GE GEFanuc Automation Programmable Control Products TCP/IP Ethernet Communications for the Series 90t-70 PLC GFK-1004B User Manual

Page 193

6-22

TCP/IP Ethernet Communications User’s Manual – January 1996

GFK-1004B

Table 6-10. Exception Log Event Codes - Continued

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Log Event

Code

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Possible Cause and Resolution

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Event “12”
TCP events

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This event is logged by the (Transmission Control Protocol (TCP) layer.
Entry 1

will always be zero.

Entry 2

identifies the type of error:

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1 “LAN

I/F

capacity

exceeded; discarded request”

Unable to allocate a TCB in tcpmopen. Entry 3 contains the endpoint
identifier number used in the tcpmopen call.

“LAN system-software fault; resuming”
Internal error: NULL event function pointer used in call to tcpmopen. Entry 3
contains the endpoint identifier number used in the tcpmopen call.

“LAN system-software fault; resuming”
Internal error: Lqsize size parameter of tcpmopen call used intcpmopen call is
invalid. Entry 3 contains the endpoint identifier number used in the
tcpmopen call. Entry 4 contains the offending lqsize parameter value.

“LAN system-software fault; resuming”
Internal error: Invalid itcb parameter in tcpaccept call. Entry 4 contains the
offending itcb parameter value.

“LAN system-software fault; resuming”
Internal error: Empty listen queue when tcpaccept was called.

“LAN system-software fault; resuming”
Internal error: Invalid itcb parameter used in tcpattach call. Entry 3 contains
the endpoint identifier number used in call. Entry 4 contains the offending
itcb parameter value.

“LAN system-software fault; resuming”
Internal error: TCB not in ESTABLISHED state when tcpattach was
called.Entry 3 contains the endpoint identifier number used in call. Entry 4
contains a code indicating the current state of the TCP connection.Valid state
codes are listed in the description of Entry 2 = f.

“LAN system-software fault; resuming”
Internal error: Illegal parameter specified in call to tcpread. Entry 3 contains
an internal error code of interest to developers.

“LAN system-software fault; resuming”
Internal error: TCB not in ESTABLISHED state when tcpread was called.
Entry 4

contains a code indicating the current state of the TCP connection.

Valid state codes are listed in the description of Entry 2 = f. Entry 5 contains
an internal error code of interest to developers.

“LAN system-software fault; resuming”
Internal error: Illegal parameter specified in call to tcpwr. Entry 3 contains an
internal error code of interest to developers.

“LAN system-software fault; resuming”
Internal error: TCB not in ESTABLISHED state when tcpwr was called.

“LAN system-software fault; resuming”
Internal error: Invalid itcb parameter used in tcpclose call. Entry 3 contains
the offending itcb parameter value.

“LAN system-software fault; resuming”
Internal error: TCP function called before TCP task was initialized.

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