6

Table 6-10. Exception Log Event Codes - Continued

 

Log Event

 

 

 

 

 

Code

 

Possible Cause and Resolution

 

 

 

Eventª8º

36

ªModule state doesn't permit Comm±Req; request discardedº

 

 

 

PLCDriver

 

COMMREQs are not allowed if no Soft Switches have been received.

 

 

 

events

37 ªLAN System-Software Fault; Resumingº

 

 

 

(Continued)

 

 

 

 

A task that has not registered with the Backplane driver is attempting to

 

 

 

 

 

 

 

 

 

 

send messages to the PLC.

 

 

 

 

38

(Not reported to CPU Fault Table)

 

 

 

 

 

A Backplane driver user's attempt to send a message to the PLC failed.

 

 

 

 

 

Entry 3 indicates the error code returned.

 

 

 

 

39

(Not reported to CPU Fault Table)

 

 

 

 

 

An attempt to release CPU text buffers failed. Entry 3 indicates the status

 

 

 

 

 

returned from the MailboxUtilities.

 

 

 

 

40

(Not reported to CPU Fault Table)

 

 

 

 

 

Backplanedriver's attempt to send a message to the PLC failed. Entry 3

 

 

 

 

 

indicates the status code returned from the CPU. See Tables 4±5 through

 

 

 

 

 

4-7 for the meaning of this status code.

 

 

 

 

41

(Not reported to CPU Fault Table)

 

 

 

 

 

Backplane driver could not find a state machine for an unsolicited message.

 

 

 

42

(Not reported to CPU Fault Table)

 

 

 

 

 

Backplane driver could not find a state machine for a response message.

 

 

 

 

43

(Not reported to CPU Fault Table)

 

 

 

 

 

Backplane driver detected that the CPU firmware revision is too low for

 

 

 

 

 

use with TCP/IP configuration mode (soft switches). You must either

 

 

 

 

 

configureyourEthernet InterfaceinMMS-ETHERNETconfiguration

 

 

 

 

 

mode or upgrade your CPU firmware. Entry 4 indicates your CPU's

 

 

 

 

 

firmware revision level while Entry 5 indicates the revision level needed

 

 

 

 

 

for TCP/IP configuration mode. Unpredictable operation will result if you

 

 

 

 

 

operate with this error.

 

 

 

Event ªbº

This event is logged when the MMS Service Agent encounters an unexpected

 

 

 

ServiceAgent

event.

 

 

 

events

 

 

 

 

 

 

Entry 2 of the logged event contains one of the following errorcodes.

 

 

 

 

 

 

 

 

1

ªLANSystem-SoftwareFault;Resumingº

 

 

 

 

 

 

 

 

 

Could not find the index into the Data Transfer Table. This error can occur

 

 

 

 

 

when sending any fault table information to the PLC CPU.

 

 

 

 

2

ªLANSystem-SoftwareFault;ResumingºBackplanedriverreturned a bad

 

 

 

 

 

 

 

 

 

status. Entry 3 contains status code.

 

 

 

 

3

ªBackplane Communications with PLC Fault;LostRequestº

 

 

 

 

 

 

 

 

 

CPUNacked a request. Entry 3: Major status. Entry 4: Minor Status.

 

 

 

 

 

These are error codes returned by the CPU. See Table 16 and 17 in

 

 

 

 

 

GFK-0582B.

 

 

 

 

4

ªBackplane Communications with PLC Fault;LostRequestº

 

 

 

 

 

A read request returned an unexpected amount of data.Entry 3 contains

 

 

 

 

 

the actual data size; Entry 4 contains the expected data size.

 

 

 

 

5

ªLANSystem-SoftwareFault;ResumingºUnexpectedªMore

 

 

 

 

 

 

 

 

 

followsº condition was indicated by the Backplane driver.

 

 

 

 

6

ªBackplane Communications with PLC Fault;LostRequestº

 

 

 

 

 

 

 

 

 

Unexpected Unsolicited message type was received.Entry 3 contains the

 

 

 

 

 

message type code.

 

 

 

 

7

ªBackplane Communications with PLC Fault;LostRequestº

 

 

 

 

 

 

 

 

 

CPUNACKed a request 3 times due to congestion. Entry 3

 

 

 

 

 

contains the status code; Entry 4 contains additional status data.

 

 

GFK-1004B

Chapter 6 Troubleshooting

6-17

Page 188
Image 188
GE GFK-1004B user manual Exception Log Event Codes