Modbus Standard Device Identification With The Function Code 0X2B - Siemens SENTRON PAC3120 Manual

Offset Number of Name
registers
60009 1 Switching command for vector group –
The Modbus master must acknowledge these diagnostics bits.
1)
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
OID 0 Manufacturer
OID 1 Manufacturer device name
OID 2 FW version/bootloader version
PAC3120 and PAC3220
Equipment Manual, 10/2019, L1V30425208F-01
Unit Format Value range
Byte0 1 =
Byte0 64 = Output 4.
Byte0 65 = Output 4.1
Byte0 128
=
Byte0 129
=
Byte1 0 =
Byte1 1 =
Unsigned High 0 ... 99, Low 0 ... 1
short
High byte group assignment
Low byte 1 = ON, 0 = OFF
A.1 Modbus
Output 0.1
Output 8.0
Output 8.1
off
on
Format Access
String R
String R
String R
Appendix
Access
W
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