Data Sheet 10/63-6.71-EN Rev.
HART adapter
HART FSK / PC modem HART LCI / PC adapter
USB with small connector
Ex(Haz.) and Non-Ex(Haz.) applications
HART FSK / PC modem II
RS 232C
Non-Ex(Haz.) applications
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HART adapter
NHA121-NX, NHA121-NO Device Type Manager for HART Networks (optional)
HART FSK / PC-USB modem The software package HART FDT consists of the component:
CommunicationDTM CommDTM for NHA121-NX / -NO
Modem
Desktop PCs as well as notebooks can be flexible connected CommDTM
in the field to a HART network via the interface NHA121-NX / - The CommDTM is compliant with the current FDT specification
NO. That way, the real-time data from the field devices 1.2.1. It requires the NHA121-NX/-NO as basic hardware. The
available for applications such as mobile measured value DTM takes care of its management and configuration. It
acquisition and parameterization. replaces the vendor specific configuration software with a
On the device side the modem comes with 2-pole clip standard FDT approach.
terminal. The terminal clips can work at any point of the analog The CommDTM can be compared to a device driver which
measurement value transmission. Thereby no polarity must be facilitates the communication between the field devices at the
observed. The modem can work as primary as well as HART bus and their device DTMs. It therefore supports the
secondary Master and is furnished with galvanic isolation to commissioning of the field devices from one central
the HART network. workstation.
The USB adapter supports the HART specification standard. The communication interface can be employed as primary as
The USB-powered adapter requires no external power supply. well as secondary master. The configuration window of the
For the use in hazardous areas we deliver an intrinsic safe, CommDTM enables the user to switch between the two
ATEX certified version: NHA121-NX. It is functionally options. The retry limit and the number of preambles may also
equivalent to the NHA121-NO type. be set through the configuration window.
Software Features
The modem supports the Windows operation systems and it The function "Device List" allows the scan for devices attached
can work like a serial modem. It offers a serial COM-port so to the HART bus. All devices, which can be reached through a
that already existing applications can be used without any polling address, are listed. Additional information is available
changes. for every device found, including the tag, the vendor
Further more a device type manager (DTM) is included. The identification, the device type and the device ID.
DTM provides communication between devices on the HART In order to change the poll address of a device, it can be
bus and their DTMs. With its help set-up and configuration of selected from the device list. A new window opens which
the HART network can be done. permits the setting of the new poll address. The CommDTM
secures that the device is not currently in use by any
DeviceDTM. The device state is indicated in the device list.
The CommDTM also checks whether the new poll address
was already taken by another device, preventing an address
overlay between different devices
Explosion protection for NHA121-NX
Approved for connection to an intrinsically safe transmitter
circuit.
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2 10/63-6.71-EN Rev. L | HART adapter
Technical data
Modem type NHA121-NX NHA121-NO
M10678 M10679
PC interface USB
Operational area mobile / stationary
Modem chip HT2012
Connector 2-pole current terminal
Operation up to 16 connections parallel
Current consumption via USB port approx. 100 mA
via 4 20 mA 0 mA
Transmission rate 1200 Bit/s (600 Bit/s optional)
Available sofware IsHRT CommDTM (FDT 1.2.1)
CommDTM supports HART Version 5, 6 and 7
Operating system Windows 7 (32-bit / 64-bit), Windows Vista and Windows XP (32-bit versions only)
Certification CE, ATEX CE
ATEX II (2) G [Ex ia] IIC -
Delivery contents Hardware with fix USB cable and pluggable test clips, Driver and Configuration Software,
CommDTM, Documentation in German and English on CD
IMPORTANT (NOTE)
Installing the software / DTM
Install the driver before connecting the modem to a PC! Otherwise the modem may not be recognized
correctly.
Modems with serial number 2xxx and 4xxx can not be used with 64-bit versions of Microsoft(R) operating
systems.
HART adapter | 10/63-6.71-EN Rev. L 3
HART adapter
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NHA102-NO Technical data
HART FSK modem II Electrical data
Digital communication through FSK (standard HART Voltage U ss 0,6 V, average-free
Protocol) Current < 3 mA
Communication by tapping at the analog 4 ... 20 mA Power max 1,5 mW
signal transmission Frequency 1,2 and 2,2 kHz
Potential separation between the PC and the device Electromagnetic to IEC 801 / NAMUR
Average-free signal transmission, hence unaffected compatibility (EMC)
4 ... 20 mA output signal
Digital signals, 0 = 2.2 kHz; 1 = 1.2 kHz Environmental capabilities
Operating temperature 0 ... 45 C
Applications Storage temperature -20 ... 55 C
The FSK modem acts as a sort of digital communication Air humidity < 80 %
translator between the computer and the transmitter. Power
supply is realized automatically via the serial RS 232C Housing
interface of the computer, in parallel with data transmission. Material Plastic
Communication is done by tapping at any point of the analog Degree of protection IP 20
4 ... 20 mA signal transmission. No special attention has to be Connectors 9-pin or 25-pin Sub-D socket (PC side), screw
paid to polarity for the 2-pole tap. The devices are HART- terminals and 0.75 m cables with clip-on
compatible, i. e. they have a certain internal resistance, which connectors (device side)
must be considered. Power for data tapping is supplied in Dimensions 55 mm x 55 mm x 17 mm
parallel from the PC via the RS 232 C interface. Weight approx. 0,1 kg
The modem has a 9-pin or 25-pin Sub-D socket on the PC
side and is connected to the transmitter via 0.75 m cables
with clip-on connectors on the device side. The cables
connect to the modem through screw terminals.
M10680
Fig. 1
4 10/63-6.71-EN Rev. L | HART adapter
DSV401 DSV401
SMART VISION SMART VISION
5 4 Communication 5 4 2 1
+ resistor + + +
Transmitter Supply unit 1 Transmitter Supply unit
UB US UB US
Positioner Signal source 2 Positioner Signal source
2
- - - -
M10681 M10682
Fig. 2: Connection diagram, with 250 communication resistor Fig. 3: Connection diagram, without 250 communication resistor
1 Internal resistance for supply unit > 250 2 Internal resistance for signal source >10 k
(resistance can also be realized as external communication resistor)
2 Internal resistance for signal source >10 k
HART adapter | 10/63-6.71-EN Rev. L 5
HART adapter
NHA201-NO
LCI adapter
In offline mode (e. g. in the shop or lab) the local
communication interface (LCI) can be used for
parameterization. In this case the transmitter is powered via
the PC. In online mode local communication is possible
without affecting the analog output.
The LCI adapter is used to connect the transmitter to the PC.
Universal through:
9-pin or 25-pin SUB D connector
M10683
with small connector for: Fig. 4
Positioner, TEU421, TEU471, BCI100 (Contrans I),
Power Transducer SU.
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6 10/63-6.71-EN Rev. L | HART adapter
Ordering information
HART-FSK / PC modem Catalog No.
NHA121-NX (14290-0201) (Note 1) 3KDE636710L0001
USB / HART FSK modem,
IS input II (2) G [Ex ia] IIC, electrical isolation,
for Windows 7 (32-bit / 64-bit versions), Windows Vista and Windows XP (32-bit versions only),
to connect a tool to HART devices via a PC / Notebook
incl. standard driver and CommDTM (FDT 1.2.1),
USB cable, connection cable with clips and manual (*.pdf)
NHA121-NO (14290-0102) (Note 1) 3KDE636710L0002
USB / HART FSK modem,
Electrical isolation,
for Windows 7 (32-bit / 64-bit versions), Windows Vista and Windows XP (32-bit versions only),
to connect a tool to HART devices via a PC / Notebook
incl. standard driver and CommDTM (FDT 1.2.1),
USB cable, connection cable with clips and manual (*.pdf)
NHA102-NO (Note 1) 7957838
RS 232C / HART FSK modem II,
connector version, with connection clips
HART-LCI / PC adapter Catalog No.
NHA201-NO 319621
RS 232C / LCI adapter with small connector,
for positioners, TEU421, TEU471, BCI100 (Contrans I modules),
Power Transducer SU
Note 1:
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for configuration of general HART-instruments and TH(x)01, TS(x)02, BCI100 (Contrans I) backplane
Trademarks
Windows and Windows Vista are trademarks or registered
trademarks of Microsoft Corporation.
HART is a registered trademark of HART Communication
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Foundation.
HART adapter | 10/63-6.71-EN Rev. L 7
Contact us
10/63-6.71-EN Rev. L 11.2012
ABB Automation GmbH Note
We reserve the right to make technical changes or
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