GE GFK-1541B manual Pass?

2

States of the Series 90-30 CPU374 with Embedded TCP/IP Ethernet Interface

Ethernet Interface

Initializing 1



 (approx. 2-6 seconds)

1The Ethernet Interface is initialized by

ƒPowering up the PLC

ƒStoring a new configuration to the PLC with changes for the Ethernet Interface

ƒPressing the Restart pushbutton

ƒIssuing a Station Manager RESTART command

ƒInternal System Error occurring when Interface is operational

	No		A
Diagnostics			Hardware
		
Pass?			Failure
Yes
Load	Yes 2	œ	B
Request or			Software
Software		œ
Corrupted?		œ	Load

No

C

œWaiting for

 Configuration from

 PLC CPU (max. 2 seconds)

Done

			Yes 3 œ	D
	IP address			∗/ Waiting for
	= 0.0.0.0		/
			z	IP Address
			œ
		No	IP Address
			Received 4
z	E
z/ ∗/ Operational

z/

Operational

ƒFull support for client and server capanility

ƒUses user-defined Advanced Parameters

2Software Load caused by

ƒPressing the Restart pushbutton

ƒDetection of corrupt software

3Waiting for IP Address caused by

ƒNot configuring Interface using configuration software

ƒConfiguring Interface with IP Address = 0.0.0.0

ƒNew CPU with no configuration

ƒCPU failure to communication with Interface

4Continue to Operational State caused by

ƒ IP Address received over network

Symbols

The LEDs are labeled from top to bottom as follows:

EOK

LAN

STAT

The symbols use for the LEDS i the chart are:

OFF

zON

œSlow Blink; multiple slow blinking LEDS blink in unison

Fast Blink

∗Traffic (blinks when there is traffic on the line.

The process symbols use in this chart are:

Temporary condition; requires no intervention

Decision point during powerup

Interface State; normally the Interface remains in a state unless there is user intervention.

2-38 TCP/IP Ethernet Communications for the Series 90™ PLC User's Manual– May 2002 GFK-1541B