3. Wire Connection :
3.1 Digital Input Wire Connection :
Input Type
ON State
DI value as
0
OFF State
DI value as
1
Relay
Contact
TTL/CMOS
Logic
Open
Collector
3.2 Digital Output Wire Connection :
Output Type
ON State
DO value as
0
OFF State
DO value as
1
Drive
Relay
Resistance
Load
I/O Expansion Bus for 7188X/7188E User’s Manual, Jan/2005 v1.5, 7PH-000-15---14