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CAN-2054C user’s manual (Revision 1.30, Nov/05/2014) ------
8
2.3 I/O Pair-connection Mode
The CAN-2054C module provides the I/O pair-connection function. Before
using this function, you need to prepare one CAN-2054C module and a 8-bit
DO and 8-bit DI CAN-2000 series module (such as CAN-2054C). When
applying this function, the DI channels of one CAN-2054C and the DO
channels of another CAN-2054C are mapping with each other. That is to say
that when the DI channels of one CAN-2054C get the ON signal, the
corresponding DO channels of another CAN-2054C will be turned on.
When you completed the connection of these two CAN-2054Cs by CAN
bus, you need to set the baud rate rotary switch of these two modules to 0x8 ~
0xF, and configure the node ID of them by the special rule. Set the node ID to
be odd for one module, and set the node ID of another module to be the value
which is equal to the node ID increased one of the former. Therefore, they are
the couple as the following figure.
Figure 2-5
For example, user uses two CAN-2054Cs to do I/O pair-connection. The
connection structure is as follows.