Write-In Of Word Data (1 Word) [Function Code:06H] - Teledyne 7500 Instruction Manual

Infrared gas analyzer communication functions (modbus)
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6.3 Read-out of read only word data [Function code: 06
Function
Max word number
code
write-in in one
message
06
1 word
H
(1) Message composition
Command message composition (byte)
Station No.
Function code
Write-in designate
No. (relative address)
Write-in word data
CRC data
(2) Function explanations
Designated word data is written in write-in designate No. Write-in data are transmitted from
master station in the order of upper and lower bytes.
(3) Message transmission (example)
The following shows an example of transmitting the "ZERO" key command to No. 1 station.
Key operation command Relative address: 07D0
Command message composition (byte)
Station No.
Function code
Write-in designate
No. (relative
address)
Write-in word data
CRC data
Relative data
address
0000
07D0
Upper
Lower
Upper
Lower
Lower
Upper
01
H
06
H
Upper
07
H
Lower
D0
H
Upper
00
}
H
ZERO
Lower
40
H
key
command
Lower
88
H
Upper
B7
H
Teledyne Analytical Instruments
]
H
Resister No.
006D
40001 40110
H
H
07D1
42001 42002
H
H
Response message composition (byte)
Station No.
Function code
Write-in designate
No. (relative address)
Write-in word data
CRC data
H
Response message composition (byte)
Station No.
Function code
Write-in designate
No. (relative
address
Write-in word data
CRC data
20
Contents
User setting
Operation
command
Upper
Lower
Upper
Lower
Lower
Upper
01
H
06
H
Upper
07
H
Lower
D0
H
Upper
00
H
Lower
40
H
Lower
88
H
Upper
B7
H

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