Gemotech RemoDAQ-8031A User manual

V1.1 2009.02.13
RemoDAQ-8031A
RemoDAQ-8033A
RemoDAQ-8034
User’s Manual
Beijing Gemotech Intelligent Technology Co.，Ltd

RemoDAQ-8031A/33A/34 User’s Manual
Copyright Notice
This document is copyrighted, 2005, by Beijing Gemotech
Intelligent Technology Co.，Ltd.
All rights are reserved. Beijing Gemotech Intelligent
Technology Co.，Ltd reserves the right to make
improvements to the products described in this manual at any
time without notice.
No part of this manual may be reproduced, copied,
translated or transmitted in any form or by any means without
the prior written permission of Beijing Gemotech Intelligent
Technology Co.，Ltd. Information provided in this manual is
intended to be accurate and reliable. However, Beijing
Gemotech Intelligent Technology Co.，Ltd assumes no
responsibility for its use, or for any infringements upon the
rights of third parties, which may result from its use.
Acknowledgments
RemoDAQ is a trademark of Beijing Gemotech Intelligent
Technology Co.，Ltd.
Edition 1.1
Feb. 2009
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RemoDAQ-8031A/33A/34 User’s Manual
Additional Information and Assistance
1. Visit the Gemotech websites at www. gemotech.cn in
which you can find the latest information about the product.
2. Contact your distributor, sales representative, or
Gemotech 's customer service center for technical support if
you need additional assistance. Please have the following
information ready before you call：
zProduct name and serial number
zDescription of your peripheral attachments
zDescription of your software (operating system,
version，application software, etc.)
zA complete description of the problem
zThe exact wording of any error messages
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RemoDAQ-8031A/33A/34 User’s Manual
Table of Contents
1 Introduction..............................................................................................4
1.1 PinAssignment & Specifications ..............................................5
1.2 Block Diagram...........................................................................8
1.3 Application Wiring ..................................................................10
1.4 Default Setting.........................................................................10
1.5 Calibration................................................................................10
1.6 Install List ................................................................................12
2 Initialization & Installation....................................................................14
2.1 Installation Guideline...............................................................14
2.2 Software Installation................................................................14
2.3 Basic configuration and hook-up.............................................15
2.4 Baudrate and Checksum ..........................................................17
3 Command Set.........................................................................................19
3.1 %AANNTTCCFF....................................................................22
3.2 #AA..........................................................................................24
3.3 #AAN.......................................................................................25
3.4 $AA0........................................................................................26
3.5 $AA0N.....................................................................................27
3.6 $AA1........................................................................................28
3.7 $AA1N.....................................................................................29
3.8 $AA2........................................................................................30
3.9 $AA30.VVVV .........................................................................31
3.10 $AA3NV.VVVV ...................................................................32
3.11 $AA40±VVV.VV..................................................................33
3.12 $AA4N±VVV.VV .................................................................34
3.13 $AAF......................................................................................35
3.14 $AAM ....................................................................................36
3.15 ~AAO(Data)...........................................................................37
3.16 ~AAEV ..................................................................................38
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RemoDAQ-8031A/33A/34 User’s Manual
1 Introduction
The RemoDAQ-8000 Series is a set of intelligent sensor to
computer interface modules containing built in microproces-
sor. They are remotely controlled through a simple set of
commands issued in ASCII format and transmitted in RS-485
protocol. They provide signal conditioning, isolation, ranging,
A/D and D/A conversion, data comparison, digital commun-
ication, timer/counter, wireless communication, collection
AC and other functions.
RemoDAQ-8031A RTD Module
RemoDAQ-8031A RTD input module supports one RTD
input channel for temperature measurement. This module can
accept 2 wire, 3 wire RTD sensor. The module offers signal
conditioning, A/D conversion, ranging, and RS-485 digital
communication functions.
RemoDAQ-8033A is a three channel RTD input module.
RemoDAQ-8034 is a four channel RTD input module
The common features of analog input modules are given as
following ：
z16-bits sigma-delta ADC to provide excellent accuracy.
z4-channels RTD direct connect
zSoftware calibration
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RemoDAQ-8031A/33A/34 User’s Manual
1.1 Pin Assignment & Specifications
RemoDAQ-8031A Specifications：
Input channel 1
Input type 2,3 wire
RTD type Pt100；Cu100；Cu50
Output
Speed (in bps)
Maximum distance
RS-485 (2-wire)
1200,2400,4800,9600,19.2K,38.4K,57.6K,115.2K
4000ft. (1200m.)
Conversion rate 10samples/sec (60/50Hz)
Bandwidth 5.24Hz
Accuracy ±0.1% or better
Zero drift 0.5µV/°C
Span drift 1.0µV /°C
CMR@50/60Hz 150dB
NMR@50/60Hz 100dB
Isolation voltage 3000VDC
Power supply 10~30VDC
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RemoDAQ-8031A/33A/34 User’s Manual
Power consumption 1.0W
Operating Temperature：-20 ~ 70° C
Environment Humidity：5 ~ 95%, non-condensing
RemoDAQ-8033A Specifications：
Input channel 3
Input type 2,3 wire
RTD type Pt100；Cu100；Cu50
Output
Speed (in bps)
Maximum distance
RS-485 (2-wire)
1200,2400,4800,9600,19.2K,38.4K,57.6K,115.2K
4000ft. (1200m.)
Conversion rate 10 samples/sec (60/50Hz)
Bandwidth 5.24Hz
Accuracy ±0.1% or better
Zero drift 0.5µV/°C
Span drift 1.0µV /°C
CMR@50/60Hz 150dB
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RemoDAQ-8031A/33A/34 User’s Manual
NMR@50/60Hz 100dB
Isolation voltage 3000VDC
Power supply 10~30VDC
Power consumption 1.0W
Operating Temperature：-20 ~ 70° C
Environment Humidity：5 ~ 95%, non-condensing
RemoDAQ-8034 Specifications：
Input channel 4
Input type 4 wire
RTD type Pt100；Cu100；Cu50
Output
Speed (in bps)
Maximum distance
RS-485 (2-wire)
1200,2400,4800,9600,19.2K,38.4K,57.6K,115.2K
4000ft. (1200m.)
Conversion rate 10 samples/sec (60/50Hz)
Bandwidth 5.24Hz
Accuracy ±0.1% or better
Zero drift 0.5µV/°C
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RemoDAQ-8031A/33A/34 User’s Manual
Span drift 1.0µV /°C
CMR@50/60Hz 150dB
NMR@50/60Hz 100dB
Isolation voltage 3000VDC
Power supply 10~30VDC
Power consumption 1W
Operating Temperature：-20 ~ 70° C
Environment Humidity：5 ~ 95%, non-condensing
1.2 Block Diagram
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RemoDAQ-8031A/33A/34 User’s Manual
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RemoDAQ-8031A/33A/34 User’s Manual
1.3 Application Wiring
2-wire RTD connection 3-wire RTD connection
1.4 Default Setting
zAddress：01
zRTD type：Type 20，Pt100,-100℃~+100℃
zBaudrate：9600 bps
zChecksum disable,60Hz rejection，engineer unit format
zFilter at 60 Hz rejection (except R-8036)
1.5 Calibration
What do you need to do calibration?
1. One 5 1/2 digital multimeter.
2. A voltage calibrator or very stable and noise free DC
voltage generator.
3. A precision resistance decade box or discrete resistors.
4
.RemoDAQ-8000 Utility.
Calibrate Order：(RemoDAQ-8031A)
1. Connect calibration resistor to module by 3-wire RTD
2. Apply power to the module and let it warm up for about 30 minutes
3. Setting type
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RemoDAQ-8031A/33A/34 User’s Manual
4. Enable calibration
5. Apply zero calibration resistance 001.00 Ohms
6. Perform $AA40±VVV.VV Command,output resistor
value 001.00
7. Perform Zero Calibration Command$AA1
8. Apply span calibration resistance 200.00Ohm
9. Perform $AA30V.VVVV Command，output resistor
value 200.00
10. Perform span calibration command $AA0
Calibrate Order：(RemoDAQ-8033A)
1. Connect calibration resistor to module by 3-wire RTD
2. Apply power to the module and let it warm up for about 30 minutes
3. Setting type
4. Enable calibration
5. Apply zero calibration resistance 001.00 Ohms
6. Perform $AA4N±VVV.VV Command,output resistor
value 001.00
7. Perform Zero Calibration Command$AA1N
8. Apply span calibration resistance 200.00Ohm
9. Perform $AA3NV.VVVV Command,output resistor
value 200.00
10. Perform span calibration command $AA0N
11. 0~2 channel is calibrated according to 5~10 step
Calibrate Order：(RemoDAQ-8034)
1. Connect calibration resistor to module by 3-wire RTD
2. Apply power to the module and let it warm up for about 30 minutes
3. Setting type
4. Enable calibration
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RemoDAQ-8031A/33A/34 User’s Manual
5. Apply zero calibration resistance 001.00 Ohms
6. Perform $AA4N±VVV.VV Command,output resistor
value 001.00
7. Perform Zero Calibration Command$AA1N
8. Apply span calibration resistance 200.00Ohm
9. Perform $AA3NV.VVVV Command,output resistor
value 200.00
10. Perform span calibration command $AA0N
11. 0~3 channel is calibrated according to 5~10 step
1.6 Install List
Baudrate Setting (CC)
Code 03 04 05 06 07 08 09 0A
Baudrate 1200 2400 4800 9600 19200 38400 57600 115200
RTD type setting (TT)
Code RTD type Temperature Range
20 Pt100 -200 ~ 400
21 Cu100 -50 ~ 150
22 Cu50 -50 ~ 150
Data format setting（FF）
7 6 5 4 3 2 1 0
*1 *2 0 *3
*1：0=60Hz Restrain 1=50Hz Restrain
*2：Checksum：0=Disabled 1=Enable
*3：00 = Engineering Unit Format
01 = Percentage Format
10 = 2’s Complement HEX Format
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RemoDAQ-8031A/33A/34 User’s Manual
11 = Ohms
Analog Input Type And Data Format Table
Code Input span Data format +F.S. -F.S
Project Unit +400.00 -200.00
%（FSR）+100.00 -050.00
2’s Complement HEX 7FFF BFFF
20
Platinum 100
a=0.00385
-200~400℃Ohm +247.09 +018.52
Project Unit +150.00 -50.00
%（FSR）+100.00 -033.33
2’s Complement HEX 7FFF D554
21 Cu100
-50~150℃
Ohm +164.27 +078.49
Project Unit +100.00 +000.00
%（FSR）+100.00 -033.33
2’s Complement HEX 7FFF D554
22 Cu50
0~100℃
Ohm +082.13 +039.24
RTD Over range / Under range Reading
Over rang Under range
Project Unit [phone]
%（FSR）[phone]
2’s Complement HEX 7FFF 8000
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RemoDAQ-8031A/33A/34 User’s Manual
2 Initialization & Installation
2.1 Installation Guideline
Figure 2-1 Power Supply Connections
We advise that the following standard colors (as indicated
on the modules) be used for power lines：
+Vs (R) Red
GND (B) Black
We advice that the following standard colors (as indicated
on the modules) be used for the communication lines：
DATA+ (Y) Yellow
DATA- (G) Green
2.2 Software Installation
1. If you have already installed “RemoDAQ-8000 Utility”
then skip other steps.
2. Backup your software diskette.
3. Insert “RemoDAQ-8000 Utility” disc into CD-ROM：
4. Change drive to the path of CD-ROM. For example,
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RemoDAQ-8031A/33A/34 User’s Manual
your drive of CD-ROM is F：then change the drive to F：
5. Find the setup of “RemoDAQ-8000 Utility” and run it.
6. Please follow the steps of setup program then you can
successful to install the RemoDAQ-8000 Utility
2.3 Basic configuration and hook-up
Before placing a module in an existing network, the
module should be configured. Though all modules are
initially configured at the factory, it is recommended to check
that the baud rate is set correctly.
Default Factory Settings
Baud rate：9600 Bit/sec.
Address：01 (hexadecimal)
Checksum：disable
The basic hook-up for module configuration is shown below.
Figure 2-2 Layout for Initialization the RemoDAQ module
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RemoDAQ-8031A/33A/34 User’s Manual
The following items are required to configure a module：a
RemoDAQ converter module, a personal computer with RS-
232 port (baudrate set to 9600) and theRemoDAQ utility software.
Configuration with the RemoDAQ Utility Software
The easiest way to configure the RemoDAQ module is by
using the RemoDAQ utility software：an easy-to-use menu-
structured program will guide you through every step of the
configuration.
Configuration with the RemoDAQ command set
RemoDAQ modules can also be configured by issuing
direct commands from within a terminal emulation program
that is part of the RemoDAQ utility software.
The following example guides you through the setup of an
analog input module. Assume that RemoDAQ-8031A still has
its default settings (baud rate 9600 and address 01h). Before
the module is reconfigured, it is first requested to send its
default settings.
To change the configuration setting of the analog input
module, the following command is issued：
%0107200600(cr)
% = change configuration
01 = target module at address 00 to：
07 = change address to 07 hexadecimal
20 = set input range to Type 20
06 = set baud rate to 9600
00 = set integration time to 50 ms (60 Hz)
disable checksum
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RemoDAQ-8031A/33A/34 User’s Manual
set data format to engineering units
(See Chapter 3, Command Set for a full description of the
syntax of the configuration command for module)
When the module received the configuration command it will
respond with its new address：!07 (cr).
NOTICE：All reconfiguration except changing of baud rate
and checksum values can be done dynamically, i.e. the
modules need not to be reset. When changing the baud rate or
checksum, these changes should be made for all connected
devices. After reconfiguration, all modules should be
powered down and powered up to force a reboot and let the
changes take effect.
2.4 Baudrate and Checksum
RemoDAQ modules contain EEPROMs to store
configuration information and calibration constants. The
EEPROM replaces the usual array of switches and ports
required to specify baudrate, input/output range etc.
All of the RemoDAQ modules can be configured remotely
through their communication ports, without having to
physically alter port or switch settings.
Forcing the module in the INIT* state does not change any
parameters in the module’s EEPROM. When the module is in
the INIT* state with its INIT* and GND terminals shorted, all
configuration settings can be changed and the module will
respond to all other commands normally.
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RemoDAQ-8031A/33A/34 User’s Manual
Changing Baud rate and Checksum
Baud rate and checksum settings have several things in common ：
¾ They should be the same for all modules and host computer.
¾ Their setting can only be changed by putting a module in the
INIT* state.
¾Changed settings can only take effect after a module is rebooted.
To alter baudrate or checksum settings you must perform the
following steps：
¾Power on all components except the RemoDAQ Module.
¾Power the RemoDAQ module on while shorting the
INIT* and GND terminals.
¾Wait at least 7 seconds to let self calibration and ranging
take effect.
¾Configure the checksum status and/or the baud rate.
¾Switch the power to the RemoDAQ Module OFF.
¾Remove the grounding of the INIT* terminal and power
the module on.
¾Wait at least 7 seconds to let self calibration and ranging
take effect.
¾Check the settings (If the baud rate has changed, the
settings on the host computer should be changed
accordingly.)
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RemoDAQ-8031A/33A/34 User’s Manual
3 Command Set
Introduction
To avoid communication conflicts when several devices try
to send data at the same time, all actions are instigated by the
host computer. The basic form is a command/response
protocol with the host initiating the sequence.
When modules are not transmitting they are in listen mode.
The host issues a command to a module with a specified
address and waits a certain amount of time for the module to
respond. If no response arrives, a timeout aborts the sequence
and returns control to the host.
Changing RemoDAQ’s configuration might require the
module to perform auto calibration before changes can take
effect. Especially when changing the range, the module has to
perform all stages of auto calibration that it also performs
when booted. When this process is under way, the module
does not respond to any other commands.
The command set includes the exact delays that might
occur when modules are reconfigured.
Syntax
[delimiter character][address][command][data][checksum]
[carriage return]
Every command begins with a delimiter character. There
are four valid characters：a dollar sign $, a pound sign #, a
percentage sign % and an at sign @.
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