Advantech RS-100-RT Instrukcja Użytkownika Pobierz pdf (Strona 277)

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Chapter 4 Command Set 4-193

4080, 4080D

Chapter 4

$AA0H

Name: Read Minimum Input Signal Width at High Level.

Description: Read the minimum input signal width at high level for a

specified counter/frequency module.

Syntax: $AA0H(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.

0H identifies the Read Minimum Input Signal Width at High

Level command

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

Response: !AA(data)(cr) if the command is valid.

?AA(cr) if an invalid operation was entered.

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.

? is a delimiter character indicating the command was invalid.

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

address of a counter/frequency input module.

(data) is the minimum width at high level. The unit is µsec

(microseconds) and its resolution is 1 µsec. The format is a five

digit integer that ranges from 2 µsec to 65535 µsec.

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

Example: command: $130H(cr)

response: !1300020(cr)

The command requests the counter/frequency module at

address 13 to read its minimum input signal width at high

level. The addressed module replies that its minimum input

signal width at high level is 20 µsec.

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