Modbus addresses
45
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200116
BA-42840-02-V03
Water sampling station
EASYPRO COMPACT
Operating instructions
13 Modbus addresses
With a DOUBLE-WORD, the HIGH-WORD is transferred first! Hexadecimal display is shown by a leading “0x”.
Address
Read
Write
Description
Meaning
Data that are not channel-related.
4
x
Device type + version
(number of channels -1)
A single-channel controller accordingly has the identification: 0x0500.
6 – 8
x
Software Version:
Transfer: ASCII sign
e.g. 102 is the software version V1.02
10 – 11
x
Operating hours
13
x
Hardware version
2000 – 2002
x
Serial number
The information consists of a ASCII sign in HIGH-BYTE and one in
LOW-BYTE.
Serial number: 123456 will thus be transferred as
Address 2000: 0x3132
Address 2001: 0x3334
Address 2002: 0x3536
transferred
2003
x
Status of the digital inputs
Displays the terminal logic (not the configured software function).
The individual bits are assigned directly to the input clamps.
Example: 0x01 means that the first digital inputs (clamps 21 + 22) are
actuated.
2004
x
Status digital outputs
The individual bits of the output modules.
Example: 0x03 means that the upper relay or the upper optocoupler of
the second output module (from the top) is active.
2008 – 2017
x
x Name of the device
Max. of 20 characters
Caution!
The evaluation must stop at the first zero (string end).
The individual letters are located in the HIGH-BYTE and LOW-BYTE of
every address. “GW” thus produces:
Address 2008 = 0x4757
Address 2009 = 0x00
The question marks are undefined.
In this case, all other addresses send undefined values.
Input-related data. 20 addresses will be held available for each of the 1 to 4 inputs. The address space for the inputs begins at 2020, 2040,
2060 and 2080.
Tab. 32: Modbus addresses
