Modbus Rtu Communication; Rs485 Communication Interface; Communication Parameters; Modbus Holding Registers - Evikon PluraSens E2658-ETO User Manual

E2658-ETO
Modbus RTU Communication
RS485 communication interface
Databits: 8
Parity: none / odd / even
Stop bits: 1 or 2
Protocol: Modbus RTU
Communication parameters
Parameter
Supported baud rates 1200, 2400, 4800, 9600, 19200, 38400, 57600
Data bits
Parity
Stop bits
Protocol
Modbus functions
Error codes
Modbus holding registers
Register addresses are shown 0-based, Addr in hexadecimal, Reg in decimal format.
Modbus holding register numbers MHR are shown in the decimal 1-based format and may
be addressed either from 00001 or 40001 base.
Addr Reg / MHR RW Description
0x0001 1 / 40002 R
0x0002 2 / 40003 R
0x0003 3 / 40004 R
0x0004 4 / 40005 RW Slave ID (net address) *
0x0005 5 / 40006 RW Baud rate *
Permitted values
8
none / odd / even
1, 2
Modbus RTU
03 - Read multiple registers
06 - Write a single register
01 – Illegal function
02 – Illegal data address
03 – Illegal data value
04 – Slave device failure
(details of last error 04 can be read from register 0x0008)
Hardware version
Software version
Product serial number
Supported Modbus functions:
03 – Read multiple registers
06 – Write a single register
Supported values (dec)
1...65535
1...247 **
1200, 2400, 4800, 9600,
19200, 38400, 57600
16
Rev 16.12.2020
Default
Default
9600
8
none
1
-
-
-
1
9600