Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Manuale Utente Scaricare il pdf (Pagina 94)

Error Reporting

Chapter 7

75

Access to Error Block

The error block retains its data even after the message procedures are

done executing. It is re–initialized with each execution of a MSG

instruction in the PLC–3 ladder diagram program.

The extended address for the beginning of the error block file is

$E2.5.nn.4.0.

where “nn” is the thumbwheel number of the 1775–KA module. You can

access this error block by any one of the following means:

Displaying it through the front panel of the PLC–3 controller

Using the data monitor mode of the Industrial Terminal (cat. no.

1770–T4)

Using the move status (MVS) command in the PLC–3 ladder diagram

program

Using the I/O Scanner–Message Handling Module (cat. no. 1775–S4B)

Using the 1775–KA module

Using the 1775–GA

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Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Manuale Utente Pagina 94