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6
Chapter
Example of Transmitting a Message (Internal Calculation Data)
The message is composed as follows when reading the PV input value from station number 1.
• PV value relative address: 0000H Data number: 01H
■ Meaning of Read Data
Word Data Contents 03 46H = 838 (8.38% FS)
When the input range is 0 to 400°C
PV = 33.5°C (= 8.38FS x 400 (input range width))
Example of Transmitting a Message (For Engineering Unit)
The message is composed as follows when reading the PV value from station number 1.
• PV value relative address: 03E8H Data number: 01H
■ Meaning of Read Data
Word Data Contents 01 4FH = 335
When the decimal point position = 1
PV = 33.5°C
Refer to
For more about the internal calculation value, engineering unit,
and decimal point see
"Chapter 7, Address Map and Data Configuration" (p. 39).
Refer to
For more about the internal calculation value, engineering unit,
and decimal point see
"Chapter 7, Address Map and Data Configuration" (p. 39).
Master Slave
Command Message (bytes)
Station No. 01H
Function Code 04H
No. to Start Reading
(Relative Address)
Upper number 00H
Lower number 00H
No. of Bits to Read
Upper number 00H
Lower number 01H
CRC Data
Upper number 31H
Lower number CAH
Response Message (bytes)
Station No. 01H
Function Code 04H
No. of Bytes to Read 02H
First Word Data
Contents
Upper number 03H
Lower number 46H
CRC Data
Upper number 38H
Lower number 32H
Master Slave
Command Message (bytes)
Station No. 01H
Function Code 04H
No. to Start Reading
(Relative Address)
Upper number 03H
Lower number E8H
No. of Words to Read
Upper number 00H
Lower number 01H
CRC Data
Upper number B1H
Lower number BAH
Response Message (bytes)
Station No. 01H
Function Code 04H
No. of Bytes to Read 02H
First Word Data
Contents
Upper number 01H
Lower number 4FH
CRC Data
Upper number F9H
Lower number 54H
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