YOKOGAWA IR202, User Manual

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<4. DETAILS OF MESSAGE>
4-6
IM 11G02Q02-01EN 2nd Edition : Sep. 04, 2020-00
(3) Message transmission (example)
The following shows an example of writing the Ch1 (1st component) alarm settings to No. 1
station.
Ch1 range-1 high alarm setting = 1388
H
(= 5000D)
Ch1 range-1 low alarm setting = 000A
H
(= 10D)
Ch1 range-2 high alarm setting = 03E8
H
(= 1000D)
Ch1 range-2 low alarm setting = 000A
H
(= 10D)
Ch1 range-1 high alarm setting Relative address: 0023
H
Data number: 04
H
Command message Response message
Station No. 01
H
Station No. 01
H
Function code 10
H
Function code 10
H
Write-in start No.
Upper 00
H
Write-in start No.
Upper 00
H
Lower 23
H
Lower 23
H
Write-in word
number
Upper 00
H Write-in word
number
Upper 00
H
Lower 04
H
Lower 04
H
Write-in byte number 08
H
CRC data
Lower 30
H
First write-in word
data
Upper 13
H
Upper 00
H
Lower 88
H
Next write-in word
data
Upper 00
H
Lower 0A
H
Next write-in word
data
Upper 03
H
Lower E8
H
Last write-in word
data
Upper 00
H
Lower 0A
H
CRC data
Lower E2
H
Upper A6
H
Since the transmission data do not include a decimal point, data of 500.0 is transmitted as
“5000”.
For transmission format of each data, refer to “5. ADDRESS MAP AND DATA FORMAT”.