Siemens SENTRON ATC6500 - Changing parameters by means of MODBUS

MODBUS communication
10.5 Reading the event log
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
203
Step 2: Set an index for the event to be read
Master
Function
= 6 (06H)
Address
= 5030H (5030H - 0001H = 502FH)
Value
= 1 (01H)
01
06
50
2F
00
01
68
C3
ATC
Function
= 6
Address
= 5030H (5030H - 0001H = 502FH)
Value
= 1 (01H)
01
06
50
2F
00
01
68
C3
Step 3: Read the event
Master
Function
= 4 (04H)
Address
= 5030H (5030H - 0001H = 502FH)
Number of registers
= 86 (56H)
01
04
50
31
00
2B
F0
DA
ATC
Function
= 4 (04H)
Address
= 5030H (5030H - 0001H = 502FH)
Number of bytes
= 86 (56H)
String
2017/10/05; 12:49:50; E0500, REMOTE CONTROL: START COMM.
OFF