Yaskawa Modicon 800 Series Remote I/O Network for use on M Manual de usuario descargar pdf (Pagina 21)

OPERATION

PLC Gateway Status

5/24/96

display meaning

PUPn Displayed after the n = 1 During this stage the PLC

gateway has gateway broadcasts a power-up

successfully message across the MicroTrac

completed LAN. Also, if the PLC

initialization and is gateway has returned to the

ready to receive PUP sequence because of an

messages from the "ECOM" error (see ECOM

network. message description) and

communication has been

re-established, then internal

tables are also cleared.

n = 2 During this stage, the PLC

gateway is decoding allocation

messages (types 10, 11, 12, 13

and 2D) and setting up

simulated drops on the

interface card. A list of all

the drops requested via the

allocation messages is also

made. If after four seconds

no allocation messages are

received, then the PLC

gateway proceeds to the next

step.

n = 3 During this stage the PLC

gateway checks each drop on

its list and makes sure the drop

has received configuration

information form the Modicon

PLC. If not, an "ECdd"

message is displayed, where

"dd" is the drop number of the

drop that has not responded.

If all drops on the list are

configured, then the gateway

issues another power-up

message across the network

and enters the RUN stage.

PLC Gateway

Status

(continued)

RD 3004-20

1 2 ... 16 17 18 19 20 21 22 23 24 25 26

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Yaskawa Modicon 800 Series Remote I/O Network for use on M Manual de usuario Pagina 21

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