Hello all,
I'm working on a project using an AB CompactLogix PLC and 2 Red Lion HMIs (G3) running Crimson 3.0.
The PLC and the HMIs are connected to an Ethernet switch, this way establishing all the communications through Ethernet.
The HMIs run identical version of the same project, both reading from and writing to the (same) PLC.
Something weird is happening with a tag on the HMI that reads the running status of a motor controlled by the PLC. I can see this tag ON in the PLC program, but on the HMI screen is OFF almost all the time. Once every 5-8 seconds it turns to ON for less than a second and then goes back to OFF. I tried with some other tags associated with the same motor, and with the running status of other motors, and they were retrieving the expected values from the PLC.
Any clue about what could be happening?
Thank you!
I'm working on a project using an AB CompactLogix PLC and 2 Red Lion HMIs (G3) running Crimson 3.0.
The PLC and the HMIs are connected to an Ethernet switch, this way establishing all the communications through Ethernet.
The HMIs run identical version of the same project, both reading from and writing to the (same) PLC.
Something weird is happening with a tag on the HMI that reads the running status of a motor controlled by the PLC. I can see this tag ON in the PLC program, but on the HMI screen is OFF almost all the time. Once every 5-8 seconds it turns to ON for less than a second and then goes back to OFF. I tried with some other tags associated with the same motor, and with the running status of other motors, and they were retrieving the expected values from the PLC.
Any clue about what could be happening?
Thank you!