Siemens SENTRON PAC RS485 - Page 77

Application examples
12.1 Examples of MODBUS communication
PAC RS485
Manual, 02/2008, A5E02091800B-01
77
Saving parameters
Table 12-7 Requirement
Address FC From register Bytes to be written CRC
01 10 C3 51 00 10 20 00
00 00 00 00
00 00 00 00
00 01 90 00
00 01 90 00
00 00 00 00
00 00 05 00
00 00 05 00
00 00 00
6F E0
Explanation:
From offset 50001:
connection type
Table 12-8 Response - confirmation of the slave
Address FC From register Number of written registers CRC
01 10 C3 51 00 10 AC 50
Explanation:
From offset 50001:
connection type
16 registers
Read Device Identification
Table 12-9 Requirement
Address FC MEI type ReadDevID code and object ID to be
read
CRC
01 2B 0E 01 00 70 77
Explanation:
14 ReadDevID Code: 01
Object ID: OID0
Table 12-10 Response - confirmation of the slave
Address FC MEI type Bytes read CRC
01 2B 0E 01 01 00 00
03 00 0A 53
49 45 4D 45
4E 53 20 41
47 01 07 50
41 43 33 32
30 30 02 11
46 57 20 56
02 00 04 20
2F 20 42 4C
20 56 01 00
00
41 E8