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the COMMREQ function and then check for a
3.A status code of 1 in the low byte and 0 in the high byte indicates that the request was successful. All other
The following tables list the error codes that are reported in the COMMREQ Status word after the execution of a COMMREQ function. These codes also may appear in Word 1 of the Detailed Channel Status words.
Table 4-4. Major Error Codes
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| Error Status | Major Error Description |
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| Hexadecimal |
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| 01H | Successful Completion. (This is the expected completion value in |
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| the COMMREQ Status word.) |
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| 02H | InsufficientPrivilege at server PLC. For a Series |
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| minor error code contains the privilege level required for the service |
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| request. |
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| 04H | Protocol Sequence Error. The server CPU has received a message that is |
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| out of order. Call GE FanucAutomationforassistance. |
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| 05H | Service Request Error at server PLC. The minor error code contains the |
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| specificerror code. See table of Minor Error codes below. |
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| 06H | IllegalMailbox Type at server PLC. Servicerequestmailbox type is ei- |
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| ther undefined or unexpected. Call GE FanucAutomationforassistance. |
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| 07H | The server PLC CPUs Service Request Queue is full. The client should |
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| retry later. It is recommended that the client wait a minimum of 10 mil- |
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| liseconds before sending another servicerequest. |
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| 0bH | IllegalService Request. The requested service is either not defined or |
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| not supported at the server PLC. (This value is returned in lieu of the |
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| actualservice request error (01h), to avoid confusion with the normal |
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| successfulCOMMREQcompletion.) Call GE FanucAutomation for assis- |
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| tance. |
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| 11H | SRTP Error Codes at server. An error was detected at the SRTP server. |
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| See table of Minor Error codes below. |
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| 82H | InsufficientPrivilege at client PLC. For Series |
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| ror code contains the privilege level required for the servicerequest. |
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| 84H | Protocol Sequence Error. The CPU has received a message that is out |
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| of order. Call GE FanucAutomationforassistance. |
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| 85H | Service Request Error at the client PLC. The minor error code contains |
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| the specific error code. See table of Minor Error codes below. |
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| 86H | IllegalMailbox Type. Servicerequestmailbox type is either undefined |
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| or unexpected. Call GE FanucAutomationforassistance. |
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| 87H | The client PLC CPUs Service Request Queue is full. The client should |
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| retry later. It is recommended that the client wait a minimum of 10 mil- |
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| liseconds before sending another servicerequest. |
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| 8bH | IllegalService Request. The requested service is either not defined or |
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| not supported. (This value is returned in lieu of the actual service re- |
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| quest error (01h), to avoid confusion with the normalsuccessful |
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| COMMREQcompletion.). Call GE FanucAutomationforassistance. |
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| 90H | Client API error. See table of Minor Error codes below. |
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TCP/IP Ethernet Communications User's Manual ± January 1996 |
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