Hi guys.
Im a total PLC noob.
i suspect a dead 331 cpu. Unable to communicate with it using the LM90 start utility. But i could on another CPU so lead, comms and software ok on laptop.
Within the 331 CPU there are two sockets for chips.
One with CP3A3 written under it and another with the jumper selection under it.
My question is what is stored on the chip in the socket with CP3A3 under it. The chip itself has 395-045D (or o) 8.21 written on it. I think it may be CPU firmware upgrade but i am hoping it is an eeprom with the program on it.
I do have a copy of the program and a lead but the old laptop we had LM90 on is long dead.
Thanks for your time!
Im a total PLC noob.
i suspect a dead 331 cpu. Unable to communicate with it using the LM90 start utility. But i could on another CPU so lead, comms and software ok on laptop.
Within the 331 CPU there are two sockets for chips.
One with CP3A3 written under it and another with the jumper selection under it.
My question is what is stored on the chip in the socket with CP3A3 under it. The chip itself has 395-045D (or o) 8.21 written on it. I think it may be CPU firmware upgrade but i am hoping it is an eeprom with the program on it.
I do have a copy of the program and a lead but the old laptop we had LM90 on is long dead.
Thanks for your time!