Gemotech RemoDAQ-9X20 Series User manual

V1.2 2009-2-26
RemoDAQ-9X20 Series
(Distributed DA&C System Based on Ethernet)
User’s Manual
Beijing Gemotech Intelligent Technology Co.，Ltd

RemoDAQ-9X20 Series User’s Manual
Table of Contents
1 Understanding Your System................................................................. 3
1.1 Introduction................................................................................... 3
1.2 Major Features .............................................................................. 4
1.2.1 Communication Network..................................................... 4
1.2.2 Modbus/TCP Protocol............................................................. 5
1.2.3 Hardware Capacity & Diagnostic...................................... 6
1.2.4 Communicating Isolation..................................................... 7
1.2.5 Built-in real-time OS and watchdog timer........................ 7
1.2.6 Software Support..................................................................... 8
1.2.7 Security Setting..................................................................... 8
1.2.8 UDP Data Stream.................................................................... 9
1.2.9 Modbus Ethernet Data Gateway....................................... 9
1.3 Technical specification of RemoDAQ-9X20 System ................ 10
1.3.1 System................................................................................... 10
1.3.2 Ethernet Communication.......................................................11
1.3.3 Serial Communication.........................................................11
1.3.4 Power..................................................................................... 12
1.3.5 Isolation................................................................................. 12
1.3.6 Environment.......................................................................... 12
1.3.7 Dimensions.......................................................................... 13
1.3.8 Basic Function Block Diagram......................................... 14
1.4 LED Status of RemoDAQ-9X20 main unit............................... 14
２Choose Hardware Components......................................................... 16
2.1 Selecting I/O Module .................................................................. 16
2.2 Selecting Power Supply .............................................................. 23
2.3 Selecting LinkTerminal and Cable.............................................. 26
2.4 Selecting Operator Interface ....................................................... 29
3 Hardware Installation Guide .................................................. 30
3.1 Installing your main unit and module.......................................... 30
Figure 3-2: Secure the module to the system.................................... 32
3.2 Mounting .................................................................................... 32
3.2.1 Panel mounting................................................................... 32
Figure 3-3: RemoDAQ-9X20 panel mounting screw placement... 33
3.2.2 DIN rail mounting................................................................. 33
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RemoDAQ-9X20 Series User’s Manual
3.3 Wiring and Connections.......................................................... 35
3.3.1 Power supply wiring........................................................... 36
3.3.2 I/O modules wiring............................................................. 37
3.3.3 System Network Connections............................................... 39
3.4 Assigning address for I/O Modules....................................... 42
4 I/O Modules........................................................................................ 43
5 System Hardware Configuration ............................................... 45
5.1 System Hardware Configuration................................................ 46
5.2 Install Utility Software on Host PC............................................. 47
5.3 RemoDAQ-9X20 Windows Utility Overview............................ 47
5.3.1 Main Menu ............................................................................ 48
5.3.2 Ethernet Network Setting..................................................... 52
5.3.3 I/O Module Canfiguration ...................................................... 55
5.3.4 Alarm Setting ........................................................................ 62
5.3.5 Security Setting..................................................................... 63
5.3.6 Terminal Emulation............................................................... 65
5.3.7 Data Gateway Setting ........................................................... 66
6 Planning Y our Application Pr ogram ........................................ 68
6.1 RemoDAQ-9X20 Command....................................................... 68
6.1.1 Command Structure .............................................................. 68
6.1.2 Modbus Function Code Introduction.................................... 70
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RemoDAQ-9X20 Series User’s Manual
1 Understanding Your System
1.1 Introduction
Undoubtedly, Ethernet connectivity is becoming to a big
trend for industrial applications. Longer communication
distances, faster communication speeds, and greater
advantages attract people into developing their system based
upon this network scenario. But there used to be a thresh-
old in connecting information layers and field control layers.
People usually had to prepare a data exchange server between
information systems and control systems as a communication
bridge. Obviously, it takes a lot of time and money. To meet
user’s requirements, GEMOTECH announces the new
DA&C system, the RemoDAQ-9X20, the Ethernet I/O
solution for people developing their eAutomation
architecture. It can be applied to various applications, such
as traffic, building, telecom, water treatment, and others. See
figure 1-1.
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RemoDAQ-9X20 Series User’s Manual
Figure 1.1:Apply to System Application
1.2 Major Features
1.2.1 Communication Network
By adopting a 32-bit RISC CPU, the
RemoDAQ-9X20 has greatly advanced data
processing abilities for the user, especially for network
communications (response time < 5ms). There is a
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RemoDAQ-9X20 Series User’s Manual
standard RJ-45 modular jack Ethernet port on the
RemoDAQ-9X20’S CPU board, and I/O modules field
signals would be able to link with the Ethernet directly
without assistance from other hardware devices such as
converters or data gateways. The communication speeds can
be auto-switched between 10 M and 100 Mbps data transfer
rate depending upon the network environment. Through an
Ethernet network, your DA&C systems, computer
workstations, and higher-level enterprise MIS servers can
access plantfloor data. Such data can be used in system
supervising, product scheduling, statistical quality control,
and more.
1.2.2 Modbus/TCP Protocol
Modbus/TCP is one of the most popular standards for
industrial Ethernet networks.Followingthiscommunication
protocol, the RemoDAQ-9X20 is easy to integrate with any
HMI software packages or user-developed applications that
support Modbus. Users do not have to prepare a specific
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RemoDAQ-9X20 Series User’s Manual
driver for the RemoDAQ-9X20 when they install the DA&C
system with theirown operating application.It will certainly
reduceengineer effort. Moreover, the RemoDAQ-9X20 works
as a Modbus data server. It allows eight PCs or tasks to
access its current data simultaneously from anywhere: LAN,
Intranet, or Internet.
1.2.3 Hardware Capacity & Diagnostic
GEMOTECH’s RemoDAQ-9X20 is designed with a
high I/O capacity and supports all types of RemoDAQ-9000
I/O modules. Providing eight slots for any mixed modules,
this DA&C system handles up to 128 I/O points (four
RemoDAQ-9024s allowed). Different from other main units,
the RemoDAQ-9X20 not only has a higher I/O capacity,
but it also has a smarter diagnostic ability. There are eight
indicators on the front case of the CPU module. Users can
read the system status clearly, including power, CPU,
Ethernet link, Communication active, communication rate,
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RemoDAQ-9X20 Series User’s Manual
and more. In addition, there are also Tx and Rx LEDs on the
Ethernet port, indicating data transfer and reception.
1.2.4 Communicating Isolation
High-speed transient suppressors isolate
RemoDAQ-9X20 Ethernet port from dangerous voltage up
to 1500V
DC power spikes and avoid surge damage to
whole system.
1.2.5 Built-in real-time OS and watchdog timer
The microprocessor also includes a real-time OS and
watchdog timer. The real-time OS is available to handle
several tasks at the same time. The watchdog timer is
designed to automatically reset the microprocessor if the
system fails. This feature greatly reduces the level of
maintenance required and makes the RemoDAQ-9X20
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RemoDAQ-9X20 Series User’s Manual
ideal for use in applications that require a high level of
system performance and stability.
1.2.6 Software Support
Based on the Modbus standard, you can use socket
network programming method to develop your own
applications.
1.2.7 Security Setting
Though Ethernet technology comes with great
benefits in speed and integration, there also exist risks
about network invasion from outside. For this reason, a
security protection design was built into the
RemoDAQ-9X20. Once the user has set the password
into the RemoDAQ-9X20 firmware, important system
configurations (Network, Firmware, Password) can only be
changed through password verification.
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RemoDAQ-9X20 Series User’s Manual
1.2.8 UDP Data Stream
Most of time, each host PC in a DA&C system needs to
regularly request the I/O devices via TCP/IP packs to update
current data. It may cause to data collision and lower
performance on the network, especially when there are
frequent communication between multi-servers and I/O
devices. To reduce the communication loading of the host
computer on your Ethernet network, the RemoDAQ-9X20
also supports UDP (User Datagram Protocol) protocol to
broadcast the data packs to specific IPs without requesting
commands. Users can apply this great feature to implement
Data Stream, Event Trigger, and other advanced functions.
1.2.9 Modbus Ethernet Data Gateway
Much more than an I/O system, RemoDAQ-9X20
provides an RS-485 network interface for other Modbus
devices integration. It works as Ethernet Data Gateway,
upgrading Modbus serial network devices up to Ethernetlayer.
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RemoDAQ-9X20 Series User’s Manual
Maximum 32 Modbus/RTU nodes or 3’rd party products that
supported Modbus protocol are allowed to integrate with an
RemoDAQ-9X20. This great feature enlarges your system
scope, as opposed to other general dummy I/O system.
1.3 Technical specification of RemoDAQ-9X20 System
1.3.1 System
zCPU：ARM 32-bit RISC CPU
zMemory：4MB Flash RAM
zOperating System：Real-time O/S
zTimer BIOS：Yes
zI/O Capacity：8 slots（4 RemoDAQ-9024 allowed）
zStatus Indicator：Power （3.3V ，5V ）， CPU，
Communication（Link，Collide，10/100Mbps，Tx，Rx）
zCPU Power Consumption：5.0W
zReset Push Bottom：Yes
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RemoDAQ-9X20 Series User’s Manual
1.3.2 Ethernet Communication
• Ethernet:10BASE-TIEEE802.3
100BASE-TXIEEE802.3u
• Wiring: UTP, category 5 or greater
• BusConnection:RJ45 modularjack
• Comm.Protocol:Modbus/TCP
• DataTransferRate: Upto 100 Mbps
• MaxCommunicationDistance:100meters
• EvenResponseTime:<5ms
• DataStreamRate:50 ms to 7 days
1.3.3 Serial Communication
• RS-485 signals: DATA+, DATA-
• Mode:Halfduplex,multi-drop
• Connector:Screw terminal
• Transmission Speed:Up to 115.2Kbps
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RemoDAQ-9X20 Series User’s Manual
• Max.TransmissionDistance:4000feet(1220m)
1.3.4 Power
• Unregulated10 to30V
DC
• Protection: Over-voltage and power reversal
1.3.5 Isolation
• EthernetCommunication:1500V
DC
• I/OModule:3000V
DC
1.3.6 Environment
zOperating Temperature：-10~70℃（14~158℉）
zStorage Temperature：-25~85℃（-13~185℉）
zHumidity：5%~95%，non-condensing
zAtmosphere：No corrosive gases
NOTE: Equipment will operate below 30% humidity.
However, static electricity problems occur much
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RemoDAQ-9X20 Series User’s Manual
more frequently at lower humidity levels. Make sure
you take adequate precautions when you touch the
equipment. Consider using ground straps, anti-static
floor coverings, etc. if you use the equipment in low
humidity environments.
1.3.7 Dimensions
The following diagrams show the dimensions of the
system unit and an I/O unit. Alldimensionsare inmillimeters.
Figure 1-2: RemoDAQ-9X20 system & I/O module
dimensions
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RemoDAQ-9X20 Series User’s Manual
1.3.8 Basic Function Block Diagram
Figure 1-3: Function block diagram
1.4 LED Status of RemoDAQ-9X20 main unit
There are eight LEDs on the RemoDAQ-9X20 front
panel. The LEDs indicate RemoDAQ-9X20’s system status,
as explained below:
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RemoDAQ-9X20 Series User’s Manual
Figure 1-4: RemoDAQ-9X20 LED Indicators
(1) 3.3V:Red indicator. This LED isnormal on when
ARMCPUispowered on.
(2) 5V: Red indicator. This LED is normal on when
RemoDAQ-9X20 system is powered on.
(3) Run: Green indicator. This LED is regularly blinks
whenever the RemoDAQ-9X20 system is running.
(4) Link: GreenIndicator.ThisLED is normal on
whenever the RemoDAQ-9X20’s Ethernet wiring is
connected.
(5)Tx: Green indicator. This LED is designed for the
spare function (COM port transit indicator) in the
future.
(6) Rx: Green indicator. This LED is designed for the
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RemoDAQ-9X20 Series User’s Manual
spare function (COM port receive indicator) in the
future.
(7) Collide: Green indicator. This LED blinks
whenever there is the Ethernet data pack collision.
(8) Speed: Green indicator. This LED is onwhen the
Ethernetcommunication speed is 100 Mbps.
(9) Rx(RJ-45): Greenindicator.This LED blinks
wheneverthe RemoDAQ-9X20 transmitting data to
Ethernet.
(10)Tx(RJ-45):Yellowindicator.ThisLEDblinks
whenevertheRemoDAQ-9X20 receiving datafrom
Ethernet.
２Choose Hardware Components
2.1 Selecting I/O Module
To organize a RemoDAQ-9X20 data acquisition &
control system, you need to select I/O modules to interface
the main unit with field devices or processes that you have
previously determined. There are several things should be
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RemoDAQ-9X20 Series User’s Manual
considered when you select the I/O modules.
What type of I/O signal is applied in your system?
How much I/O is required to your system?
How will you place the main unit for concentrate the
I/O points of an entire process.
How many RemoDAQ-9X20 main units are required for
distributedI/O points arrangement.
What is the required voltage range for each I/O module?
What isolation environment is required for each I/O
module?
What are the noise and distance limitations for
each I/O module? Refer to table 2-1 I/O as module
selection guidelines.
C h oose t hi s t y p e
o f
I/
O m od ul e :
Fo r t he se typ e s o f
f i e l d d e vi ce s or
op e r a t i ons
(e xa m p l e s ) :
Exp l a n a t i o n:
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RemoDAQ-9X20 Series User’s Manual
D i scr ete i n put
modu le and b l o ck
I/ O m odul e
S e lect or swi t ch es,
pu shbu tt on s, ph ot oelect ri c
eyes, li m it s wit c h e s , ci r c u it
br eaker s, pr o x i m it y
s wit c hes, level swit ches,
m o t o r s t a rt er con t act s,
r e l a y con t act s, t humbwh eel
sw it ches
I npu t m od ules sense
O N / O FF o r
O P ENED / C L O S E D
s ig nal s . D iscr et e
sign als can be ei t h er
ac o r dc.
D i scr ete out pu t
m odul e and b l o ck
I/ O m odul e
A l ar m s , c on tr ol r e lays,
f a n s , l igh t s, ho r n s, valves,
m o t o r s t a rt er s, soleno ids
O u t put modu le
si gnals i n t e rf ace w i th
O N/O FF o r
O P ENED /CL OSE D
devices. D i scr et e
s i gnals can be eit h er
ac or dc.
A n alo g i npu t m od ul e
T h e r m o c oup le si gnals ,
R T D sign als, t e m p erat ur e
tr a nsducers, pr essur e
tr ansducer s, load cel l
C onver t c on ti nu ous
analo g si gnals in t o i npu t
valu e s f or
RemoDAQ-9X20
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RemoDAQ-9X20 Series User’s Manual
tr a nsd u cers, hu m i di t y
tr ansdu c e r s, fl ow
tr an s d ucers,
po te n ti o me t e r s .
A n alo g ou t put
m odu le
A n alo g valves, act uat o r s ,
char t r ecor d er s, el ect ri c
mot o r dr ives, anal og
me t e r s
In te rp re t
RemoDAQ-9X20 ou tp u t
to anal og sign als
( g e ner a ll y t hr ough
tr ansducer s) f o r fi e ld
devices.
Table 2-1: I/O Selection Guidelines
GEMOTECH provides 15 types of
RemoDAQ-9000 I/O modules for various applications so
far. The figure 2-1 and table 2-2 will help you to slect the
RemoDAQ-9000I/Omodules quickly and easily.
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