SMC Networks HECR Series Communications Manual

Communication Format
HECR 3-4
3.4 Calculation of Check Sum
Calculation range ---------------- From the second byte to ETX
when there is no ETX, add before check sum.
Calculating method---------------Take out the lower 1 byte of the total.
eg.) Set temperature to 30 deg.C (without unit specified)
STX 31H 33H 30H 30H 30H ETX 3FH 34H CR
Total F4H
eg.) Read Thermo-con internal sensor of unit No.2
SOH 32H 05H 32H 36H 39H CR
Total 69H
Note) Check sum is not ASCII code.
Data of UT and Check Sum
Character data
0…9
A
B
C
D
E
F
ASCII
30H…39H
41H
42H
43H
44H
45H
46H
UT and check sum
30H…39H(ditto)
3AH
3BH
3CH
3DH
3EH
3FH

SMC Networks HECR Series Specifications

General

Brand	SMC Networks
Model	HECR Series
Category	Chiller
Language	English