Modbus addresses
25
© Lutz-Jesco GmbH 2018
Subject to technical changes.
180426
BA-40900-02-V01
Gas warning device
EASYCON GW
Operating instructions
12 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 gas warning device thus has the identification:
0x0550
6 to 8
x
Software Version:
Transfer: ASCII sign
e.g. 102 is the software version V1.02
10 and 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
2003
x
Status of the digital inputs
Shows the logic of the clamps! (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 gas warning device
Max. 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.
Table 17: Modbus addresses
