GW1500-DH485M Multi-Protocol Converter $1,395 USD list

Modbus Gateway to DH-485 Network
(Modbus to DH-485)

The DataLink GW1500-DH485M is a Modbus master/slave interface for computers, MMIs, and OEM based applications that require access to a node on AB’s DH485 network. Highlights include palm-size portability, DC power, external Din Rail cabinet with Modbus USB or serial functionality to DH-485.

The Modbus/DH485 can be set to be either a Master or a Slave on the Modbus serial link, as well as communicate using either RTU or ASCII protocols.

The Modbus/DH485 in Master Mode can read from and write to registers and coils in any Modbus Slave device connected. Slave Mode allows a Modbus Master device to read from or write to files in a A-B PLC or SLC connected to the DH485 network

The GW1500 can be converted between several protocols with an easy firmware change (ie. DF1, ASCII, Modbus, ModTCP, AB Ethernet, Ethernet/IP) to multiple DH+ nodes.  You may wish to program via RSLINX (AB Ethernet driver) remotely over Ethernet with our GW1500-ABEIP firmware or switch to RSLINX (1770-KF2) serial DF1 to DH+ using our GW1500-DHP1 firmware.

Serial Interfacing
CHA – RS232, RS422 and RS485 Interface to DF1 (Full Duplex) device (SLC CH0)
CHB – DH-485 Non Isolated Interface
CHC – Future use

Physical Dimensions
Size: 0.90″ H x 4.65″ D x 3.98″ W (22.8mm x 118.3mm x 101.0mm)
Weight: 0.66lbs (0.3kg)
Power: 9-27 VDC; Less than 2 WattsInstallation
Plastic enclosure; Freestanding or DIN rail mounting with integrated clipEnvironment
Operating: +32 F to 122 F (0C to +50 C)
Storage: -40 F to +185 F (-40C to +85C)
Humidity: 5% to 95% non-condensing


A-B Channel: Allen-Bradley DH-485
Ethernet Channel: TCP/IP – 100-Base-T
Serial Channel: DF1 Communications
A-B Channel: Synchronous, DH-485 upto 32.4 Kbaud Ethernet Channel: 100-Base–T; TCP/IPSerial channel:
Integrated web server for configuring communications parameters.Indicators
DH+ status
Serial Status
Serial RX
Serial TX
Ethernet Activity
Ethernet Link Pushbuttons
Connections – Top
- 3-pin power – 3.81mm pitch removable screw terminal plug
- 3-pin A-B DH-485 – 5.08mm pitch removable screw terminal plug
- RJ45- EthernetConnections – Bottom
- 5-pin RS485/RS422 – 3.81mm pitch removable screw terminal plug
- D9 – RS232 port