Teledyne 7500 Instruction Manual page 22

(2) Function explanations
Word data of continuous word number is written from write-in start address. Write-in word
data are transmitted from master station in the order of upper and lower bytes.
(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
CH1 range-1 low alarm setting = 000A
CH1 range-2 high alarm setting = 03E8
CH1 range-2 low alarm setting = 000A
CH1 range-1 high alarm setting
Command message composition (byte)
Station No.
Function code
Write-in word number
Write-in byte number
First write-in word data
Next write-in word data
Next write-in word data
Last write-in word data
CRC data
Since the transmission data can not include a decimal point, data of 500.0 is transmitted as
"5000".
For transmission format of each data, refer to the Address map (Chapter 7).
(= 5000
H
(= 10 )
H D
(= 1000
H
(= 10 )
H D
Relative address: 0023
01
H
10
H
Upper 00
H
Lower 04
H
08
H
Upper 13
H
Lower 88
H
Upper 00
H
Lower 0A
H
Upper 03
H
Lower E8
H
Upper 00
H
Lower 0A
H
Lower E2
H
Upper A6
H
22
Teledyne Analytical Instruments
)
D
)
D
Data number: 04
H
Response message composition (byte)
Station No.
Function code
Write-in start No.
Write-in word number
CRC data
H
01
H
10
H
Upper 00
H
Lower 23
H
Upper 00
H
Lower 04
H
Lower 30
H
Upper 00
H