Toptech Systems MultiLoad II User Manual

Chapter 4 – General Configuration
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Firmware Version 3/4.31.37
4.3.2 MODBUS SETUP & MODBUS SLAVE DEVICE CONFIGURATION
Use the Modbus Setup to enable or disable port 502 for incoming Modbus messages, as well as configure up
to 10 slave devices for the MultiLoad to send Modbus commands to.
Navigate to this screen: Main Menu -> Configuration -> Network -> Modbus Setup.
Parameter
Description
Modbus TCP/IP Port
This parameter enables or disables incoming Modbus communications. If a Master
device is attempting to send commands to the MultiLoad, this parameter will need to be
enabled.
Modbus 32-Bit Little
Endian
A 32-bit value in Modbus is actually two 16-bit values packaged together. This
parameter determines the order of which these two values are packed together.
For example:
We will use the value 65535. This is represented in hexadecimal as 0x0000FFFF (0000
is the first 16 bits, and FFFF is the second 16 bits).
32-bit Little Endian is disabled: Register X= 0x0000, Register X+1=0xFFFF.
32-bit Little Endian is enabled: Register X= 0xFFFF, Register X+ 1= 0x0000.
By default this parameter is disabled. Set this value based on however the master
device expects the 32-bit Modbus values to be formatted.
Device Configuration
This will bring you to another screen where you can configure up to 10 Modbus slave
devices.
MODBUS SETUP
Modbus TCP/IP Port(502): ENABLED
Modbus 32-Bit Little Endian: DISABLD
Device Configuration
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Toptech Systems MultiLoad II Specifications

General

Brand	Toptech Systems
Model	MultiLoad II
Category	Control Unit
Language	English