Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario descargar pdf (Pagina 113)

Message Packet Formats

Chapter 5

5-34

Physical Write

This is a write command where the starting address is a PLC-3 physical

address. It is used to download to a PLC-3 from a computer. The

destination 1775-KA module will accept this command only after the

source station has successfully transmitted a shutdown request. Function

code for this command is 8.

TNSDST SRC CMD FNC

0F 08

PLC-3

PHYSICAL

ADDRESS

DATA

— Max. of 238 Bytes or 1

19 W

ords

TNSSTSCMD

SRCDST

TNSSTSCMD

SRCDST EXT

STS

Command

Packet:

Reply Format:

(EXT STS Byte Is Optional)

Format When Reporting an Error

Format When Successful Execution

Restart Request

This command is used by the computer to terminate an upload or a

download. The computer cannot issue this command until after it has

successfully completed an upload or download operation with the

destination station. This command causes the 1775-KA module to revoke

the upload and download privileges for the source computer station and to

initialize a PLC-3 start.

Format:

(EXT STS Byte Optional)

Format When Reporting an Error

TNSSTSCMD

SRCDST

TNSSTSCMD

SRCDST EXT

STS

Format When Successful Execution

Command Format:

TNSSTSCMD

SRCDST FNC

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 234 235

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Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 113

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