Rockwell Automation Publication 5069-UM004A-EN-P - April 2019 137
Safety Module Features   Chapter 5
Single-channel Mode
If an error is detected on the input channel, Safety Input Data and Safety Input 
Status turn off. 
For information on how to use single-channel mode with a 5069-IB8S or 
5069-IB8SK module affects the safety application suitability level, see 
Table 42 
on page 133.
Figure 14 - Normal Operation and Fault Detection (Not to Scale)
Normal Operation
Fault Detection
24V DC
0V DC
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Safety Input 0 
Data
Safety Input 0 
Status
Test Output 0
External Device
Input Terminal 0
Safety Network Data 
Sent to the Controller
24V DC
0V DC
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Safety Input 0 
Data
Safety Input 0 
Status
Test Output 0
External Device
Input Terminal 0
Safety Network Data 
Sent to the Controller
Fault Detected
Fault is declared at 
the end of the Test 
Output pulse.