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Teledyne 7600 - Infrared gas analyzer - communication manual User Manual

Page 18

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Teledyne Analytical Instruments

18

6.2 Read-out of read only word data [Function code: 04

H

]


Function
code

Max word number
read-out in one
message

Relative data
address

Resister No.

Contents

0000

H

00BD

H

30001 30190

Measurement
value and status

04

H

64 words

0425

H

0447

H

31062 31096

Fixed setting



(1) Message composition

Command message composition (byte)

Response message composition (byte)

Station No.

Station No.

Function code

Function code

Upper

Read-out byte number

Read-out start
No. (relative
address)

Lower

Upper

Upper

Content of the first
word data

Lower

Read-out word
number

Lower

Upper

Lower

CRC data

Upper

Contents of the
next word data

Lower

Upper

Contents of the
next word data

Lower
Lower

CRC data

Upper


* Arrangement of read-out word data

MSB

LSB

Upper byte of contents of the first word data
Lower byte of contents of the first word data
Upper byte of contents of the next word data
Lower byte of contents of the next word data

Upper byte of contents of the last word data
Lower byte of contents of the last word data


(2) Function explanations

Word data of continuous word numbers from the read-out start No. can be read. Read-out
word data are transmitted from the slave station in the order of upper and lower bytes.

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