GE GFK-1004B user manual Using this Chapter, Ethernet Interface Diagnostic Tools

6

Also, when displaying a PLC Fault Table entry on the Logicmaster 90-70, striking <CTRL -F> will display an additional line of numeric data on the Message Line (third line from the top). For GEnet Ethernet Interfaces the leftmost 16 digits of the long string of digits on the right half of the Message Line show the corresponding GEnet log Events and Entries 2, 3, and 4 (in that order). This information can be used to refer directly to detailed fault descriptions in this chapter (Table 6-10) without using a GSM.

For detailed information about these tools, refer to the appropriate references in the table below.

Table 6-1. Ethernet Interface Diagnostic Tools

Diagnostic Tool	Description	Reference
LEDs	Visualobservation of Ethernet Interface	Chapters 2, 6
Log	Access from Station Manager	Chapters 5, 6
Tallies	Access from Station Manager	Chapter 5
PLC Fault Table	Ethernet Interface exceptions logged with CPU	Chapter 6
		AlsoGFK-0265

Using this Chapter

This chapter contains five troubleshooting sections that correspond to the five main states of the Ethernet Interface.

If you have a problem, first identify in which state the problem occurred. Then, go to the corresponding section in this chapter for further information.

The following tables are included to assist you in troubleshooting.

HLED Display Codes - Tables 6-2 through 6-6.

HTroubleshooting with ONLINE LED OFF - Tables 6-7.

HTroubleshooting with ONLINE LED ON - Table 6-8.

HLog Events Codes - Tables 6-9 and 6-10.

The following information indicates the state of the Ethernet Interface:

1.Power-Up State - The board is executing power-up diagnostics.

H The MODULE OK LED is BLINKING fast or OFF.

H The ONLINE LED is OFF.

H The STATUS OK LED is BLINKING or OFF.

In the power-up state, the Station Manager and the Restart pushbutton are inoperative.

2.Soft Switch Entry State - Soft Switch configuration may be (in some cases must be) entered via the Logicmaster 90-70 Configurator or the Ethernet Interface local Station Manager (when the Ethernet Interface is not configured in the CPU).

H The MODULE OK LED is BLINKING slowly.

H The ONLINE LED is OFF.

H The STATUS OK LED is OFF.

6-2 TCP/IP Ethernet Communications User's Manual ± January 1996 GFK-1004B