SMC Networks HRR012-A*-20 Series Operation Manual

HRX-OM-W004
Chapter 3 Serial communication
HRR Series 3.10 Checksum calculation method
3-11
(Example 1) The least significant bit was a 1.
(Example 2) The least significant bit was a 0.
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Calculation example
Example) Change circulating fluid set temperature 25.4 ° C
Sending data 0106000B00FE
○Slave Address : No.1
○Function：No.06
○Writing address：000Bh
○Writing data：00FEh
Aata No. 1st
value
2nd
value
3rd
value
4th
value
5th
value
6th
value
Data
contents
0001h 0006h 0000h 000Bh 0000h 00FEh
0 00 00000
0
00 0 0 000 0
…
Add 0 to the top
If it is 0, do not ExOR
…
1 bit shift in the lowest direction
0000 0001
0 000 00001
…
…
1 bit shift in the lowest direction
Add 0 to the top
Execute ExOR if 1

SMC Networks HRR012-A*-20 Series Specifications

General

Brand	SMC Networks
Model	HRR012-A*-20 Series
Category	Chiller
Language	English