ReadModbusBuffer
Reads (consumes) data sent by a remote client using Modbusprotocol.The referenced Buffer data structure, which is created by a FormatInputBufferfunction, defines how the received data is interpreted.The remote client that is writing to the In-Sight vision system must use Registers 50000 – 50127.For more information, see FormatInputBuffer.
- This function is only available on In-Sight vision systems running In-Sight firmware 4.x.x, and is not available on In-Sight vision systems running In-Sight firmware 5.1.0 and later. For a complete list of models and supported firmware versions, see Firmware Versions.
- For available Modbus TCP implementations on different In-Sight firmware versions, see Modbus TCP Communications.
ReadModbusBufferInputs
Syntax: ReadModbusBuffer(Event,Buffer,Byte/Word Order)
Parameter | Description |
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Specifies the update event on which to readdata. This parameter must be a reference to one of the following:
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Specifies a reference to a Bufffer data structurecreated by a FormatInputBuffer function,which defines how the received data is interpreted. Note: The maximum length for input data is 4,000 bytes.
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Specifies the bit order for words and bytes read by thefunction.The available values are:
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ReadModbusBufferOutputs
Returns |
A ReadModbus data structure containingthe data sent by a client or #ERR if any input parameters are invalidor a connection from a client has not been established. |
Results |
Data in the ReadModbus structure isaccessed using the GetBufferDatafunction.For more information, see Input/Output. |