Modbus/HART Gateway

GT200-HT-RS

V4.1

GT200-HT-RS V4.1 Quick Start Guide

Product Appearance

Wiring

  • 1. According to the gateway's power wiring label and 24V DC power wiring.
    Pin Function
    1 Power GND
    2 NC(Not Connected)
    3 24V+,DC Positive 24V
  • 2. Connect the Modbus serial device according to the gateway's serial port wiring label.
    Pin Function
    1 B(+),RS-485 Data Positive
    2 A(-),RS-485 Data Negative
    3 GND
    Pin Function
    1 RX,Connect RS-232's RX of user device
    2 TX,Connect RS-232's TX of user device
    3 GND,Connect RS-232's GND of user device
  • 3. The gateway is connected to the computer via the USB port to upload, download and debug the gateway configuration.
  • 4. 35mm DIN Rail Installation.

LED Status Indicators

Indicator Location Indicator State State Description
Top Row
Serial Indicators		 TX Flashing Green Serial port is transmitting data.
OFF No serial data is being transmitted.
RX Flashing Green Serial port is receiving data.
OFF No serial data is being received.
Bottom Row
HART Indicators		 TX Flashing Green HART Bus is transmitting data.
OFF No HART data is being transmitted.
RX Flashing Green HART Bus is receiving data.
OFF No HART data is being received.
LCD Numeric Display   CF Configuration Mode
  HC HART Communicator Mode
  01-99 Run Mode
The number indicates the gateway’s Modbus address.

DIP Switch or Function Button

The DIP switch is located at the bottom of product,bit 1 is the debug bit and bit 2 is the configuration bit.

Debugging(bit1) Configuration(bit2) Description
Off Off RunMode
Off On ConfigurationMode
On Off DebugMode
On On ConfigurationMode

Software Configuration

  • 1. Run the SST-HT-CFG software installed on your computer.
  • 2. Click “Fieldbus” in the tree view on the left, set the “Type of protocol” and “Serial communication parameters”.
  • 3. Click “HART Channel” in the tree view on the left and set the HART channel parameters. Note:The default factory address of field device is 0.
  • 4. Add HART node and commands under the HART channel.By using the default HART Command 3 in the configuration software, you can simultaneously collect four variable values.
  • 5. Click download button, select the gateway in the pop-up dialog box and click on "Download".

Communication Instructions

  • 1. Connect HART devices to the gateway HART interface. HART devices are classified into two-wire system and four-wire system. Please refer to the gateway manual for specific connection methods.
  • 2. Observe the indicator lights to check the communication status (you can use the diagnose in SST-HT-CFG to view the data of the HART device).
  • 3. The Modbus master reads data from the HART device starting at address 30001 using Function Code 04. For details, please refer to the manual.