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Communication Between a Quantum Master and Momentum Slave using Modbus
I am currently working on a PLC project. I would like to establish a master and slave communication using Modbus protocol. I would like the Quantum (master) to talk to Momentum (slave) via Modbus. But I have little experience with Modbus. The PLC software I use is Concept v2.2. Please, could someone help with some tips and an example of the code for this communication?
Simplest: Use the IO Scanner Wizard from the Configuration Extensions.
More Complex: Use the MSTR command to send messages (Note: enter hex 0300 for NOE module in slot 3).
More Complex: Use the MSTR command to send messages (Note: enter hex 0300 for NOE module in slot 3).
The I/O Scanner is designed to work with a Ethernet connection. Since you indicated that you want to use Modbus this would indicate that you are planning to use a serial connection (RS232, RS422 or RS485). The correct command to use in the Concept software would be the XMIT (984LL Implementation) or the XXMIT (IEC61131-3 Implementation). I would need to verify that Concept Version 2.2 provides this functionality. The latest version of Concept is Version 2.6SR5.
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