ICP DAS USA HRT-711 User manual

TM
HRT-711
User’s Manual
Version 1.00

Revision History
Revision
Date
Description
1.00
2014/01/21
First revision

Preface
Warranty
All products manufactured by ICP DAS are under warranty regarding defective
materials for a period of one year from the date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use of this product. ICP
DAS reserves the right to change this manual at any time without notice. The
information furnished by ICP DAS is believed to be accurate and reliable. However,
no responsibility is assumed by ICP DAS for its use, nor for any infringements of
patents or other rights of third parties resulting from its use.
Copyright
Copyright © 2013 by ICP DAS CO., LTD. All rights are reserved.
Trademark
Names are used for identification purposes only and may be registered trademarks
of their respective companies

HRT-711 Users Manual (2014/1/21, Rev: 1.00) 5
Table of Contents
SECTION 1- INTRODUCTION....................................................................................................................... 7
1.1 FEATURES...................................................................................................................................................... 7
1.2 SPECIFICATION............................................................................................................................................. 8
SECTION 2- HARDWARE................................................................................................................................ 9
2.1 BLOCK DIAGRAM......................................................................................................................................... 9
2.2 PIN ASSIGNMENT........................................................................................................................................ 9
2.3 WIRING.......................................................................................................................................................10
2.3.1 RS-232..............................................................................................................................................10
2.3.2 HART.................................................................................................................................................11
2.3.3 Ethernet...........................................................................................................................................13
2.4 LEDINDICATORS.......................................................................................................................................13
2.5 DIP SWITCH...............................................................................................................................................13
2.6 JUMPERS.....................................................................................................................................................14
2.7 MOUNTING................................................................................................................................................15
SECTION 3- HART INTRODUCTION ........................................................................................................16
3.1 ANALOG AND DIGITAL SIGNAL................................................................................................................16
3.2 TOPOLOGY .................................................................................................................................................17
3.3 HART FRAME............................................................................................................................................18
SECTION 4- MODBUS COMMUNICATION...........................................................................................20
4.1 MODULE EXECUTION PROCESS...............................................................................................................20
4.2 MODBUS /HART MAPPING TABLE........................................................................................................20
4.2.1 Input Data Area－User CMD Data ........................................................................................20
4.2.2 Input Data Area－Module State Data .................................................................................20
4.2.3 Input Data Area－Default CMD 0 Data...............................................................................21
4.2.4 Input Data Area－Default CMD 3 Normal Format Data ..............................................22
4.2.5 Input Data Area－Module Error Record Data ..................................................................23
4.2.6 Input Data Area－Default CMD 0&3 Status Data...........................................................23
4.2.7 Input Data Area－User CMD Error Status ..........................................................................24
4.2.8 Input Data Area－Module Hardware Data........................................................................25
4.2.9 Input Data Area－Through Mode Data ..............................................................................25
4.2.10 Input Data Area－Default CMD 3 Simple Format Data .............................................25
4.2.11 Output Data Area......................................................................................................................26
4.3 THROUGH MODE ......................................................................................................................................27
SECTION 5- UTILITY .......................................................................................................................................28
5.1 .NET FRAMEWORK INSTALLATION..........................................................................................................28
5.2 INSTALL HRT-711 UTILITY ......................................................................................................................29

Table of Contents
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5.3 INTRODUCTION OF UTILITY......................................................................................................................32
5.4 CONFIGURATION OF ETHERNET...............................................................................................................32
5.5 CONFIGURATION OF MODBUS TO HART ..............................................................................................33
5.5.1 Traffic Light.....................................................................................................................................34
5.5.2 Current Config Module Name ...............................................................................................34
5.5.3 Connection Status.......................................................................................................................34
5.5.4 Connection Control ....................................................................................................................34
5.5.5 Tools..................................................................................................................................................34
APPENDIX A HART COMMAND................................................................................................................47
COMMAND 0：READ UNIQUE IDENTIFIER...................................................................................................47
COMMAND 1：READ PRIMARY VARIABLE ...................................................................................................47
COMMAND 2：READ P.V. CURRENT AND PERCENTAGE OF RANGE..........................................................47
COMMAND 3：READ DYNAMIC VARIABLES AND P.V. CURRENT ..............................................................48
COMMAND 6：WRITE POLLING ADDRESS ..................................................................................................48
COMMAND 11：READ UNIQUE IDENTIFIER ASSOCIATED WITH TAG ......................................................48
COMMAND 12：READ MESSAGE .................................................................................................................49
COMMAND 13：READ TAG,DESCRIPTOR,DATE ........................................................................................49
COMMAND 14：READ PRIMARY VARIABLE SENSOR INFORMATION .......................................................49
COMMAND 15：READ PRIMARY VARIABLE OUTPUT INFORMATION.......................................................50
COMMAND 16：READ FINAL ASSEMBLY NUMBER ....................................................................................50
COMMAND 17：WRITE MESSAGE ...............................................................................................................50
COMMAND 18：WRITE TAG,DESCRIPTOR,DATE.......................................................................................51
COMMAND 19：WRITE FINAL ASSEMBLY NUMBER ..................................................................................51
APPENDIX B COMMAND FORMAT..........................................................................................................52
THE SIMPLE FORMAT OF HART COMMAND..................................................................................................52
Command 1：(Read Primary Variable)..........................................................................................52
Command 2：(Read P.V. Current and Percentage of Range)................................................52
Command 3：(Read Dynamic Variables and P.V. Current).....................................................52

Features Section 1- Introduction
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Section 1- Introduction
Modbus and HART are two kinds of famous protocols and used wildly in the fields of factory and process
automation. The HRT-711 module is a Modbus to HART gateway. By using this module, users can
integrate their HART devices into Modbus network easily. The below figure 1 shows an application
example for the HRT-711 module.
1.1 Features
Support HART Short/Long frame
Support HART Burst mode
Allow two HART Masters
Support Modbus/TCP Format
Support Modbus Slave / HART Master Mode
Support Firmware Update via Com Port
Support On-line Replacement of HART Devices
Support Acquire Long Frame Address Automatically
Provide LED indicators
Built-in Watchdog
DIN-Rail or Wall Mounting

Section 1- Introduction Specification
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1.2 Specification
Item
Specification
Com Port
RS-232(3 wire)
Screwed terminal block
Fixed baud rate 115200 bps
HART
1 HART Modem
Screwed terminal block
Operates as a HART Master station and supports all HART
commands
Support Short and Long Frame
Support Point to Point or Multi-drop
Max. 15 HART modules
Max. 100 user commands and 32 default commands
Ethernet
1 x 10/100Base-TX Ethernet Controller
RJ-45
Auto Negotiation
Auto MDIX
Power
+10 ~ +30 VDC
Power reverse protection and Over-Voltage brown-out
protection
Power Consumption：2 W
Module
Dimensions: 72 mm x 121 mm x 35 mm (W x L x H)
Operating temperature: -25 ~ 75 ºC
Storage temperature: -30 ~ 85 ºC
Humidity: 5 ~ 95% RH, non-condensing
3 x LED indicators
ETH LED
Network Status
HART LED
HART Status
ERR LED
Error

Block Diagram Section 2- Hardware
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Section 2- Hardware
2.1 Block Diagram
2.2 Pin Assignment
LED Status
Indicators
Ethernet

Section 2- Hardware Wiring
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Pin Name
Group
Description
HART+
HART
Positive of HART
HART-
Negative of HART
+VS
Power Source
V+ of Power Supply(+10 ~ +30 VDC)
GND
GND of Power Supply
TXD
Configuration
Transmit Data of RS-232
RXD
Receive Data of RS-232
GND
GND of RS-232
E1
Modbus/TCP
Ethernet RJ45 connector for Modbus/TCP
2.3 Wiring
In this section, this user’s manual will introduce the wiring for each interface.
2.3.1 RS-232
The RS-232 port of HRT-711 uses a 3-wire communication interface. It needs a unique cable, CA-0910, to
wire from screwed terminal block to D-Sub 9pin connector. Users can choose use CA-0910 for RS-232
wiring or directly connecting to D-Sub. 2.3.1.1 and 2.3.1.2 are the wiring for the RS-232 interface.
2.3.1.1 Without CA-0910
When users choose not to use CA-0910 for RS-232 wiring, user have to have a D-Sub 9pin connector to
wire. The following figure is the wiring diagram for the wiring without CA-0910.

Wiring Section 2- Hardware
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2.3.1.2 With CA-0910
It is recommended that users use CA-0910 for wiring the RS-232 port. The wiring of CA-0910 and
HRT-711 is shown as below.
2.3.2 HART
The wiring of HART bus can be devided into two types. One is loop power (Passive Loop), and the other is
external power (Active Loop). The following figures show the wiring for the HART bus.

Section 2- Hardware Wiring
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LED Indicators Section 2- Hardware
HRT-711 Users Manual (2014/1/21, Rev: 1.00) 13
2.3.3 Ethernet
The wiring for Ethernet is directly connecting your RJ-45 Ethernet cable to the RJ-45 port on the HRT-711.
2.4 LED Indicators
The HRT-711 provides three LED indicators to indicate the module status. The descriptions are shown as
follow.
LED
Status
Description
ETH
Blink
Blink every 0.2 second：Receiving Ethernet packet
Blink every 3 second：The network function is normal
Off
Ethernet Error
HART
Blink
Blink every 1 second：
The HRT-711 is in the initialing procedure
Blink every 0.5 second：
The HRT-711 is handling the burst frame sent from HART device
Solid
The HRT-711 is in the normal status
Off
Firmware is not loaded
ERR
Blink
HART communication error
Off
HART communication is good
2.5 DIP Switch
The DIP switch is used for switching the mode between Init and Normal. The switch is located in the back
of the module. In the init side, the module can be configured through Utility. In the normal side, the
module is a gateway between HART and Modbus/TCP protocol. Users have to power cycle the module
when switch to different mode.

Section 2- Hardware Jumpers
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2.6 Jumpers
There are three jumpers for enabling/disabling function. The description for each jumper is shown as
following table.
Jumper
Description
JP2
Enable/Disable hardware WDT. (Default setting is enable)
NOTE: Please do not disable the hardware WDT.
JP3
For updating firmware. (Default setting is on 1 and 2)
NOTE: Please do not switch to 2 and 3 when in normal operation.
JP4
The jumper can provide HART bus with 250 Ω(1/4 W) resistor. When the pin
1&2 of JP4 is closed, the resistor will connect to HART bus. When the pin
2&3 of JP4 is closed or JP4 without jumper connected, it will disconnect the
resistor from HART bus. By default, the pin1&2 of JP4 is closed. Please refer
to section 2.3.2.

Mounting Section 2- Hardware
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2.7 Mounting

Section 3- HART Introduction Analog and Digital Signal
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Section 3- HART Introduction
3.1 Analog and Digital Signal
The HART communication protocol is based on the Bell 202 telephone communication standard and
operates using the frequency shift keying (FSK, Figure 14) principle. The digital signal is made up of two
frequencies - 1,200 Hz and 2,200 Hz representing bits 1 and 0, respectively. Sine waves of these two
frequencies are superimposed on the direct current (dc) analog signal cables to provide simultaneous
analog and digital communications.

Topology Section 3- HART Introduction
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3.2 Topology
HART bus can operate in one of network, point to point and multi-drop, configurations.
Point to Point
In point to point mode, the analog signal is used to communicate one process variable and the digital
signal gives access to secondary variables and other data that can be used for operations,
commissioning, maintenance and diagnostic purposes. Only one HART slave device can exist in HART
bus and the polling address must be zero.
Multi-drop
In multi-drop mode, all process values are transmitted digitally. The polling address of all field devices
must be bigger than 0 and between 1 ~ 15. The current through each device is fixed to a minimum
value (typically 4 mA). The maximum HART device number in HART bus is up to 15.
NOTE：The built-in resistor in HRT-711 is 250 Ohm with 1/4W. Therefore, HRT-711 supports to connect
the maximum 7 HART devices simultaneously. If the HART devices in multi-drop mode are more than
7, then users need to disconnect the built-in resistor in HRT-711 (prevent to burn down) and use the
external 250 Ohm resistor with 1W.

Section 3- HART Introduction HART Frame
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3.3 HART Frame
The HART frame format is shown as below
Field
Description
Preamble
All frames transmitted by HART master or slave devices are preceded by a specified
number of "0xFF" characters and they are called the preamble. The number of preamble
can’t be less than 5 and more than 20
Delimiter
This data can indicate the frame is long or short frame and the frame is master frame,
slave frame or burst frame.
Address
If the HART frame is short frame, the address field is only one byte. If it is long frame, the
address field are 5 bytes and include manufacturer ID, device type and device ID.
Command
The HART command set can be devided into Universal, Common Practice and
Device-Speific class. These three class shown as below：
Command Number
Command Class
Universal
0~30, 31 is reserved
Common Practice
32~126, 127 is reserved
Device-Specific
128~253
Reserved
254 & 255
Please refer to Appendix A for more detail of HART command
Byte Count
It is the number of bytes between it and the check byte the end of the HART frame.
Response
Code
It includes two bytes of status. These bytes convey three types of information:
Communication errors, Command response problems and Field device status. They are
shown as below.
Response
Code Data
Byte1
Byte0
NOTE：When first byte shows the communication error, the value of the second byte is 0
Byte 0 represents the communication error or response code
This byte is used for error status when Bit7 is 1. The status bits are shown as follow
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
1
Parity
Error
Overrun
error
Framing
Error
Checksum
error
0(Reserve
d)
RX buffer
overflow
Overflow
(Undefine)