2.10.1 “Device identification” register
These register inputs are for the function code “0x03” (Read only).
Register Parameter Type Description
1 Product code UINT32 Option for the identification of the product
3 Modbus register set version UINT16 Format: XX.XX
Provides information as to which version of the
Modbus register set is used to access the indi‐
vidual parameters. This information must be
stored in the Modbus module
4 Serial number STRING[10] ASCII coding 10 characters
9 Identity code STRING[32] ASCII coding 32 characters
25 HMI data version UINT32 Format: XX.XX.XX.XX (depending on the
project)
27 Firmware-Version Control UINT32 Format: XX.XX.XX.XX (depending on the
project)
29 Bootloader-Version Control UINT32 Format: XX.XX.XX.XX (depending on the
project)
31 Firmware-Version Power UINT32 Format: XX.XX.XX.XX (depending on the
project)
33 Bootloader-Version Power UINT32 Format: XX.XX.XX.XX (depending on the
project)
2.10.2 “Modbus” register
These register inputs are all only for function code “0x03” (Read
only).
Register Designation Type Display / purpose
50 Modbus module active UINT8 0 - NOT ACTIVE
1 - ACTIVE
2 - PASSIVE
51 Baud rate UINT8 0 - 9600 bits/sec
1 - 19200 bits/sec
2 - 38400 bits/sec
52 Bus address (Modbus) UINT8 1 … 247
53 Parity (parity bit) UINT8 0 - NONE
1 - ODD
2 - EVEN
54 Stop bits (number of stop
bits)
UINT8 0 - 1 STOP BIT
55 Data length (number of data
bits)
UINT8 1 - 8 BITS
Supplementary operating instructions for Modbus RTU
36
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