Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Manual de usuario descargar pdf (Pagina 197)

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Publication AG-UM008C-EN-P - February 2005

Configuring SLC 500 Processors with 1747-KE Interface Modules 5-11

3. Remove interface module. Place the module in RUN mode by

setting JW4 as follows:

4. Insert module. Power the chassis.

For details about alternatively configuring the series B interface

module from the SLC through the backplane, see the DH-485/RS-232C

Interface Module User Manual, publication 1747-6.12.

Messaging

SLC 5/01 processors and the fixed controllers can only respond to a

master station. These processors cannot initiate messages on their

own.

Messaging in an SLC 5/02 processor can occur between:

• a master station and a remote station. (For more information see

the chapter pertaining to the master device you are using.)

• a remote station and its master station (see Polled

Report-by-Exception).

• between two processors connected via a point-to-point link.

Polled Report-by-Exception

A remote station can gather information from the I/O points it is

responsible for and can send any anomalous readings to the master

station. To do this, write logic in the remote station’s processor to

monitor certain conditions and send the data in an MSG instruction to

the master station.

Figure 5.7 is an example MSG instruction and

control block that an SLC 5/02 processor in a remote station can send

to a PLC-5 master station.

Run Mode Setting

1 2 ... 192 193 194 195 196 197 198 199 200 201 202 ... 419 420

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