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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