Rockwell Automation 1794-IP4 Series B FLEX I/O PULSE COUNTER User Manual - Manual (Page 62)

Chapter
7
Publication 1794ĆUM016B-EN-P - August 2002
Troubleshoot the Pulse
Counter Module
Use this chapter to troubleshoot the pulse counter module by
interpreting the indicators.
The module contains indicators for each of the following:
A B C
4 CH PULSE COUNTER MODULE
1794-IP4
AllenĆBradley
0 1 2 3
P N P N P N P N P D P D P D P D
0 1 2 3
A = Power/status indicator – indicates power applied to module and
status of module.
Red – indicates initialization of internal logic at powerup
Green – indicates initialization of internal logic is complete
and correct
B = Insertable label for writing individual I/O assignments.
C = Status Indicators –
Indication Color Description
P Yellow When on, indicates the input is active
N Yellow
When on, indicates the input is configured for 16-bit period
time measurement and 16-bit accumulating pulse counter
function
D Yellow
When on, indicates the input is conrfigured for 32-bit period
time measurement
To find out more about the IP4 module:
specifications on the IP4 module
See appendix A
For
Specifications
A
What This Chapter
Contains
Status Indicators
What's Next