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modbus gateway dh-485

modbus gateway dh-485
Modbus Gateway to DH-485 Network

The DataLink DL3500-DH-485/ Modbus 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.

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

Specifications:

Physical Dimensions
Size: 1.2"H x 4.75"D x 3.2"W
(30.4 mm x 120.7 mm x 81.3 mm)
Weight: 0.56lbs (0.194 kg)
Power: DC: 9-27 VDC; Less than 2 Watts

Installation
Metal enclosure; Freestanding, DIN rail mounting clips, or #8 bolts

Environment
Operating: +32 F to 122 F (0 C to +50 C)
Storage: -40 F to +185 F (-40 C to +85 C)
Humidity: 5% to 95% non-condensing

Indicators
Green LED for power-on
Red/Green BI-Color LED's for communications

Pushbuttons
Reset and Configure/Diagnostics mode pushbuttons

Communications
Channel A: Isolated DH-485
Channel B: Serial 300 b to 230.4 Kb or USB
Channel C: Future

Connectors
CHA: 3-pin DH-485
CHB: 9-pin RS232, 5-pin RS422/RS485, and USB
CHC: 39-pin RS232 (Future)
Power: 3-pin Miniature Phoenix Euro

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