Modbus Steps is using a unique system to
identify connections at run-time. You can use Modbus Steps to communicate in
parallel with different Modbus Devices.
During an Open Step, a connection ID is automatically created in the current
execution thread based on the Connection Name. All the Steps using the
same Connection Name in a same execution are communicating with the same
device.
Connection Name is an expression, so you can use a string constant as Connection Name or directly as a TestStand Variable or an expression.
Thanks to this skill, you can execute in Parallel different execution of the same sequence file to communicate with different devices without changing all the steps.
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Tip Make sure to change programmatically the resource (COM port, IP address…) for each thread in the pre-expression of the open connection step to communicate with different devices in different execution. |
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Note The parameters of steps configuration for all Modbus Steps is added to the report by default. |
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See Also
