Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Uživatelský manuál stáhnout pdf (Strana 184)

Message Formats

Appendix A

A22

Command Format:

FNC

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

Reply Format:

A. Format when the command was successfully executed

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

B. Format when reporting an error

ETX

ST S

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

Where the extended status byte is optional.

Download Request

A computer can use this command to inform the 1775–KA module that it

wants to do a download. If the 1775–KA module grants the download

privilege, the computer may begin issuing privileged writes. You should,

however, issue a shutdown command first. If a different station already

has the download privilege, the second station is denied the privilege.

The function code is 5.

Command Format:

FNC

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

1 2 ... 179 180 181 182 183 184 185 186 187 188 189 ... 238 239

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