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MGate MB3000 Modbus Gateway Hardware: MB3280
Pin Assignments
DB9 (Male)
The MGate MB3000 uses DB9 (male) serial ports to connect Modbus RTU or ASCII devices. Each port supports three serial interfaces: RS-232, RS-422, and RS-485 (both 2 and 4-wire).
Pin
6
7
8
1
2
3
4
5
RS-232
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RS-422
RS-485 (4W)
TxD-
TxD+
RxD+
RxD-
GND
---
---
---
RS-485 (2W)
---
---
Data+
Data-
GND
---
---
---
DIN-Rail, Wall Mounting
Mounting on a DIN-rail: Attach the DIN-rail accessories and latch the unit onto the DIN-rail as shown. The
DIN-rail kit is ordered separately.
Mounting on the wall: Place two screws in the wall and slide the unit onto the screws as shown. The head of each screw 6.5 mm or less in diameter, and the shaft should be 3 mm or less in diameter. Make sure to leave about 2 mm of space between the head and the wall.
4-5
MGate MB3000 Modbus Gateway Hardware: MB3280
Specifications
LAN
Ethernet
Protection
Serial Interface
Interface
No. of Ports
Connector Type
Signals
10/100 Mbps, RJ45, Auto MDI/MDIX
Built-in 1.5 kV magnetic isolation
RS-232/422/485
2 ports
DB9 (male)
RS-232:
RS-422:
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
Tx+, Tx-, Rx+, Rx-, GND
Serial Line Protection
RS-485 (2-wire):
RS-485 (4-wire)
Data+, Data-, GND
Tx+, Tx-, Rx+, Rx-, GND
15 kV ESD for all signals
RS-485 Data Direction Patented ADDC™
Serial Communication Parameters
Parity
Data Bits
Stop Bits
Flow Control
Transmission Speed
Software Features
Operation Mode
Utilities
Multi-Masters and
Multi-Request
None, Even, Odd, Space, Mark
7, 8
1, 2
RTS/CTS, XON/XOFF
50 bps to 921.6 Kbps
RTU Slave, RTU Master, ASCII Slave, ASCII Master
MGate Manager
16 simultaneous TCP masters, 32 simultaneous requests for each TCP master
Power Requirements
Power Input
Power Socket
Power Consumption
Environment
Operating Temperature
Storage Temperature
Warranty
Period
250 mA@12 VDC, 90 mA@48 VDC
Power jack and terminal block
250 mA (max.)
0 to 55°C (32 to 13 1°F), 5 to 95%RH
-20 to 85°C (-4 to 185°F), 5 to 95% RH
5 years
4-6
5
5.
Hardware: MB3480
This chapter provides hardware information for the MGate MB3480.
The following topics are covered in this chapter:
MGate MB3000 Modbus Gateway
Panel Layout
Hardware: MB3480
LED Indicators
Name Color
Red
Ready
Ethernet
P1, P2 P3, P4
Green
Off
Orange
Green
Off
Orange
Green
Off
Function
Steady on: Power is on and unit is booting up.
Blinking: Indicates an IP conflict, or DHCP or BOOTP server is not responding properly.
Steady on: Power is on and unit is functioning normally.
Blinking: Unit is responding to software Locate function.
Power is off, or power error condition exists.
10 Mbps Ethernet connection.
100 Mbps Ethernet connection.
Ethernet cable is disconnected, or has a short.
Serial port is receiving data.
Serial port is transmitting data.
No data is being transmitted or received through the serial port.
5-2
MGate MB3000 Modbus Gateway
Dimensions
Hardware: MB3480
5-3
MGate MB3000 Modbus Gateway
Jumpers
Hardware: MB3480
To add a 120 Ω termination resistor, set switch 3 on the port’s assigned DIP switch to ON; set switch 3 to
OFF (the default setting) to disable the termination resistor.
To set the pull high/low resistors to 150 KΩ, set switches 1 and 2 on the port’s assigned DIP switch to OFF.
This is the default setting.
To set the pull high/low resistors to 1 KΩ, set switches 1 and 2 on the port’s assigned DIP switch to ON.
ATTENTION
Do not use the 1 KΩ pull high/low setting on the MGate MB3000 when using the RS-232 interface. Doing so will degrade the RS-232 signals and reduce the effective communication distance.
5-4
MGate MB3000 Modbus Gateway Hardware: MB3480
Pin Assignments
DB9 (Male)
The MGate MB3000 uses DB9 (male) serial ports to connect Modbus RTU or ASCII devices. Each port supports three serial interfaces: RS-232, RS-422, and RS-485 (both 2 and 4-wire).
Pin
5
6
7
8
1
2
3
4
RS-232
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RS-422
RS-485 (4W)
TxD-
TxD+
RxD+
RxD-
GND
---
---
---
RS-485 (2W)
---
---
Data+
Data-
GND
---
---
---
DIN-Rail, Wall Mounting
Mounting on a DIN-rail: You will first need to attach the mounting plates (included) to the unit. Attach the
DIN-rail accessories to the mounting plates and latch the unit onto the DIN-rail as shown. The DIN-rail kit is ordered separately.
Mounting on the wall: You will first need to attach the mounting plates to the unit. Place four screws in the wall and slide the unit onto the screws as shown.
The head of each screw should be 6 mm or less in diameter, and the shaft should be 3 mm or less in diameter.
Make sure to leave about 5 mm of space between the head and the wall.
5-5
MGate MB3000 Modbus Gateway Hardware: MB3480
Specifications
LAN
Ethernet
Protection
Serial Interface
Interface
No. of Ports
Connector Type
Signals
10/100 Mbps, RJ45, Auto MDI/MDIX
Built-in 1.5 kV magnetic isolation
RS-232/422/485
4 ports
DB9 (male)
RS-232:
RS-422:
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
Tx+, Tx-, Rx+, Rx-, GND
Serial Line Protection
RS-485 (2-wire):
RS-485 (4-wire)
Data+, Data-, GND
Tx+, Tx-, Rx+, Rx-, GND
15 kV ESD for all signals
RS-485 Data Direction Patented ADDC™
Serial Communication Parameters
Parity
Data Bits
Stop Bits
Flow Control
Transmission Speed
Software Features
Operation Mode
Utilities
Multi-Masters and
Multi-Request
None, Even, Odd, Space, Mark
7, 8
1, 2
RTS/CTS, XON/XOFF
50 bps to 921.6 Kbps
RTU Slave, RTU Master, ASCII Slave, ASCII Master
MGate Manager
16 simultaneous TCP masters, 32 simultaneous requests for each TCP master
Power Requirements
Power Input
Power Socket
Power Consumption
Environment
Operating Temperature
Storage Temperature
Warranty
Period
12 to 48 VDC
Power jack and terminal block
460 mA@12 VDC, 170 mA@48 VDC
0 to 55°C (32 to 13 1°F), 5 to 95%RH
-20 to 85°C (-4 to 185°F), 5 to 95% RH
5 years
5-6
6
6.
Hardware: MB3170, MB3170I
This chapter provides hardware information for the MGate MB3170 and MB3170I.
The following topics are covered in this chapter:
Terminal Block (RS-422, RS-485)
MGate MB3000 Modbus Gateway
Panel Layout
Hardware: MB3170, MB3170I
LED Indicators
Name
PWR1
PWR2
Color
Red
Red
Red
RDY
Ethernet
P1
Green
Off
Orange
Green
Off
Orange
Green
Off
Function
Power is being supplied to the power input.
Power is being supplied to the power input.
Steady on: Power is on and unit is booting up.
Blinking: Indicates an IP conflict, or DHCP or BOOTP server is not responding properly.
Steady on: Power is on and unit is functioning normally.
Blinking: Unit is responding to software Locate function.
Power is off, or power error condition exists.
10 Mbps Ethernet connection.
100 Mbps Ethernet connection.
Ethernet cable is disconnected, or has a short.
Serial port is receiving data.
Serial port is transmitting data.
No data is being transmitted or received through the serial port.
6-2
MGate MB3000 Modbus Gateway
Dimensions
Hardware: MB3170, MB3170I
6-3
MGate MB3000 Modbus Gateway
Jumpers
Hardware: MB3170, MB3170I
The DIP switches are located beneath the DIP switch panel on the side of the unit.
To add a 120 Ω termination resistor, set switch 3 to ON; set switch 3 to OFF (the default setting) to disable the termination resistor.
To set the pull high/low resistors to 150 KΩ, set switches 1 and 2 to OFF. This is the default setting.
To set the pull high/low resistors to 1 KΩ, set switches 1 and 2 to ON.
Switch 4 on the port’s assigned DIP switch is reserved.
ATTENTION
Do not use the 1 KΩ pull high/low setting on the MGate MB3000 when using the RS-232 interface. Doing so will degrade the RS-232 signals and reduce the effective communication distance.
6-4
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