User's Manual

3.4 CIO-ERB24 & SSR-RACK24 CONNECTIONS
PCI-DIO96 boards provide digital I/O in two major groups of 48 bits each (96 total,
but each side of the C100FF-xx cable provides 48 bits). However, many popular
relay and SSR boards provide only 24-bits of I/O. The CIO-ERB24 and
SSR-RACK24 each implements a connector scheme where all 96 bits of the
PCI-DIO96 board may be used to control relays and/or SSRs. This configuration is
shown in Figure 3-4 below. The 24-bits of digital I/O on PCI-DIO96 connector pins
1-24 (base address +0 through +3) control the first relay board. The 24-bits on pins
25-50 will control the second relay/SSR board on the daisy chain and so on up to
100 pins.
Figure 3-4. Relay Rack Cabling
7
CIO-ERB24
or
SSR-RACK24
CIO-ERB24
or
SSR-RACK24
C100FF-X Cable
PCI-DIO96
CIO-ERB24
or
SSR-RACK24
CIO-ERB24
or
SSR-RACK24
IN
IN
IN
IN
OUT
OUT
OUT
OUT