Schneider Automation Modicon Quantum Ethernet Betriebsanweisung PDF herunterladen (Seite 67)

Maintenance

840 USE 115 00 Version 1.0

If the

Coll

LED is flashin

, the module is reportin

collisions on the Ethernet

network. While such collisions are normal, the fre

uenc

of the flashes is an

indication of the volume of traffic on the network. The flashes ma

be so fre

uent

that the LED appears to be shinin

steadil

. Heav

traffic will slow communications.

If response time is important to

our application,

ou should consider se

mentin

our network to reduce the fre

uenc

of collisions.

6.1.8 Application LED

If the module crashes, it will note the reason in a lo

. If the module is able to

recover, the

Appl

LED will li

ht, indicatin

that an entr

has been made in the error

. To learn how to read and clear the error lo

, refer to the section below.

6.1.9 Readin

and Clearin

the Error Lo

If the

Appl

indicator is lit, entries have been made in the error lo

. The lo

hold

up to 1023 entries. If the error lo

is full, the

Fault

indicator will remain on and the

module will be unable to recover until the lo

is cleared.

You ma

read the error lo

while the controller is runnin

or stopped, usin

the ER-

RLOG utilit

. However, if

ou plan to clear the error lo

ou must stop the controller

first. Durin

the pro

ram, ERRLOG will ask

ou whether

ou want to stop the con-

troller. If

ou respond

es, it will stop and restart the controller for

ou.

To read the error lo

, at the DOS prompt in the appropriate director

, t

pe:

ERRLOG <routing path> <slot> [/d] [/sxx] [/ny]

where

is the Modbus Plus address of the Quantum PLC

<slot>

is the slot number of the Ethernet web embedded server module.

[/d]

is optional, to enable debu

messa

es. Default is no debu

[/sxx]

is optional and specifies the software interrupt to use, xx in

hexadecimal. The default is 5c.

[/ny]

is optional and specifies the Modbus Plus adapter number to use,

CAUTION

PROCESS INTERRUPTION

Do not stop the controller unless it is safe to stop the operations it is controllin

. When a

controller is stopped, all operations under its control will also stop.

Failure to observe this precaution can result in injury or equipment damage.

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