Created Date: June 28,2012

Created by: kewakl

I do not have a Micro available.

Can you occasionally send a Switch-To Screen number value then check if the Current Screen number value changes accordingly?

Do the unused Keypad bits in PLC_START_WORD +1 or PLC_START_WORD +2 get cleared by the Micro when connected.

Caution, If these bits ever get assigned by Koyo, you may have a LOT of changes to make!

I do NOT think that the Micro has an internal system clock bit that you can monitor.

Maybe time to request AD add a clock bit for heartbeat monitoring

Created Date: June 28,2012

Created by: Do-more PE

Setup the Panel to PLC communication.

At the end of your PLC program, write a zero to the Panel to PLC word.

Monitor the Panel to PLC word at the beginning of the program for a zero and increment a counter. (The reason this works is that external communications is done during start of scan before the ladder starts processing)

If the counter goes over some value, say four, then assume the panel to PLC communications is lost.

Created Date: June 28,2012

Created by: jbailey

Hi folks,

Is there a way for the ladder program to recognize loss of C-More Micro to DL06 PLC comm? I have the cable connected to port 2 on the PLC and port 2 on the touchscreen. I don't want to stop the program from running completely, just as a rung condition. I checked the Special Relays list in the manual but none would work. This would not only detect comm loss due to PLC side issues, but cable problem, screen hardware problem, and loss of 24vdc to screen.

Using the following hardware:

6 " C-More Micro Touchscreen #EA1-S6MLW

PLC #D0-06DR

Cable #EA-2CBL-1

Thanks

JB