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Reliance Communication Driver Manual
Serial Communication Card
Serial Card Connection
A serial communication card can be placed in a rack with one or more Reliance PLC processors. The
default PLC ID# for the serial communication card on the Operator Station will be in the form of
"node.slot", where the node number is the slot where the serial communication card resides, and the
slot number is the slot where the processor resides.
The default baud rates on the top, middle and bottom port on the card are 9600, 4800 and 1200,
respectively. Both the node number and the baud rates on the serial communications card can be
changed by either PLC logic or by using a programming terminal.
Example:
Serial communications card in slot 2; processor in slot 1.
PanelMate PLC ID# = 2.1
R-Net is the network used by Reliance for its PLCs. To access the network, the Operator Station must
have a port connected to a Gateway. The Gateway must, in turn, be connected to an R-Net processor.
Refer to the Reliance documentation for details on these devices and their connections. The Operator
Station will have access to every node in the network to which the R-Net processor is connected.
R-Net Connection
To access a particular PLC in the network, use the node number of the R-Net processor residing in the
same rack as the PLC. The node number of the R-Net processor is determined by the switch settings
on the front panel of the R-Net processor. The node number is given in hexadecimal on the front
panel.
