Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 97)

Publication 1753-UM001C-EN-P - March 2010 97
Wire the 1753-IF8XOF4 Analog I/O Module Chapter 9
Standard Analog Outputs The module has 4 analog outputs, which are not safety-rated outputs.
However, in the event of an internal error, they can be shut down
safely through configuration via the user program.
When you are not using the analog outputs, use RSLogix Guard PLUS!
programming software to set the 4 analog output (USED) system
signals to FALSE. When set to FALSE, no output signals are transmitted
when the safety switches are opened. Alternatively, you can set the
analog outputs to zero by using the Emergency Off system variable.
These are the analog output resolution options.
19 T7 Sensor supply 7
20 I7 Analog input 7
21 L- Reference pole input 7
22 T8 Sensor supply 8
23 I8 Analog input 8
24 L- Reference pole input 8
Terminal Number Designation Function
ATTENTION
To achieve SIL 3, the output values must be read back via safety
analog inputs and evaluated in the RSLogix Guard PLUS! user
program. Appropriate reactions to incorrect output values must
be applied. Otherwise, they may not be used as safety outputs.
Value Range in the Application Output Current
0 0 mA
2000 20 mA