GW1500-DHPA:  ASCII to DH+ Multi-Protocol Gateway $1,395.00 USD list

Interfacing ASCII devices such as Bar Code Scanners and Weigh Scales to AB´s  DH+ (Datahighway Plus) Network.



GW1500 Gateway

The GW1500 is our next generation multi-protocol gateway that can easily be converted to several protocols with a firmware change (ie. DF1, ASCII, Modbus, ModTCP, AB Ethernet or Ethernet/IP to multiple DH+/DH-485) all for $1,395 USD list.  

You may wish to interface a ASCII barcode scanner to DH+ or switch firmware to program via RSLINX (AB Ethernet driver) remotely over Ethernet to DH+ with our GW1500-ABEIP firmware.

GW1500-DHPA: ASCII to DH+ Converter

The DataLink GW1500-DHPA  is compact, freestanding ASCII serial interface that has the ability to send and receive ASCII messages via A-B Data Highway Plus (DH+).

A block of data is temporarily stored in the ASM’s 240-byte buffer until the buffer is filled or an ASCII carriage return is detected in the data. Once the data is terminated, the bytes are transmitted to the PLC’s integer files in DH+ protocol format.  All bytes are retransmitted in the order they were received minus the carriage return.

The GW1500 has the added functionality of  enabling ASCII messages stored in PLC-5 data tables to be transferred over DH+ (Data Highway Plus) to a serial printer or message display.

The DHPA is specifically designed to buffer DH+ (Data Highway Plus) message commands sent to its station address from any PLC-5. The transmitted ASCII bytes are then flipped to produce messages on the printer in the same order as the ASCII data is entered and displayed in the PLC.

For more details: Application Notes & User’s Manual


Flexible System Layout:
Scanners, printers, weigh scales and message displays located anywhere on a DH+ network can send and receive ASCII messages to and from PLCs in other locations.

Protocol Flexibility: The GW1500  is a multi-protocol gateway that can be easily converted between DF1, ASCII, Modbus, ModTCP, AB Ethernet or Ethernet/IP to DH+ or DH-485 with a simple firmware change.

Compact and Lightweight: Palm-size, portable freestanding Din Rail/desktop controller with USB, AC/DC power option. Size and portability makes it convenient for use in the office, the plant floor, or when travelling.

Easy Configuration: All setup &  configuration is done via Web screen or Telnet.

Cost efficient Alternatives All protocols are available in one GW1500 Gateway for $1,395 USD list.

For more details, discount pricing, or to find out if this solution is suitable for your application, please contact us.

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 Data Highway Plus
Ethernet Channel: TCP/IP – 100-Base-T
Serial Channel: DF1 Communications
A-B Channel: Synchronous, DH+ at 57.6, 115.2, and 230.4 Kbaud Ethernet Channel: 100-Base–T; TCP/IP
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+ – 5.08mm pitch removable screw terminal plug
- RJ45- EthernetConnections – Bottom
- 5-pin RS485/RS422 – 3.81mm pitch removable screw terminal plug
- D9 – RS232 port