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2-52 TCP/IP Ethernet Communications for the Series 90™ PLC User's Manual
–
May 2002 GFK-1541B
2
States of the Series 90-70 CMM742 TCP/IP Ethernet Interface
Ethernet Interface
Initializing
(approx.10-20 seconds)
The Ethernet Interface is initialized by
- Powering-up the PLC
- Storing a new configuration to the PLC with changes for the Ethernet Interface
- Pressing the Restart pushbutton
- Issuing a Station Manager
RESTART,
LOAD
, or
MAINT
command
- Internal System Error occurring when Interface is Operational
Diagnostics
Pass?
Load
Request or
Software
Corrupted?
Waiting for
Configuration from
(max. 2 minutes)
PLC CPU
IP address =
0.0.0.0
Maintenance
Request or
Fatal System
Error?
Operational
Software Load Caused by
- Restart pushbutton pushed until bottom LED turns ON
- Station Manager
LOAD
command issued
- Detection of corrupt software
Waiting for IP Address Caused by
- Not configuring Interface using configuration software
- Configuring Interface with IP address = 0.0.0.0
- New CPU with no configuration
- CPU failure to communicate with Interface
Continue to Maintenance or Operational Caused by
- IP address received from network BOOTP server
- IP address entered by
BOOTP
Station Manager command
Maintenance Request Caused by
- Restart pushbutton pushed until bottom two LEDs turn ON
- Station Manager
MAINT
command issued
- Fatal System Error while in Operational State forced a restart
The LEDs are labeled from top to bottom as follows:
MODULE OK
LAN ONLINE
SERIAL ACTIVE
STATUS
The symbols used for the LEDs are defined as follows:
= OFF
z
= ON
= Slow Blink; multiple slow blining LEDs blink in unison
= Fast Blink
∗
= Traffic (blinks when there is traffic on the line)
The process symbols are defined as follows:
= Temporary condition; requires no intervention
= Decision point during power-up
= Interface State; normally the Interface remains
in a State unless there is user intervention
Symbols
z
z
/
∗
/
z
/
F
C
Hardware
A
Failure
Software
B
Load
Waiting for
D
IP Address
z
/
∗
/
Maintenance
z
/
∗
/
z
/
E
No
No
No
No
Yes
Yes
Yes
Yes
Done
IP Address Received
Maintenance
- Client and server capability disabled
- Uses default Advanced Parameters
- Permits changes to Advanced Parameters
Operational
- Full support for client and server capability
- Uses user defined Advanced Parameters
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