Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD - Manual (Page 37)

PC Ladder Programming
Chapter 4
4Ć14
For an example of monitoring a clutch/brake controller function, assume
that you wish to turn on a indicator while your clutch/brake controller is
in continuous mode. You would wire your CONTINUOUS indicator to a
terminal of an output module in any I/O chassis. You would also program
a rung with one examine-on instruction and one output-energize
instruction:
the examine-on instruction monitors input image bit 03 for module
group 0 chassis A or B.
the output energize instruction controls the CONTINUOUS indicator.
Important: Do not store data in unused data table addresses for chassis A
and B. These are reserved for future enhancements for the clutch/brake
controller.
Your PLC ladder program can monitor clutch/brake controller functions
for report generation. This allows you to display, through an RS-232-C
peripheral device, any of the following:
operator instructions fault correction procedures
status reports diagnostic message codes
The clutch/brake module generates diagnostic message codes presented in
table 7.C. Use them to generate messages that you have stored in PLC
memory. These messages can be troubleshooting instructions to your
press operators. For detailed descriptions of report generation, see the
following publications:
For PLC-2 family processors:
PLC-2 Family Report Generation Module (cat. no. 1770-RG) User’s
Manual (publication 170-815)
For PLC-3 processors:
I/O Scanner-Message Handling Module (cat. no. 1775-S4B) User’s
Manual (publication 1775-6.5.3)
Peripheral Communications Module (cat. no. 1775-GA) User’s Manual
(publication 1775-6.5.4)
For PLC-5 family processors:
BASIC Module (cat. no. 1771-DB) User’s Manual (publication
1771-6.5.34)
Report Generation