Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Instrukcja Użytkownika Pobierz pdf (Strona 98)

Message Packet Formats

Chapter 5

5-19

Set NAKS

This command sets 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 KF2 module is 3 NAKs per

transmission.

Command

Format:

Reply Format:

TNSSTSCMD

06

SRCDST

TNSSTSCMD

46

SRCDST

FNC

05

DATA

Set Timeout

This command sets 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 KF2 module is 128 cycles, or

about 3 seconds.

Command

Format:

Reply Format:

TNSSTSCMD

06

SRCDST

TNSSTSCMD

46

SRCDST

FNC

04

DATA

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