Teledyne 7600 - Infrared gas analyzer - communication manual User Manual
Page 18

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.