Advantech RS-100-RT Bedienungsanleitung PDF herunterladen (Seite 269)

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Chapter 4 Command Set 4-185

4080, 4080D

Chapter 4

$AA5N

Name Read Counter Start/Stop Status

Description Requests the addressed counter/frequency module to indicate

whether counter 0 or counter 1 is active.

Syntax $AA5N(cr)

$ is a delimiter character.

AA (range 00-FF) represents the 2-character hexadecimal

address of counter/frequency module that you want to interro-

gate.

N determines the counter for which the status should be

returned.

N = 0 represents counter 0

N = 1 represents counter 1

(cr) is the terminating character, carriage return (0Dh)

Response !AAS(cr) if the command is valid.

There is no response if the module detects a syntax or commu-

nication error, or if the specified address does not exist.

! is a delimiter character indicating the command was valid.

AA (range 00-FF) represents the 2-character hexadecimal

address of a counter input module.

S represents the counter status.

S = 0 indicates counting

S = 1 indicates not counting

(cr) is the terminating character, carriage return (0Dh).

Example command: $0650(cr)

response: !061(cr)

The command requests the counter/frequency module at

address 06 to return the status of counter 0. The addressed

module replies that counter 0 is counting

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