A.2.3 hmi/cpu communications events – GE Industrial Solutions Entellisys 5.0 User Manual User Manual
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Alarms and events description and system troubleshooting guide
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A
A.2.3 HMI/CPU Communications Events
Troubleshooting communications between an HMI and a CPU:
•
Check power to System Interface Ethernet Switch.
•
Check power and status of CPU.
•
Check communications link status. LEDs at the Ethernet ports on the HMI, switch, and CPU
should be green.
•
Check communications with redundant CPU by establishing it as the Primary (default) unit.
•
Verify that the IP address, subnet mask, and gateway address (if applicable) are compatible
between the CPU and HMI.
If this does not reveal the source of the problem, contact GE Service.
Table A-4 HMI/CPU Communications Related Events
Event
Description
Notes and Troubleshooting tips
HMI Internal Operations
HMI Resumed Communication
with [CPUA/B]
Logged when HMI establishes communications
with a CPU
HMI Lost Communication with
[CPUA/B]
Logged when HMI can no longer communicate
with a CPU
HMI couldn't Establish
Communication with [CPUA/B]
Logged when HMI cannot establish a
communications session with a CPU
IP Address for CPUA Set To
[n.n.n.n] From [n.n.n.n]
Logged to record a change in the IP address for the
given CPU
IP Address for CPUB Set To
[n.n.n.n] From [n.n.n.n]
Logged to record a change in the IP address for the
given CPU
Caution: Firmware Download
Failed for [CPU A/B/Messngr].
Unable to Enable Flash Pgm
Mode. Replace CPU
Contact GE Service for CPU replacement
Contact GE Post Sales Service (see
Caution: Firmware Download
Failed for [CPU A/B/Messngr].
Cannot Erase
Firmware.Replace CPU
Contact GE Service for CPU replacement
Contact GE Post Sales Service (see
Firmware Downloaded OK To
[CPU A/B/Messngr]
Logged upon successful completion of a CPU
firmware upgrade
Firmware Download Failed for
[CPU A/B/Messngr]
Contact GE Service for CPU replacement
Contact GE Post Sales Service (see
Caution: Firmware Download
to [CPU A/B/Messngr] Cannot
be Verified
Contact GE Service for CPU replacement
Contact GE Post Sales Service (see