plcopen/Standard_Function_Blocks.xml
author Sergey Surkov <surkovsv93@gmail.com>
Tue, 18 Oct 2016 17:44:08 +0300
changeset 1544 2969c2123105
parent 1410 0d34b69cc9b5
child 1722 89824afffef2
permissions -rw-r--r--
Fix bug with two or more wires connected to one input. Now only one wire can be connected to one input, except BOOLean signals in LD and SFC. If user trying to connect wire with already connected input, wire highlight will become red.
Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
<?xml version='1.0' encoding='utf-8'?>
<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">
  <fileHeader companyName="Beremiz" productName="Standard Function Blocks Library" productVersion="1.0" creationDateTime="2013-09-09T09:56:11"/>
  <contentHeader name="Standard Funtion Blocks" author="Laurent Bessard" modificationDateTime="2013-09-09T10:58:13">
    <coordinateInfo>
      <fbd>
        <scaling x="0" y="0"/>
      </fbd>
      <ld>
        <scaling x="0" y="0"/>
      </ld>
      <sfc>
        <scaling x="0" y="0"/>
      </sfc>
    </coordinateInfo>
  </contentHeader>
  <types>
    <dataTypes/>
    <pous>
      <pou name="SR" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="S1">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q1">
              <type>
                <BOOL/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[Q1 := S1 OR ((NOT R) AND Q1);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The SR bistable is a latch where the Set dominates.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="RS" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="S">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R1">
              <type>
                <BOOL/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q1">
              <type>
                <BOOL/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[Q1 := (NOT R1) AND (S OR Q1);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The RS bistable is a latch where the Reset dominates.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="SEMA" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CLAIM">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="RELEASE">
              <type>
                <BOOL/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="BUSY">
              <type>
                <BOOL/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="Q_INTERNAL">
              <type>
                <BOOL/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[Q_INTERNAL := CLAIM OR ( Q_INTERNAL AND (NOT RELEASE));
BUSY := Q_INTERNAL;]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The semaphore provides a mechanism to allow software elements mutually exclusive access to certain ressources.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="R_TRIG" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CLK">
              <type>
                <BOOL/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
          </outputVars>
          <localVars retain="true">
            <variable name="M">
              <type>
                <BOOL/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[Q := CLK AND NOT M;
M := CLK;]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The output produces a single pulse when a rising edge is detected.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="F_TRIG" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CLK">
              <type>
                <BOOL/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
          </outputVars>
          <localVars retain="true">
            <variable name="M">
              <type>
                <BOOL/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[Q := NOT CLK AND NOT M;
M := NOT CLK;]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The output produces a single pulse when a falling edge is detected.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTU" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <INT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <INT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CU_T(CU);
IF R THEN CV := 0;
ELSIF CU_T.Q AND (CV < PV)
  THEN CV := CV+1;
END_IF;
Q := (CV >= PV);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-counter can be used to signal when a count has reached a maximum value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTU_DINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <DINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <DINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CU_T(CU);
IF R THEN CV := 0;
ELSIF CU_T.Q AND (CV < PV)
  THEN CV := CV+1;
END_IF;
Q := (CV >= PV);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-counter can be used to signal when a count has reached a maximum value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTU_LINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <LINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <LINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CU_T(CU);
IF R THEN CV := 0;
ELSIF CU_T.Q AND (CV < PV)
  THEN CV := CV+1;
END_IF;
Q := (CV >= PV);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-counter can be used to signal when a count has reached a maximum value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTU_UDINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <UDINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <UDINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CU_T(CU);
IF R THEN CV := 0;
ELSIF CU_T.Q AND (CV < PV)
  THEN CV := CV+1;
END_IF;
Q := (CV >= PV);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-counter can be used to signal when a count has reached a maximum value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTU_ULINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <ULINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <ULINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CU_T(CU);
IF R THEN CV := 0;
ELSIF CU_T.Q AND (CV < PV)
  THEN CV := CV+1;
END_IF;
Q := (CV >= PV);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-counter can be used to signal when a count has reached a maximum value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTD" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <INT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <INT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
IF LD THEN CV := PV;
ELSIF CD_T.Q AND (CV > 0)
  THEN CV := CV-1;
END_IF;
Q := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The down-counter can be used to signal when a count has reached zero, on counting down from a preset value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTD_DINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <DINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <DINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
IF LD THEN CV := PV;
ELSIF CD_T.Q AND (CV > 0)
  THEN CV := CV-1;
END_IF;
Q := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The down-counter can be used to signal when a count has reached zero, on counting down from a preset value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTD_LINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <LINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <LINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
IF LD THEN CV := PV;
ELSIF CD_T.Q AND (CV > 0)
  THEN CV := CV-1;
END_IF;
Q := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The down-counter can be used to signal when a count has reached zero, on counting down from a preset value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTD_UDINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <UDINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <UDINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
IF LD THEN CV := PV;
ELSIF CD_T.Q AND (CV > 0)
  THEN CV := CV-1;
END_IF;
Q := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The down-counter can be used to signal when a count has reached zero, on counting down from a preset value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTD_ULINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <ULINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <ULINT/>
              </type>
            </variable>
          </outputVars>
          <localVars>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
IF LD THEN CV := PV;
ELSIF CD_T.Q AND (CV > 0)
  THEN CV := CV-1;
END_IF;
Q := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The down-counter can be used to signal when a count has reached zero, on counting down from a preset value.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTUD" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <INT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="QU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="QD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <INT/>
              </type>
            </variable>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
CU_T(CU);
IF R THEN CV := 0;
ELSIF LD THEN CV := PV;
ELSE
  IF NOT (CU_T.Q AND CD_T.Q) THEN
    IF CU_T.Q AND (CV < PV)
    THEN CV := CV+1;
    ELSIF CD_T.Q AND (CV > 0)
    THEN CV := CV-1;
    END_IF;
  END_IF;
END_IF;
QU := (CV >= PV);
QD := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTUD_DINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <DINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="QU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="QD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <DINT/>
              </type>
            </variable>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
CU_T(CU);
IF R THEN CV := 0;
ELSIF LD THEN CV := PV;
ELSE
  IF NOT (CU_T.Q AND CD_T.Q) THEN
    IF CU_T.Q AND (CV < PV)
    THEN CV := CV+1;
    ELSIF CD_T.Q AND (CV > 0)
    THEN CV := CV-1;
    END_IF;
  END_IF;
END_IF;
QU := (CV >= PV);
QD := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTUD_LINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <LINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="QU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="QD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <LINT/>
              </type>
            </variable>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
CU_T(CU);
IF R THEN CV := 0;
ELSIF LD THEN CV := PV;
ELSE
  IF NOT (CU_T.Q AND CD_T.Q) THEN
    IF CU_T.Q AND (CV < PV)
    THEN CV := CV+1;
    ELSIF CD_T.Q AND (CV > 0)
    THEN CV := CV-1;
    END_IF;
  END_IF;
END_IF;
QU := (CV >= PV);
QD := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTUD_UDINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <UDINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="QU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="QD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <UDINT/>
              </type>
            </variable>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
CU_T(CU);
IF R THEN CV := 0;
ELSIF LD THEN CV := PV;
ELSE
  IF NOT (CU_T.Q AND CD_T.Q) THEN
    IF CU_T.Q AND (CV < PV)
    THEN CV := CV+1;
    ELSIF CD_T.Q AND (CV > 0)
    THEN CV := CV-1;
    END_IF;
  END_IF;
END_IF;
QU := (CV >= PV);
QD := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="CTUD_ULINT" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="CU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="R">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="LD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="PV">
              <type>
                <ULINT/>
              </type>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="QU">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="QD">
              <type>
                <BOOL/>
              </type>
            </variable>
            <variable name="CV">
              <type>
                <ULINT/>
              </type>
            </variable>
            <variable name="CD_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
            <variable name="CU_T">
              <type>
                <derived name="R_TRIG"/>
              </type>
            </variable>
          </outputVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[CD_T(CD);
CU_T(CU);
IF R THEN CV := 0;
ELSIF LD THEN CV := PV;
ELSE
  IF NOT (CU_T.Q AND CD_T.Q) THEN
    IF CU_T.Q AND (CV < PV)
    THEN CV := CV+1;
    ELSIF CD_T.Q AND (CV > 0)
    THEN CV := CV-1;
    END_IF;
  END_IF;
END_IF;
QU := (CV >= PV);
QD := (CV <= 0);]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="TP" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="IN">
              <type>
                <BOOL/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[first input parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PT">
              <type>
                <TIME/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[second input parameter]]></xhtml:p>
              </documentation>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[first output parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="ET">
              <type>
                <TIME/>
              </type>
              <initialValue>
                <simpleValue value="T#0s"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[second output parameter]]></xhtml:p>
              </documentation>
            </variable>
          </outputVars>
          <localVars>
            <variable name="STATE">
              <type>
                <SINT/>
              </type>
              <initialValue>
                <simpleValue value="0"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[internal state: 0-reset, 1-counting, 2-set]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PREV_IN">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
            </variable>
            <variable name="CURRENT_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
            <variable name="START_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[{__SET_VAR(data__->,CURRENT_TIME,,__CURRENT_TIME)}

IF ((STATE = 0) AND NOT(PREV_IN) AND IN)   (* found rising edge on IN *)
THEN
  (* start timer... *)
  STATE := 1;
  Q := TRUE;
  START_TIME := CURRENT_TIME;

ELSIF (STATE = 1)
THEN
  IF ((START_TIME + PT) <= CURRENT_TIME)
  THEN
    STATE := 2;
    Q := FALSE;
    ET := PT;
  ELSE
    ET := CURRENT_TIME - START_TIME;
  END_IF;
END_IF;

IF ((STATE = 2) AND NOT(IN))
THEN
  ET := T#0s;
  STATE := 0;
END_IF;

PREV_IN := IN;
]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The pulse timer can be used to generate output pulses of a given time duration.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="TON" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="IN">
              <type>
                <BOOL/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[first input parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PT">
              <type>
                <TIME/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[second input parameter]]></xhtml:p>
              </documentation>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[first output parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="ET">
              <type>
                <TIME/>
              </type>
              <initialValue>
                <simpleValue value="T#0s"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[second output parameter]]></xhtml:p>
              </documentation>
            </variable>
          </outputVars>
          <localVars>
            <variable name="STATE">
              <type>
                <SINT/>
              </type>
              <initialValue>
                <simpleValue value="0"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[internal state: 0-reset, 1-counting, 2-set]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PREV_IN">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
            </variable>
            <variable name="CURRENT_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
            <variable name="START_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[{__SET_VAR(data__->,CURRENT_TIME,,__CURRENT_TIME)}

IF ((STATE = 0) AND NOT(PREV_IN) AND IN)   (* found rising edge on IN *)
THEN
  (* start timer... *)
  STATE := 1;
  Q := FALSE;
  START_TIME := CURRENT_TIME;

ELSE
  (* STATE is 1 or 2 !! *)
  IF (NOT(IN))
  THEN
    ET := T#0s;
    Q := FALSE;
    STATE := 0;

  ELSIF (STATE = 1)
  THEN
    IF ((START_TIME + PT) <= CURRENT_TIME)
    THEN
      STATE := 2;
      Q := TRUE;
      ET := PT;
    ELSE
      ET := CURRENT_TIME - START_TIME;
    END_IF;
  END_IF;

END_IF;

PREV_IN := IN;
]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The on-delay timer can be used to delay setting an output true, for fixed period after an input becomes true.]]></xhtml:p>
        </documentation>
      </pou>
      <pou name="TOF" pouType="functionBlock">
        <interface>
          <inputVars>
            <variable name="IN">
              <type>
                <BOOL/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[first input parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PT">
              <type>
                <TIME/>
              </type>
              <documentation>
                <xhtml:p><![CDATA[second input parameter]]></xhtml:p>
              </documentation>
            </variable>
          </inputVars>
          <outputVars>
            <variable name="Q">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[first output parameter]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="ET">
              <type>
                <TIME/>
              </type>
              <initialValue>
                <simpleValue value="T#0s"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[second output parameter]]></xhtml:p>
              </documentation>
            </variable>
          </outputVars>
          <localVars>
            <variable name="STATE">
              <type>
                <SINT/>
              </type>
              <initialValue>
                <simpleValue value="0"/>
              </initialValue>
              <documentation>
                <xhtml:p><![CDATA[internal state: 0-reset, 1-counting, 2-set]]></xhtml:p>
              </documentation>
            </variable>
            <variable name="PREV_IN">
              <type>
                <BOOL/>
              </type>
              <initialValue>
                <simpleValue value="FALSE"/>
              </initialValue>
            </variable>
            <variable name="CURRENT_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
            <variable name="START_TIME">
              <type>
                <TIME/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <ST>
            <xhtml:p><![CDATA[{__SET_VAR(data__->,CURRENT_TIME,,__CURRENT_TIME)}

IF ((STATE = 0) AND PREV_IN AND NOT(IN))   (* found falling edge on IN *)
THEN
  (* start timer... *)
  STATE := 1;
  START_TIME := CURRENT_TIME;

ELSE
  (* STATE is 1 or 2 !! *)
  IF (IN)
  THEN
    ET := T#0s;
    STATE := 0;

  ELSIF (STATE = 1)
  THEN
    IF ((START_TIME + PT) <= CURRENT_TIME)
    THEN
      STATE := 2;
      ET := PT;
    ELSE
      ET := CURRENT_TIME - START_TIME;
    END_IF;
  END_IF;

END_IF;

Q := IN OR (STATE = 1);
PREV_IN := IN;
]]></xhtml:p>
          </ST>
        </body>
        <documentation>
          <xhtml:p><![CDATA[The off-delay timer can be used to delay setting an output false, for fixed period after input goes false.]]></xhtml:p>
        </documentation>
      </pou>
    </pous>
  </types>
  <instances>
    <configurations/>
  </instances>
</project>