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1 <?xml version='1.0' encoding='utf-8'?> |
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2 <project xmlns:ns1="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.plcopen.org/xml/tc6_0201"> |
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3 <fileHeader companyName="Beremiz" productName="Additional Function Blocks Library" productVersion="1.0" creationDateTime="2013-09-09T09:56:11"/> |
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4 <contentHeader name="Standard Funtion Blocks" author="Laurent Bessard" modificationDateTime="2013-09-10T22:45:31"> |
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5 <coordinateInfo> |
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6 <fbd> |
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7 <scaling x="0" y="0"/> |
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8 </fbd> |
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9 <ld> |
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10 <scaling x="0" y="0"/> |
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11 </ld> |
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12 <sfc> |
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13 <scaling x="0" y="0"/> |
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14 </sfc> |
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15 </coordinateInfo> |
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16 </contentHeader> |
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17 <types> |
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18 <dataTypes/> |
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19 <pous> |
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20 <pou name="RTC" pouType="functionBlock"> |
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21 <interface> |
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22 <inputVars> |
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23 <variable name="IN"> |
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24 <type> |
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25 <BOOL/> |
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26 </type> |
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27 <documentation> |
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28 <xhtml:p><![CDATA[0 - current time, 1 - load time from PDT]]></xhtml:p> |
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29 </documentation> |
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30 </variable> |
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31 <variable name="PDT"> |
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32 <type> |
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33 <DT/> |
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34 </type> |
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35 <documentation> |
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36 <xhtml:p><![CDATA[Preset datetime]]></xhtml:p> |
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37 </documentation> |
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38 </variable> |
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39 </inputVars> |
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40 <outputVars> |
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41 <variable name="Q"> |
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42 <type> |
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43 <BOOL/> |
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44 </type> |
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45 <initialValue> |
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46 <simpleValue value="FALSE"/> |
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47 </initialValue> |
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48 <documentation> |
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49 <xhtml:p><![CDATA[Copy of IN]]></xhtml:p> |
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50 </documentation> |
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51 </variable> |
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52 <variable name="CDT"> |
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53 <type> |
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54 <DT/> |
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55 </type> |
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56 <documentation> |
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57 <xhtml:p><![CDATA[Datetime, current or relative to PDT]]></xhtml:p> |
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58 </documentation> |
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59 </variable> |
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60 </outputVars> |
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61 <localVars> |
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62 <variable name="PREV_IN"> |
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63 <type> |
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64 <BOOL/> |
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65 </type> |
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66 <initialValue> |
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67 <simpleValue value="FALSE"/> |
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68 </initialValue> |
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69 </variable> |
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70 <variable name="OFFSET"> |
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71 <type> |
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72 <TIME/> |
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73 </type> |
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74 </variable> |
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75 <variable name="CURRENT_TIME"> |
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76 <type> |
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77 <DT/> |
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78 </type> |
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79 </variable> |
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80 </localVars> |
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81 </interface> |
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82 <body> |
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83 <ST> |
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84 <xhtml:p><![CDATA[{__SET_VAR(data__->,CURRENT_TIME,__CURRENT_TIME)} |
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85 |
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86 IF IN |
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87 THEN |
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88 IF NOT PREV_IN |
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89 THEN |
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90 OFFSET := PDT - CURRENT_TIME; |
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91 END_IF; |
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92 |
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93 (* PDT + time since PDT was loaded *) |
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94 CDT := CURRENT_TIME + OFFSET; |
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95 ELSE |
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96 CDT := CURRENT_TIME; |
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97 END_IF; |
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98 |
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99 Q := IN; |
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100 PREV_IN := IN; |
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101 ]]></xhtml:p> |
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102 </ST> |
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103 </body> |
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104 <documentation> |
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105 <xhtml:p><![CDATA[The real time clock has many uses including time stamping, setting dates and times of day in batch reports, in alarm messages and so on.]]></xhtml:p> |
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106 </documentation> |
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107 </pou> |
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108 <pou name="INTEGRAL" pouType="functionBlock"> |
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109 <interface> |
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110 <inputVars> |
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111 <variable name="RUN"> |
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112 <type> |
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113 <BOOL/> |
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114 </type> |
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115 <documentation> |
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116 <xhtml:p><![CDATA[1 = integrate, 0 = hold]]></xhtml:p> |
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117 </documentation> |
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118 </variable> |
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119 <variable name="R1"> |
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120 <type> |
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121 <BOOL/> |
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122 </type> |
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123 <documentation> |
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124 <xhtml:p><![CDATA[Overriding reset]]></xhtml:p> |
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125 </documentation> |
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126 </variable> |
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127 <variable name="XIN"> |
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128 <type> |
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129 <REAL/> |
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130 </type> |
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131 <documentation> |
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132 <xhtml:p><![CDATA[Input variable]]></xhtml:p> |
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133 </documentation> |
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134 </variable> |
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135 <variable name="X0"> |
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136 <type> |
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137 <REAL/> |
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138 </type> |
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139 <documentation> |
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140 <xhtml:p><![CDATA[Initial value]]></xhtml:p> |
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141 </documentation> |
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142 </variable> |
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143 <variable name="CYCLE"> |
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144 <type> |
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145 <TIME/> |
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146 </type> |
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147 <documentation> |
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148 <xhtml:p><![CDATA[Sampling period]]></xhtml:p> |
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149 </documentation> |
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150 </variable> |
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151 </inputVars> |
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152 <outputVars> |
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153 <variable name="Q"> |
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154 <type> |
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155 <BOOL/> |
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156 </type> |
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157 <documentation> |
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158 <xhtml:p><![CDATA[NOT R1]]></xhtml:p> |
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159 </documentation> |
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160 </variable> |
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161 <variable name="XOUT"> |
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162 <type> |
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163 <REAL/> |
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164 </type> |
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165 <documentation> |
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166 <xhtml:p><![CDATA[Integrated output]]></xhtml:p> |
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167 </documentation> |
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168 </variable> |
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169 </outputVars> |
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170 </interface> |
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171 <body> |
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172 <ST> |
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173 <xhtml:p><![CDATA[Q := NOT R1 ; |
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174 IF R1 THEN XOUT := X0; |
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175 ELSIF RUN THEN XOUT := XOUT + XIN * TIME_TO_REAL(CYCLE); |
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176 END_IF;]]></xhtml:p> |
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177 </ST> |
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178 </body> |
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179 <documentation> |
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180 <xhtml:p><![CDATA[The integral function block integrates the value of input XIN over time.]]></xhtml:p> |
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181 </documentation> |
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182 </pou> |
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183 <pou name="DERIVATIVE" pouType="functionBlock"> |
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184 <interface> |
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185 <inputVars> |
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186 <variable name="RUN"> |
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187 <type> |
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188 <BOOL/> |
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189 </type> |
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190 <documentation> |
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191 <xhtml:p><![CDATA[0 = reset]]></xhtml:p> |
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192 </documentation> |
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193 </variable> |
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194 <variable name="XIN"> |
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195 <type> |
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196 <REAL/> |
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197 </type> |
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198 <documentation> |
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199 <xhtml:p><![CDATA[Input to be differentiated]]></xhtml:p> |
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200 </documentation> |
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201 </variable> |
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202 <variable name="CYCLE"> |
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203 <type> |
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204 <TIME/> |
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205 </type> |
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206 <documentation> |
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207 <xhtml:p><![CDATA[Sampling period]]></xhtml:p> |
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208 </documentation> |
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209 </variable> |
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210 </inputVars> |
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211 <outputVars> |
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212 <variable name="XOUT"> |
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213 <type> |
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214 <REAL/> |
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215 </type> |
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216 <documentation> |
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217 <xhtml:p><![CDATA[Differentiated output]]></xhtml:p> |
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218 </documentation> |
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219 </variable> |
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220 </outputVars> |
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221 <localVars> |
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222 <variable name="X1"> |
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223 <type> |
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224 <REAL/> |
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225 </type> |
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226 </variable> |
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227 <variable name="X2"> |
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228 <type> |
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229 <REAL/> |
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230 </type> |
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231 </variable> |
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232 <variable name="X3"> |
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233 <type> |
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234 <REAL/> |
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235 </type> |
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236 </variable> |
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237 </localVars> |
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238 </interface> |
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239 <body> |
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240 <ST> |
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241 <xhtml:p><![CDATA[IF RUN THEN |
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242 XOUT := (3.0 * (XIN - X3) + X1 - X2) |
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243 / (10.0 * TIME_TO_REAL(CYCLE)); |
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244 X3 := X2; |
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245 X2 := X1; |
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246 X1 := XIN; |
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247 ELSE |
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248 XOUT := 0.0; |
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249 X1 := XIN; |
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250 X2 := XIN; |
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251 X3 := XIN; |
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252 END_IF;]]></xhtml:p> |
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253 </ST> |
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254 </body> |
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255 <documentation> |
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256 <xhtml:p><![CDATA[The derivative function block produces an output XOUT proportional to the rate of change of the input XIN.]]></xhtml:p> |
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257 </documentation> |
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258 </pou> |
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259 <pou name="PID" pouType="functionBlock"> |
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260 <interface> |
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261 <inputVars> |
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262 <variable name="AUTO"> |
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263 <type> |
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264 <BOOL/> |
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265 </type> |
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266 <documentation> |
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267 <xhtml:p><![CDATA[0 - manual , 1 - automatic]]></xhtml:p> |
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268 </documentation> |
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269 </variable> |
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270 <variable name="PV"> |
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271 <type> |
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272 <REAL/> |
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273 </type> |
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274 <documentation> |
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275 <xhtml:p><![CDATA[Process variable]]></xhtml:p> |
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276 </documentation> |
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277 </variable> |
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278 <variable name="SP"> |
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279 <type> |
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280 <REAL/> |
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281 </type> |
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282 <documentation> |
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283 <xhtml:p><![CDATA[Set point]]></xhtml:p> |
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284 </documentation> |
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285 </variable> |
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286 <variable name="X0"> |
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287 <type> |
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288 <REAL/> |
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289 </type> |
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290 <documentation> |
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291 <xhtml:p><![CDATA[Manual output adjustment - Typically from transfer station]]></xhtml:p> |
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292 </documentation> |
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293 </variable> |
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294 <variable name="KP"> |
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295 <type> |
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296 <REAL/> |
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297 </type> |
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298 <documentation> |
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299 <xhtml:p><![CDATA[Proportionality constant]]></xhtml:p> |
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300 </documentation> |
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301 </variable> |
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302 <variable name="TR"> |
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303 <type> |
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304 <REAL/> |
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305 </type> |
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306 <documentation> |
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307 <xhtml:p><![CDATA[Reset time]]></xhtml:p> |
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308 </documentation> |
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309 </variable> |
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310 <variable name="TD"> |
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311 <type> |
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312 <REAL/> |
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313 </type> |
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314 <documentation> |
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315 <xhtml:p><![CDATA[Derivative time constant]]></xhtml:p> |
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316 </documentation> |
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317 </variable> |
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318 <variable name="CYCLE"> |
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319 <type> |
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320 <TIME/> |
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321 </type> |
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322 <documentation> |
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323 <xhtml:p><![CDATA[Sampling period]]></xhtml:p> |
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324 </documentation> |
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325 </variable> |
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326 </inputVars> |
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327 <outputVars> |
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328 <variable name="XOUT"> |
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329 <type> |
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330 <REAL/> |
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331 </type> |
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332 </variable> |
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333 </outputVars> |
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334 <localVars> |
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335 <variable name="ERROR"> |
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336 <type> |
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337 <REAL/> |
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338 </type> |
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339 <documentation> |
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340 <xhtml:p><![CDATA[PV - SP]]></xhtml:p> |
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341 </documentation> |
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342 </variable> |
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343 <variable name="ITERM"> |
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344 <type> |
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345 <derived name="INTEGRAL"/> |
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346 </type> |
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347 <documentation> |
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348 <xhtml:p><![CDATA[FB for integral term]]></xhtml:p> |
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349 </documentation> |
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350 </variable> |
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351 <variable name="DTERM"> |
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352 <type> |
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353 <derived name="DERIVATIVE"/> |
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354 </type> |
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355 <documentation> |
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356 <xhtml:p><![CDATA[FB for derivative term]]></xhtml:p> |
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357 </documentation> |
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358 </variable> |
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359 </localVars> |
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360 </interface> |
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361 <body> |
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362 <ST> |
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363 <xhtml:p><![CDATA[ERROR := PV - SP ; |
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364 (*** Adjust ITERM so that XOUT := X0 when AUTO = 0 ***) |
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365 ITERM(RUN := AUTO, R1 := NOT AUTO, XIN := ERROR, |
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366 X0 := TR * (X0 - ERROR), CYCLE := CYCLE); |
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367 DTERM(RUN := AUTO, XIN := ERROR, CYCLE := CYCLE); |
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368 XOUT := KP * (ERROR + ITERM.XOUT/TR + DTERM.XOUT*TD);]]></xhtml:p> |
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369 </ST> |
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370 </body> |
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371 <documentation> |
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372 <xhtml:p><![CDATA[The PID (proportional, Integral, Derivative) function block provides the classical three term controller for closed loop control.]]></xhtml:p> |
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373 </documentation> |
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374 </pou> |
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375 <pou name="RAMP" pouType="functionBlock"> |
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376 <interface> |
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377 <inputVars> |
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378 <variable name="RUN"> |
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379 <type> |
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380 <BOOL/> |
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381 </type> |
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382 <documentation> |
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383 <xhtml:p><![CDATA[0 - track X0, 1 - ramp to/track X1]]></xhtml:p> |
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384 </documentation> |
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385 </variable> |
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386 <variable name="X0"> |
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387 <type> |
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388 <REAL/> |
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389 </type> |
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390 </variable> |
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391 <variable name="X1"> |
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392 <type> |
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393 <REAL/> |
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394 </type> |
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395 </variable> |
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396 <variable name="TR"> |
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397 <type> |
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398 <TIME/> |
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399 </type> |
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400 <documentation> |
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401 <xhtml:p><![CDATA[Ramp duration]]></xhtml:p> |
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402 </documentation> |
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403 </variable> |
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404 <variable name="CYCLE"> |
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405 <type> |
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406 <TIME/> |
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407 </type> |
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408 <documentation> |
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409 <xhtml:p><![CDATA[Sampling period]]></xhtml:p> |
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410 </documentation> |
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411 </variable> |
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412 </inputVars> |
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413 <outputVars> |
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414 <variable name="BUSY"> |
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415 <type> |
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416 <BOOL/> |
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417 </type> |
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418 <documentation> |
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419 <xhtml:p><![CDATA[BUSY = 1 during ramping period]]></xhtml:p> |
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420 </documentation> |
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421 </variable> |
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422 <variable name="XOUT"> |
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423 <type> |
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424 <REAL/> |
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425 </type> |
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426 <initialValue> |
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427 <simpleValue value="0.0"/> |
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428 </initialValue> |
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429 </variable> |
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430 </outputVars> |
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431 <localVars> |
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432 <variable name="XI"> |
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433 <type> |
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434 <REAL/> |
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435 </type> |
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436 <documentation> |
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437 <xhtml:p><![CDATA[Initial value]]></xhtml:p> |
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438 </documentation> |
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439 </variable> |
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440 <variable name="T0"> |
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441 <type> |
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442 <TIME/> |
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443 </type> |
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444 <initialValue> |
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445 <simpleValue value="T#0s"/> |
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446 </initialValue> |
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447 <documentation> |
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448 <xhtml:p><![CDATA[Elapsed time of ramp]]></xhtml:p> |
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449 </documentation> |
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450 </variable> |
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451 </localVars> |
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452 </interface> |
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453 <body> |
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454 <ST> |
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455 <xhtml:p><![CDATA[BUSY := RUN ; |
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456 IF RUN THEN |
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457 IF T >= TR THEN |
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458 BUSY := 0; |
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459 XOUT := X1; |
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460 ELSE XOUT := XI + (X1-XI) * TIME_TO_REAL(T) |
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461 / TIME_TO_REAL(TR); |
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462 T := T + CYCLE; |
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463 END_IF; |
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464 ELSE |
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465 XOUT := X0; |
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466 XI := X0; |
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467 T := T#0s; |
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468 END_IF;]]></xhtml:p> |
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469 </ST> |
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470 </body> |
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471 <documentation> |
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472 <xhtml:p><![CDATA[The RAMP function block is modelled on example given in the standard.]]></xhtml:p> |
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473 </documentation> |
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474 </pou> |
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475 <pou name="HYSTERESIS" pouType="functionBlock"> |
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476 <interface> |
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477 <inputVars> |
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478 <variable name="XIN1"> |
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479 <type> |
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480 <REAL/> |
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481 </type> |
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482 </variable> |
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483 <variable name="XIN2"> |
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484 <type> |
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485 <REAL/> |
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486 </type> |
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487 </variable> |
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488 <variable name="EPS"> |
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489 <type> |
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490 <REAL/> |
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491 </type> |
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492 </variable> |
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493 </inputVars> |
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494 <outputVars> |
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495 <variable name="Q"> |
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496 <type> |
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497 <BOOL/> |
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498 </type> |
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499 </variable> |
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500 </outputVars> |
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501 </interface> |
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502 <body> |
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503 <ST> |
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504 <xhtml:p><![CDATA[IF Q THEN |
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505 IF XIN1 < (XIN2 - EPS) THEN |
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506 Q := 0; |
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507 END_IF; |
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508 ELSIF XIN1 > (XIN2 + EPS) THEN |
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509 Q := 1; |
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510 END_IF;]]></xhtml:p> |
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511 </ST> |
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512 </body> |
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513 <documentation> |
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514 <xhtml:p><![CDATA[The hysteresis function block provides a hysteresis boolean output driven by the difference of two floating point (REAL) inputs XIN1 and XIN2.]]></xhtml:p> |
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515 </documentation> |
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516 </pou> |
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517 </pous> |
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518 </types> |
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519 <instances> |
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520 <configurations/> |
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521 </instances> |
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522 </project> |