YOKOGAWA IR202, User Manual

Page: 20 / 45

<4. DETAILS OF MESSAGE>
4-1
IM 11G02Q02-01EN 2nd Edition : Sep. 04, 2020-00
4. DETAILS OF MESSAGE
4.1 Read-out word data (Function code : 03
H
)
Function
code
Max.word number read-out
in one message
Relative data
address
Register No. Contents
03
H
64 word 0000-009D
H
40001-40158 User setting
(1) Message composition
Command message composition (byte) Response message composition (byte)
Read-out word number x 2
Station No Station No
Function code Function code
Read-out byte number
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
* Arrangement of read-out word data
MSB LSB
CRC data
CRC data
Read-out word
number
Contents of the
last word data
Contents of the
next word data
Contents of the
first word data
Upper
Lower
Upper
Lower
Upper
Lower
Lower
Upper
Upper
Lower
Upper
Lower
Lower
Upper
Read-out start No.
(relative address)
1 to 60
(2) Function
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.