Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 53)

Installing Your 1785-BEM Module
Chapter 4
4-10
Setting the 1785-BEM Module Switch Assembly
Switch assembly SW2, located at the bottom of the 1785-BEM module,
has six switches. The function of the six switches is to establish the
configuration of Channels 2A and 2B of the module. Figure 4.6 shows the
location of SW2.
Figure 4.6
Switch Assembly SW2
Switch Assembly SW2
Bottom View
19086
Toggle pushed
toward top
OFF (open).
Toggle pushed
toward bottom
ON (closed).
Switches 1, 2, and 3 determine the configuration of Channel 2A. Switches
4, 5, and 6 determine the configuration of Channel 2B.
These channels can be configured for Data Highway Plus (DH+) or for
Remote I/O (RIO) mode with the PLC-5 processor operating either in
adapter mode or in scanner mode.
The 1785-BEM module is shipped with Channel 2A configured for Data
Highway Plus (DH+) and Channel 2B configured for Remote I/O (RIO)
with the processor in scanner mode at 57.6 kbaud.
Refer to Table 4.B to configure Channels 2A and 2B using switch
assembly SW2 switches.