Delta RMC101 - Manual (Page 485)

Serial (RS-232/422/485) 5.5
Communications 5-235
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5.5 Serial (RS-232/422/485)
5.5.1 RMC SERIAL Overview
The RMC SERIAL module adds a single serial port to the RMC for communications with other
devices such as HMIs and PLCs. This port cannot be used for communications with RMCWin or
the RMCLink ActiveX Control and .NET Assembly Component. However, that one serial port has
a great amount of flexibility, as summarized below:
• Protocols: Modbus/RTU, Allen-Bradley DF1 (Full- and Half-duplex), Mitsubishi Binary
• Baud Rate: 9,600 to 115,200.
• Parity: Odd, Even, or None
• Line Drivers: RS-232, RS-422, and RS-485
• Flow Control (RS-232 only): None or Hardware (RTS/CTS)
• Termination and Biasing (RS-422/485 only): Both software selectable on Rx and Tx wire pairs
Note: Hardware revision 1 of the RMC SERIAL module is more limited in its termination and
biasing options. See RS-422/485 Termination and Biasing for details.
In addition, the RMC SERIAL has been designed to facilitate adding additional protocols and
higher baud rates as driven by customer demand. Therefore, if your serial protocol or baud rate is
not currently supported, contact Delta to request a new protocol or feature.
The RMC SERIAL module is passive in that it always waits for a request from a master serial
device before responding. It does not initiate communications.
Because of the large number of options offered by the RMC SERIAL, setting up the RMC SERIAL