Morning, I've been experiencing random fence opens in one of our cells. It is a Single M710ic that sits on a track with 2 stations. A & B. (Controller R-30iA). Welding Robot.
I wrote a macro that is attached to several registers with a "+1" to catch any DI that I thought would be relevant to the issue. After watching it for a couple of hours, it registered a count several times for the front fence. As of now, we have replaced the following: Sender and receiving cable to light curtain, BOTH sending and Receiving light curtains and the Sick Relay attached to the Input. I have had maintenance look over the cabinet for any loose wiring or issues that could be at fault with 0 probelms found.
Currently the issue is still happening. BUT, While running production the issue will vary, sometimes 20+"Fence Open" errors within an 8 hour shift or none at all. COMPLETELY RANDOM!
FYI the issue or "error" is located on side B only. However, there are errors being reported on the alternant side "A". I can not confirm, nor do I believe the issue is located in that area since I am viewing it at a constant on both side A and B with no detection to prove such claim form alternate shifts.
The Picture attached is a just a reference to location and counter.
Any help or suggestions would be appreciated.