Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Instrukcja Użytkownika Pobierz pdf (Strona 127)

Message Packet Formats

Chapter 5

5-48

The STS and EXT STS bytes contain status and error code information.

For more information on these bytes, see the “Error Codes” section in this

document.

Read-Modify-Write

Use this command to take the contents of each location specified:

AND them with the appropriate AND mask.

OR them with the appropriate OR mask.

Restore them to their location, one word at a time.

The command parameters that follow the FNC byte in the example can be

repeated up to a length of 243 bytes.

TNSSTSCMD

SRCDST FNC

AND

MASK

PLC-5 SYSTEM

ADDRESS

Command

Format:

The PLC-5 system address must point to a word, and can be either a

logical binary address or a logical ASCII address with up to 51 bytes of

specification.

The AND and OR masks are two bytes each with the low byte first.

Format:

TNSSTSCMD

SRCDST EXT

STS

The STS and EXT STS bytes contain status and error code information.

For more information on these bytes, see the “Error Codes” section in this

document.

Set Processor Mode

Use this command to set the Operating mode of the processor at the next

I/O scan. The Operating mode is set to the mode indicated in the flag byte

(shown below). A no privilege error is returned if the requestor does not

1 2 ... 122 123 124 125 126 127 128 129 130 131 132 ... 234 235

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Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Instrukcja Użytkownika Strona 127