Fault Latching and Logging

cadomanis

Member
Join Date
Nov 2007
Location
Brooklyn, NY
Posts
13
I am finding a increasing need to log both faults and actions in my projects. I have typically done this ( at least for faults) by creating a latched copy of the fault, and then executing a logging subrouting whenever that latched version turns off. I also used the latched version of the faults throughout my code to control other actions/functions. When there are upwards of hundreds of these simple latching rungs, it can become a big mainteance drag / memory hog. I have come up with a new idea using a for-next loop strucuture to make things easier, but I am unsure about a few things.

1) Are the latched bits going to stay maintained from one execution of the subroutine to another.
2) Is the for/next strucutre going to prove very processor intensive and bog down my scan.

I have attached a PDF of the code in questions. There is a singel example of the old method, as well as the new subroutine. Any feedbak would be greatly appreciated. Compeltey differnet ideas and solutions are of course also welcome.

thanks,

C-
 

Similar Topics

Kindly, we have the following configuration fault on a Kinetix 5700 axis. It only appears when we go online on the Plc. We are just starting the...
Replies
2
Views
86
Have a system that has been running for over a year and all of a sudden getting a ExcessiveVelocityFault on one of the drives when the MSO command...
Replies
2
Views
142
Hi, Experts: We have 20 + years old GE PLC series 90-30 stop running (the run led not on and battery led not on) and HMI showing that "PLC has...
Replies
7
Views
195
Power flex 527 Network based safety drive had faulty and alarm pop up SOS Code internal fault Unable to set or clear the fault manually or...
Replies
5
Views
115
Hi hoping someone can assist me with current issue I am experiencing with an ABB drive. Problem I’m experiencing is a ABB drive supply a large...
Replies
4
Views
208
Back
Top Bottom