finder RS485 RTU Modbus TCP/IP Gateway User Guide
- June 9, 2024
- finder
Table of Contents
finder RS485 RTU Modbus TCPIP Gateway
PRODUCT OVERVIEW
The 6M.BU.0.024.2200 provides a Modbus TCP/IP interface for up to 200 Modbus RS485 RTU devices; communicating with up to 10 clients at the same time.
WIRING
Before proceeding with programming it is first necessary to set the DIP switches to enable programming and access to the local network.
DEVICE POWER SUPPLY
The 6M.BU requires a 24 V AC or DC power supply.
- Power supply connector. The 6M.BU must be connected to a power supply with 12 or 24 V output voltage
- RJ45 connector for ETH cable
- Modbus RS485 shielded cable connector
To power the device correctly, we recommend using Finder power supply Type
78.12.1.230.2400 to power the device at 24 V DC, or Type 78.12.1.230.1200 to
power at 12 V DC.
Both are 12 W power supplies; the choice of voltage being made according to
the power supply voltage required for other components in the panel.
If it is necessary to use a power supply with higher power, please view our
catalog or the website page:
https://cdn.findernet.com/app/uploads/S78IT.pdf
DIP SWITCH
1: ON
2: OFF
Default communication parameters (192.168.178.29; 115200, 8, N, 1)
This DIP switch setting allows access using the factory set parameters
1: ON
2: OFF
This DIP switch setting allows use of the parameters set by the user and stored in the internal memory. If the DIP switches are not in this position the 6M.BU will operate with the default parameters. Once the setting has been done, it is necessary to remove and re-apply the supply voltage to the 6M.BU in order to upload the parameters as set
1: OFF
2: ON
DHCP Enabled
1: ON
2: ON
Enabling for firmware update (BOOT LOADER)
LED INDICATORS
LED
FUNCTION| COLOUR| STATUS| MEANING
Power| Green| ON| Power supply OK
Wait/Fail| Yellow| Wait: slow blinking| Waiting for Ethernet communication
Fail: fast blinking| ETH communication in progress (or Bootloader activated)
RX| Red| Blinking| Receives data from RS485
TX| Red| Blinking| Transmits data from RS485
Link| Yellow| ON| ETH connection ready
Activity| Yellow| Blinking| ETH activity in progress
SETTINGS
Windows settings to create local net suitable for 6M.BU
Control panel
Select: Network and sharing center
Select: Change Ethernet settings
Right click > “Ethernet” > Properties
Internet protocol version 4 (TCP/IPv4) > Properties
-
Select: use the following IP address Write in “IP address”: 192.168.178.1 Press “Tab” or click on “subnet mask”
-
Click on: OK, then Close
Click on Chrome
Type in the URL bar: 192.168.178.29
Press “Enter” and we are connected to the 6M.BU
WEB SERVER
Pressing on
It is possible to type in the parameters of the network on to which the 6M.BU
is installed
Select 
It is possible to type in the parameters of the network on to which the 6M.BU
is installed
Once the settings have been made, click on 
Done! The 6M.BU is programmed and ready to be used with the new settings
IMPORTANT
Switch off 6M.BU by removing the power supply.
Move the DIP switch 1 to OFF position (both DIP switches must be positioned to “0” – OFF).
Power up the 6M.BU and it will start to work using the new parameters set.
Network adapter settings reset
Windows Network settings reset
Control panel
Select: Network and sharing center
Select: Change Ethernet settings
Ethernet
Right click > Properties
Internet protocol version 4 (TCP/IPv4) > Properties
Select: “Automatically obtain IP address” Click on: OK, then Close
NDER reserves the right to make changes to its products at any time and without notice. FINDER declines all responsibility for damages to things or people deriving from incorrect or improper use of its prod.
