ICP DAS USA HRT-710 User manual

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 1
TM
HRT-710
User’s Manual
Version 1.24

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 2
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, or for any infringements of patents or other right of third parties
resulting from its use.
Copyright
Copyright 2012 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks of
their respective companies.

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 3
Table of Contents
1. Introduction 5
1.1 Features 5
1.2 Modbus Function Code Support 6
1.3Specifications 6
2. Hardware 8
2.1 Block Diagram 8
2.2 Pin Assignment 8
2.3 Wiring 9
2.4LED indicator 13
2.5DIP Switch 14
2.6Jumper 15
3. HART Introduction 16
3.1 Analog and Digital signal 16
3.2 Network topology 17
3.3 HART Frame 18
4. Modbus Communication 22
4.1 Module Execution Process 22
4.3 Modbus / HART Mapping Table 22
4.4 Diagnostic Messages 28
4.5 Through Mode 28
4.6Data Exchange Example 29
5. HG_Tool Application 33
5.1 Install .NET Compact Framework 33
5.2 Install HG_Tool 34
5.3 HG_Tool Function 37
5.4 Establish connection with HRT-710 60
6. Troubleshooting 63
7. FAQ 64
Q01 : How to add HART devices to HRT-710 ? 64
Q02 : How to make sure that HRT-710 gets the HART device data correctly ? 67
Q03 : How to map HART device CMD(3) data directly to SCADA or HMI ? 70
Q04 : How to update the firmware of HRT-710 ? 78
Q05 : How to read HART device CMD1 data with standard format by Modbus ?80
Q06 : How to read HART device CMD 3 data with standard format by Modbus ?
83
Q07 : How to know the connection status between HRT-710 and HART devices ?
85
Q08 : How to integrate Active and Passive HART devices in multi-drop network ?
87
Q09 : How to integrate multiple HRT-710 modules in the same project ? 88
Q10 : How to integrate HART comm. device with RS-232 hardware interface ? 90
Q11 : How to add the HART Device-Specific command to HRT-710 ? 90
Q12 : How to set HART device address by HRT-710 utility ? 93

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 4
8. Dimensions 96
Appendix A: HART Command 98
Appendix B: Command Format 103
Appendix C: Version History 104

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 5
1. Introduction
Modbus and HART are two kinds of famous protocols and used wildly in
the fields of factory and process automation. The HRT-710 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-710 module.
Figure 1:Application architecture of the HRT-710 module
The main features and specification of HRT-710 are described as below :
1.1 Features
●Support HART Short/Long frame.
●Support HART Burst mode.
●Allow two HART Masters.
●Support Modbus RTU and ASCII format.
●Support Modbus Slave / HART Master mode.
●Support firmware update via Com Port. (FW_v1.2 and HW_v1.2)
●Support on-line replacement of HART devices. (FW_v1.5)
●Support acquire Long Frame Address automatically (FW_v1.5)
●Isolated COM 1:RS-232/422/485.
●Provide LED indicators.
●Built-in Watchdog.
●DIN-Rail or Wall Mounting.

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 6
1.2 Modbus Function Code Support
HRT-710 supports the following Modbus Function Code commands.
[ Table 1: Modbus Function Codes ]
FC
Description
01
Read multiple coils status
02
Read multiple input discretes
03
Read multiple Holding registers
04
Read multiple input registers
05
Write single coil
06
Write single register
15
Force multiple coils
16
Write multiple registers
1.3Specifications
[ UART Spec. ]
●COM1:RS-232(3 wire) / RS-422 / RS-485
●Connector:9-pin screwed terminal block
●Baud Rate:1200 ~ 115200 bps
●Data Format:
[1] data bits :7/8
[2] parity :None/Odd/Even
[3] stop bit :1/2
[ HART Spec. ]
●Channel number:1
●Connector:2-pin screwed terminal block
●Operates as a HART Master station and supports all HART commands
●Frame:Short or Long
●Network:Point to Point or Multi-drop
●Max. 15 HART modules
●Max. 100 user commands and 32 default commands
[ Power Requirement ]
●Unregulated +10 ~ +30 VDC
●Power reverse protection, Over-Voltage brown-out protection
●Power consumption:1 W

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 7
[ Module Spec. ]
●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
●LED Status Indicators (Table 2)
[ Table 2: LED status indicator ]
PWR LED
Show the power state
ERR LED
Show error state
RUN LED
Show HART communication state

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 8
2. Hardware
2.1 Block Diagram
Figure 2:Block diagram of HRT-710
2.2 Pin Assignment
Figure 3: Pin assignment of HRT-710

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 9
[ Table 3: Screw terminal block ]
Pin
Name
Description
1
HART+
Positive of HART
2
HART-
Negative of HART
3
-
N/A
4
-
N/A
5
-
N/A
6
-
N/A
7
-
N/A
8
-
N/A
9
+VS
V+ of Power Supply(+10 ~ +30 VDC)
10
GND
GND of Power Supply
11
RXD
Receive Data of RS-232
12
TXD
Transmit Data of RS-232
13
GND
GND of RS-232
14
RX+
Receive Data+ of RS-422
15
RX-
Receive Data- of RS-422
16
TX+
Transmit Data+ of RS-422
17
TX-
Transmit Data- of RS-422
18
-
N/A
19
D+
Data+ of RS-485
20
D-
Data- of RS-485
2.3 Wiring
It is recommended to use only one serial port interface (RS232,
RS422 or RS485) of the HRT-710 module at the same time. The following
section describes the necessary steps to connect one of the three COM
port types to a Modbus network.
2.3.1 RS-232 Wiring
The RS-232 port of the HRT-710 has only three pins. The wiring of
the RS-232 device with the RS-232 port of the HRT-710 is shown as
Figure 4.

HRT-710 User Manual (Version 1.24, June/2015) PAGE: 10
Figure 4:RS-232 wiring diagram
2.3.2 RS-485 Wiring
The RS-485 wiring is shown as Figure 5.
Figure 5:RS-485 wiring diagram
2.3.3RS-422 Wiring
The RS-422 wiring is shown as Figure 6.