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feat(plc): analyse graphical logic (FBD/LD) from PLCopen XML (#169)
2026-07-16 11:43:49 +00:00

57 lines
2.6 KiB
XML

<?xml version="1.0" encoding="utf-8"?>
<!-- Function Block Diagram (FBD) POU in PLCopen TC6 XML form. Demonstrates that
the scanner analyses graphical logic, not just Structured Text: the same
defects (cleartext Modbus master on 502, a hardcoded HMI password, a safety
enable driven FALSE) are here wired as blocks and in/out variables. -->
<project xmlns="http://www.plcopen.org/xml/tc6_0201">
<types>
<pous>
<pou name="PumpFbdCtrl" pouType="functionBlock">
<interface>
<inputVars>
<variable name="HmiPassword"><type><string/></type></variable>
<variable name="Safety_Enable"><type><BOOL/></type></variable>
<variable name="ServerIp"><type><string/></type></variable>
</inputVars>
</interface>
<body>
<FBD>
<!-- Modbus/TCP master: cleartext (AUTH := FALSE) on port 502 -->
<inVariable localId="1"><expression>'10.20.0.5'</expression><connectionPointOut/></inVariable>
<inVariable localId="2"><expression>502</expression><connectionPointOut/></inVariable>
<inVariable localId="3"><expression>FALSE</expression><connectionPointOut/></inVariable>
<block localId="10" typeName="Modbus_TCP_Master">
<inputVariables>
<variable formalParameter="IP">
<connectionPointIn><connection refLocalId="1"/></connectionPointIn>
</variable>
<variable formalParameter="PORT">
<connectionPointIn><connection refLocalId="2"/></connectionPointIn>
</variable>
<variable formalParameter="AUTH">
<connectionPointIn><connection refLocalId="3"/></connectionPointIn>
</variable>
</inputVariables>
<outputVariables/>
</block>
<!-- Hardcoded HMI password wired into an output -->
<inVariable localId="20"><expression>'admin123'</expression><connectionPointOut/></inVariable>
<outVariable localId="21">
<expression>HmiPassword</expression>
<connectionPointIn><connection refLocalId="20"/></connectionPointIn>
</outVariable>
<!-- Safety enable driven FALSE in logic -->
<inVariable localId="30"><expression>FALSE</expression><connectionPointOut/></inVariable>
<outVariable localId="31">
<expression>Safety_Enable</expression>
<connectionPointIn><connection refLocalId="30"/></connectionPointIn>
</outVariable>
</FBD>
</body>
</pou>
</pous>
</types>
</project>