Siemens SENTRON PAC3120 - MODBUS Standard Device Identification with the Function Code 0 X2 B

Appendix
A.1 Modbus
PAC3120 and PAC3220
Equipment Manual, 10/2019, L1V30425208F-01
139
Offset
Number of
registers
Name
Unit
Format
Value range
Access
Byte0 1 =
Output 0.1
Byte0 64 =
Output 4.
Byte0 65 =
Output 4.1
Byte0 128
=
Output 8.0
Byte0 129
=
Output 8.1
Byte1 0 =
off
Byte1 1 =
on
60009 1 Switching command for vector group – Unsigned
short
High 0 … 99, Low 0 … 1
High byte group assignment
Low byte 1 = ON, 0 = OFF
W
1)
The Modbus master must acknowledge these diagnostics bits.
A.1.10 MODBUS standard device identification with the function code 0x2B
Addressing the Modbus standard device identification
You can use Modbus function code 0x2B on these device identification parameters.
Table A- 14 Modbus standard device identification parameters
Object ID
Name
Format
Access
OID 0
Manufacturer
String
R
OID 1
Manufacturer device name
String
R
OID 2
FW version/bootloader version
String
R