Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Manual de usuario descargar pdf (Pagina 191)

Message Formats

Appendix A

A29

Set NAKs

Use this command to set the maximum number of NAKs that the station

interface module will accept per message transmission. Put the number in

the DATA field. The default setting for the KE/KF module is 3 NAKs per

transmission.

Command Format:

FNC

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

DATA

Reply Format:

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

Set Timeout

Use this command to set the maximum amount of time that the station

interface module will wait for an acknowledgment to its message

transmission. The setting is expressed as the number of cycles of an

internal clock, where 40 cycles equals 1 second. Put the number of

desired cycles in the DATA field. The default setting for the KE/KF

module is 128 cycles, or about 3 seconds.

Command Format:

FNC

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

DATA

Reply Format:

DLE

SRC

STX DST C

TNS

DLE ETX

BCC

1 2 ... 186 187 188 189 190 191 192 193 194 195 196 ... 238 239

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