I have a recurring problem with my PLC at a facility. First some details:
I upgraded an existing SLC 5/04 PLC with a 1747-AENTR module and a new CompactLogix L33ER with a number of Compact I/O modules added for expansion. The CompactLogix is connected to a N-TRON 7506-GX2 fiber switch via Cat6 UTP, then 200m of multimode fiber to a second 7506-GX2, and then Cat6 to the 1747-AENTR in the old SLC 5/04 rack. Everything works great aside from the fact that the CompactLogix PLC experiences a major fault at irregular intervals at least once daily. The fault is a loss of communication with I/O module.
(Type 03) I/O Fault
(Code 16) I/O module connection failed on requested module
Port: Ethernet
Module: <module name>
Error: Connection Timed Out
The fault has occurred on a variety of cards in the SLC rack. Each card is configured to cause a major fault on loss of communication. Te RPI of all the cards in the SLC rack range from 250 ms for discrete cards to 500 ms for analog cards.
CompactLogix firmware is 24.0, AENTR module firmware is 2.1
Have any of you experienced anything similar? Any insight as to what may be causing this problem?
Thank you
-Robert
I upgraded an existing SLC 5/04 PLC with a 1747-AENTR module and a new CompactLogix L33ER with a number of Compact I/O modules added for expansion. The CompactLogix is connected to a N-TRON 7506-GX2 fiber switch via Cat6 UTP, then 200m of multimode fiber to a second 7506-GX2, and then Cat6 to the 1747-AENTR in the old SLC 5/04 rack. Everything works great aside from the fact that the CompactLogix PLC experiences a major fault at irregular intervals at least once daily. The fault is a loss of communication with I/O module.
(Type 03) I/O Fault
(Code 16) I/O module connection failed on requested module
Port: Ethernet
Module: <module name>
Error: Connection Timed Out
The fault has occurred on a variety of cards in the SLC rack. Each card is configured to cause a major fault on loss of communication. Te RPI of all the cards in the SLC rack range from 250 ms for discrete cards to 500 ms for analog cards.
CompactLogix firmware is 24.0, AENTR module firmware is 2.1
Have any of you experienced anything similar? Any insight as to what may be causing this problem?
Thank you
-Robert