wilkerson29847
Member
Hello everyone. I have a program that I found a math overflow in and the TON instruction had a negative value in the ACC. The only places that bit is being used is in the timer itself and a move instruction which moves the ACC value to another location for display on an HMI. Any ideas how or why I could get a negative value in the ACC? It is in RS Logix 5000 ladder logic, is used for a cycle timer, the preset is 36000000 and not sure what else to tell you.
Thanks,
David
Thanks,
David