Rockwell-automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command Manual do Utilizador descarregar pdf (Página 114)

7–27Communication Commands

Publication

17706.5.16 - October 1996

set timeout

Sets the maximum amount of time that the asynchronous interface

module waits for an acknowledgment to its message transmission.

The setting is expressed as the number of cycles of an internal clock.

(For example, 40 cycles equals 1 second for the 1770-KF2.)

CMD

STS

FNC

TNS DATA

CMD

STS

TNS

DST SRC

SRC DST

See

the following table for settings and defaults for the module you are

setting. Put the number of desired cycles in the DA

A field.

DATA:

Module

Cycles/Sec Default

1770KF2 40

128 cycles (approx. 3 sec)

1771KE/KF 40

128 cycles (approx. 3 sec)

1771KG 38

38 cycles (approx. 1 sec)

1771KGM 63

63 cycles (approx. 1 sec)

1775KA 40

128 cycles (approx. 3 sec)

1785KE 29

128 cycles (approx. 4.5 sec)

set variables

Sets the maximum ENQs, NAKs, and timeout all at once.

This command is a combination of the set NAKs, set CPU mode, and

set timeout commands.

CMD

STS

FNC

TNS

CMD

STS

TNS

DATA

(3 bytes)

DST SRC

SRC DST

DAT

A - Put the timeout setting in the first byte, the NAKs setting in the second byte, and the

ENQs in the third byte.

• PLC2

• PLC3

• PLC5

• PLC2

• PLC3

• PLC5

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 250 251

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