MODBUS APPLICATION PROTOCOL SPECIFICATION V1
Every type of devices (PLC, HMI, Control Panel, Driver, Motion control, I/O Device…) can use MODBUS protocol to initiate a remote operation. The same communication can be done as well on serial line as on an Ethernet TCP/IP networks. Gateways allow a communication between several types of buses or network using the MODBUS protocol.
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Modicon Modbus Protocol Reference Guide
modbus.orgDOK-3Modicon Modbus Protocol Reference Guide PI–MBUS–300 Rev. J June 1996 MODICON, Inc., Industrial Automation Systems One High Street North Andover, Massachusetts 01845
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