HART Modem
- Microcyber
- China Shenyang
- 3 work days
- 1000pieces/month
NCS-HM105 HART Modem--As the leading company of industrial Internet of things, Microcyber Corproation has decades of experience in industrial Internet of things, HART MODEM is one of the hottest products on Microcyber.HART signal MODEM (HART MODEM) is a necessary tool for instrument manufacturers to upgrade products and control signal conversion on site.
HART Modem Product Overview
In the instruments industry, the traditional 4 – 20 mA analog transmitters are upgrading to the fieldbus with digital communication. HART fieldbus communication has digital communication capability with compatible analog signal. HART MODEM is a necessary and convenient tool for the analog products upgrading and signal exchanging in the control plant.
We provide two kinds of HART modem. HART-RS232 is the converter for HART signal to RS-232 signal. HART-USB is the converter for HART signal to PC virtual series port.
HART Modem Specification
Parameter | Value |
Power Supply | No external power supply required |
Galvanic Isolation | 500VAC between the device and the PC |
Receiving Impedance | ≥5KΩ |
Receiving Sensitivity | 120mVpp |
Output Amplitude | 500mVpp(500Ω) |
Connector | USB/RS232 connector to PC, 2 alligator clip on Transmitter |
Cable Length | USB/RS232 cable: 1.5m; HART cable: 1.00 m |
HART Modem Housing
Parameter | Value |
Weight | app. 125 g（include cable） |
Dimensions | 60 x 45 x 14 mm |
HART Modem Environment
Parameter | Value |
Operating temperature | 0 to 50 °C |
Storage Temperature | -40 to 85 °C |
Humidity | 0-95% (no condensation) |
HART Modem PC System
Parameter | Value |
Operating System | Windows 98/ME/2000/XP/win7/win8 |
USB/RS232-Port | USB-Host/RS232 |
HART Modem Connection
Configuration Kit for HART Modem
1. Voltage-mode modem signal
2. Compliance with HART (FSK) Physical Layer Specification
3. Transformer isolation to avoid grounding effect
4. Low power design without external power supply
5. Two Choices with USB Port and Serial Port
6. USB HART signal modem can supply external power
7. The output amplitude of RS232A HART signal modem is adjustable
The HM105 is a signal converter between the HART-protocol field device and the PC running the configuration software. See below for details.
When connecting multiple HART devices, the above figure is based. Connect the remaining HART devices to the HART devices in the figure. Note that the power supply needs to support multiple devices. The load resistors are connected in series between the power supply and the device.
This product is a voltage-modulated HART signal modem. The two non-polar alligator clips on the HART interface are clamped to the HART load resistors at both ends of the HART load resistor or at both ends of the field device power supply. Connect the other end of the product to the USB port of the PC (when the HM105-RS232 modem is used, the 9-pin serial port) to connect to the PC.
When using HM105-USB modem, the PC needs to install the included USB to serial port driver. The running configuration software uses the virtual serial port provided by the driver. When using HM105-RS232 modem, the configuration software uses the serial port provided by the host. 1200 bps half-duplex asynchronous serial communication via modem and field devices.
The HM105-USB uses a FTDI chip to provide a virtual COM port (VCP) that supports Windows, Linux, Mac OS, Windows CE and other operating systems. Driver and system support, please see the following.
URL: https://www.ftdichip.com/Drivers/VCP.htm
