MOXA MGate MB3180 Series Modbus Gateway Installation Guide
- June 6, 2024
- MOXA
Table of Contents
MOXA MGate MB3180 Series Modbus Gateway
Overview
The MGate MB3180 is a 1-port Modbus gateway that converts between Modbus TCP and Modbus ASCII/RTU protocols. It can be used to allow Ethernet masters to control serial slaves, or to allow serial masters to control Ethernet slaves. Up to 16 TCP masters and 31 serial slaves can be connected simultaneously
Package Checklist
Before installing the MGate MB3180 Modbus gateway, verify that the package contains the following items:
- 1 MGate MB3180 Modbus gateway
- Power adapter
- 4 stick-on pads
- Quick installation guide (printed)
- Warranty card.
Optional Accessory
- DK-35A: DIN-rail mounting kit (35 mm)
- Mini DB9F-to-TB Adapter: DB9 female to terminal block adapter
NOTE This product is designed to be powered by a listed power source marked “LPS” and is rated 12 to 48 VDC and 0.25 A minimum. The device’s operating temperature when using the power adapter is 0 to 40°C (32 to 104°F), and 0 to 60°C (32 to 140°F) when using an alternative DC power source. If you need additional assistance purchasing a power source, please contact Moxa for more information.
Hardware Introduction
As shown in the following figures, the MGate MB3180 has one DB9 male port for transmitting serial data
Reset Button— The reset button is used to load factory defaults. Using a pointed object such as a straightened paper clip to hold the reset button down for five seconds. Release the reset button when the Ready LED stops blinking in order to load the factory defaults.
LED Indicators— Three LED indicators are located on the top panel
| Name | Color | Function |
|---|---|---|
| Ready | Red | Steady on: Power is on and the unit is booting up. |
Blinking: IP conflict exists, or DHCP or BOOTP
server is not responding properly.
Green| Steady on: Power is on and the unit is functioning
normally.
Blinking: Unit has been found by the Location
command in MGate Manager.
Off| Power is off or power error condition exists.
Ethernet| Orange| 10 Mbps Ethernet connection.
Green| 100 Mbps Ethernet connection.
Off| Ethernet cable is disconnected or has a short.
P1| Orange| Unit is receiving data from device.
Green| Unit is transmitting data to device.
Off| No data is being exchanged with device.
Hardware Installation Procedure
STEP 1: After unpacking the MGate MB3180, connect the power adapter. Make
sure that the adapter is connected to an earthed socket outlet.
STEP 2: Use a standard straight-through Ethernet cable to connect the
MGate MB3180 to a network hub or switch. Use a cross-over Ethernet cable if
you are connecting the gateway directly to a PC.
STEP 3: Connect your device to the MGate MB3180’s serial port.
STEP 4: Place or mount the MGate MB3180. The unit may be placed on a
horizontal surface such as a desktop, mounted on a DIN rail, or mounted on the
wall
Wall or Cabinet Mounting
Mounting the MGate MB3180 onto a wall requires two screws. The head of the screws should be 5.0 to 7.0 mm in diameter, the shaft should be 3.0 to 4.0 mm in diameter, and the length of the screws should be at least 10.5 mm.
DIN-rail Mounting
DIN rail attachments can be purchased separately to mount the MGate MB3180 on a DIN rail.
Adjustable Pull High/Low Resistors for the RS-485 Port
In some critical RS-485 environments, you may need to add termination resistors to prevent the reflection of serial signals. When using termination resistors, it is important to set the pull high/low resistors correctly so that the electrical signal is not corrupted. Jumpers JP3 and JP4 are used to set the pull high/low resistor values for the serial port. To set the pull high/low resistors to 150 KΩ, which is the factory default setting, leave the two jumpers open. To set the pull high/low resistors to 1 KΩ, use the jumper caps to short the two jumpers.
MGate MB3180 Jumpers
Software Installation
You can download the MGate Manager, User’s Manual, and Device Search Utility
(DSU) from Moxa’s website: www.moxa.com. Please refer
to the User’s Manual for additional details on using the MGate Manager and
DSU.
The MGate MB3180 also supports login via a web browser
- Default IP address: 192.168.127.254
- Default account: admin
- Default password: moxa
Pin Assignments
Ethernet Port (RJ45)
| Pin | Signals |
|---|---|
| 1 | Tx+ |
| 2 | Tx- |
| 3 | Rx+ |
| 6 | Rx- |
Serial Port (Male DB9)
Pin| RS-232| RS-422/485
(4-Wire)
| RS-485
(2-Wire)
---|---|---|---
1| DCD| TxD-(A)| –
2| RxD| TxD+(B)| –
3| TxD| RxD+(B)| Data+(B)
4| DTR| RxD-(A)| Data-(A)
5| GND| GND| GND
6| DSR| –| –
7| RTS| –| –
8| CTS| –| –
9| –| –| –
Environmental Specifications
Power Requirements
Power Input| 12 to 48 VDC
Power Consumption| 200 mA @ 12 VDC, 60 mA @ 48 VDC
Operating Temperature| 0 to 60°C (32 to 140°F)
Storage Temperature| -40 to 85°C (-40 to 185°F)
Operating Humidity| 5 to 95% RH
Dimensions
With ears: Without ears:
| ****
22 x 75 x 80 mm (0.87 x 2.95 x 3.15 inch)
22 x 52 x 80 mm (0.87 x 2.05 x 3.15 inch)
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>