Python Safe Globals now have more reliable triggering of OnChange call. Added "Onchange" object to accessible runtime variables that let user python code see count of changes and first and last values.
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<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>