Siemens SENTRON ATC6300 - Page 174

MODBUS communication
11.9 Changing parameters by means of MODBUS
3KC ATC6300 transfer control device
172 Manual, 03/2018, L1V30535632002A-01
Step 3: Select parameter 03
Master
Function
= 6
Address
= 5002H (5002H - 0001H = 5001H)
Value
= 1 (01H)
01
06
50
01
00
01
08
CA
ATC
Function
= 6
Address
= 5002H (5002H - 0001H = 5001H)
Value
= 1 (02H)
01
06
50
01
00
01
08
CA
Step 4: Set the value 8
Master
Function
= 16 (10H)
Address
= 5004H (5004H - 0001H = 5003H)
Value
= 1 (01H)
Number of registers
= 1 (01H)
Number of bytes
= 8 (0008H)
01
10
50
03
00
01
02
00
08
F7
A0
ATC
Function
= 16 (10H)
Address
= 5004H (5004H - 0001H = 5003H)
Value
= 2 (02H)
01
10
50
03
00
01
E0
C9