A. SYSTEM OVERVIEW
A. System Overview
A1. System Specifications
System
Max. no. of monitoring tags
Max. no. of stations
Max. no. of domains
Max. no. of stations per domain
CS 1000
8000
24
1
HIS (8)
FCS (16)
CS 3000
100 000
256
16
64 (HIS (16) , FCS, BCV,
CGW)
A2. System Components
This chapter describes each of the CENTUM CS 1000/3000 system components.
. Human Interface Stations (HIS)
The HIS is mainly used for operation and monitoring – it displays process variables,
control parameters, and alarms necessary for users to quickly grasp the operating
status of the plant.
It also incorporates open interfaces so that supervisory computers can access trend
data, messages, and process data.
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A. SYSTEM OVERVIEW
Hardware Requirements
Runs on a general-purpose personal computer (IBM PC/AT-compatible) which
meets the following requirements:
CPU :
Pentium 300 MHz or faster
Main Memory : 96 MB or larger (More memory is required to use optional
software packages, engineering functions or general-purpose
software)
Hard disk :
4 GB or bigger (Keep at least 500 MB for user area)
CRT display : 1024 X 768 or more; 256 colors or more
(Video memory : 2 MB or more; CRT : multi-scan 17-inch or
better recommended)
Serial port :
One or more RS-232C port
Parallel port : One or more ports
Expansion slot : Uses one PCI slot for control bus interface (VF701)
Software Requirement
Windows 2000 (Professional) Service Pack 1 & above
Two types of HIS:
. Desktop Type
Uses a general purpose PC.
. Console Type
Consists of a console assembly and a general purpose PC. It can be of dual
stacked CRT or or LCD and of touch panel function. Two types of console type
HISs:
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A. SYSTEM OVERVIEW
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A. SYSTEM OVERVIEW
. Engineering PC (ENG)
The PC with engineering functions used to perform CENTUM CS 3000 system
generation and maintenance management.
. Field Control Station (FCS)
FCS performs process control, and manages communication with subsystems such
as PLCs. The control station is used to generate the control function where the
process variables are read and control calculation is carried out in the processor
cards to determine the control output to be sent to the field.
Two types of FCS :
. Standard FCS (LFCS and KFCS) – Available in CS 3000 System.
LFCS is one in which the input/output modules is installed in Remote I/O (RIOs)
are connected via RIO bus.
KFCS is one in which input/output modules is installed in Fieldnetwork I/Os (FIOs)
are connected via Extended Serial Backboard bus and Enhanced Remote bus.
Model
AFS10S
AFS10D
AFS20S
AFS20D
AFS30S
AFS30D
AFS40S
AFS40D
Type
Field Control Station (19” rack mountable type)
Duplexed Field Control Station (19” rack mountable type)
Field Control Station (with cabinet)
Duplexed Field Control Station (with cabinet)
Field Control Station (for FIO, 19” rack mountable type)
Duplexed Field Control Station (for FIO, 19” rack
mountable type)
Field Control Station (for FIO, with cabinet)
Duplexed Field Control Station (for FIO, with cabinet)
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A. SYSTEM OVERVIEW
. Compact type FCS (SFCS) – Available in both CS 1000 and CS 3000 Systems.
A compact type FCS model (SFCS) connects to RIO direcly, not via RIO bus.
Standard type PFCS in the CS 3000
Model
PFCS-H
PFCD-H
Type
Field Control Station (compact type)
Duplexed Field Control Station (compact type)
Standard type PFCS in the CS 1000
Model
PFCS-S
PFCD-S
PFCS-E
PFCD-E
Type
Field Control Station (standard type)
Duplexed Field Control Station (standard type)
Field Control Station (enhanced type)
Duplexed Field Control Station (enhanced type)
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A. SYSTEM OVERVIEW
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A. SYSTEM OVERVIEW
. Standard type FCS (LFCS)
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A. SYSTEM OVERVIEW
. Standard type FCS (KFCS)
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A. SYSTEM OVERVIEW
. Compact type FCS (PFCS/SFCS)
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A. SYSTEM OVERVIEW
FCS Hardware Description
Power Supply Unit
For the LFCS, the main power distribution board receives a specified power supply
and distributes it to the power distribution boards in the front and two node power
distribution boards in the rear.
Nest power distribution boards distribute the power to the power supply unit(s) of the
FCU and nodes on the front side of the cabinet.
FCU power distribution boards distribute the power to the power supply unit(s) of the
FCU.
Node power distribution boards distribute the power to the nodes on the rear side of
the cabinet.
The power unit in an FCU receives power supply from the power distribution
Board, converts it to an isolated direct-current voltage, and supplies that
DC power to each unit and card in the FCU.
The KFCS node power distribution boards are used to distribute the power from the
main power distribution board to node and FCU power distribution board.
This unit supplies power to the common part of the PFCS/SFCS.
Battery Unit in FCU
Backs up the memory in the processor card during a power failure.
Battery life
3 years
1.5 years
9 months
Temperature
30° C or less
40° C or less
50° C or less
Control Bus Coupler Unit
The coupler is where the Vnet or Vlnet cable is installed into the FCS. It performs
signal isolation and signal level conversion.
RIO Bus Distribution Unit (LFCS)
RIO bus distribution units are provided in the front and rear sides of an LFCS with
cabinet.
Each RIO bus distribution unit connects up to three nodes to the same RIO bus.
The standard RIO bus distribution unit can be used for either a single or dual RIO
Bus.
RIO Bus Interface Card (LFCS)
The RIO bus interface card performs data communication via the RIO bus coupler
unit between multiple nodes connected on the RIO bus.
RIO Bus Coupler Unit (LFCS)
The RIO bus coupler unit couples the RIO bus interface card installed in the FCU to
the RIO bus by modulating and demodulating the signals.
ESB Bus Interface Card (KFCS)
The ESB bus interface card (SB301) performs data communication via the SB401 on
node unit for FIO between I/O modules.
ESB Bus Coupler Unit (KFCS)
The ESB bus coupler unit couples the ESB bus interface card installed in the FCU to
the ESB bus by modulating and demodulating the signals.
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A. SYSTEM OVERVIEW
Fan Units
Used to suppress an increase of the temperature inside the cabinet and prevent a
temperature increase from causing malfunctions and faster deterioration of the parts
In the FCU and nodes.
Node Interface Unit
The NIU offers an interface function to send analog and contact I/O signals from
the field to the Field Control Unit via a RIO bus, and it offers the function to supply
power to the input/output units.
Node
Signal processing devices that convert process input/output signals to or from
The field equipment and transmits them to the field control unit (FCU).
Process Input/Output
Used to exchange signals between field devices and FCSs.
An FCS can receive signals from process detectors and output signals to process
control signals to process control elements.
Processor Card in FCU
The processor card performs control calculations as well as monitors its own CPU
and power supply.
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A. SYSTEM OVERVIEW
A3. Hardware Configuration (Processor Card)
Setting the Domain Number : LFCS/KFCS
A domain stands for a range of stations connected by a single train of the V net.
Set the domain number to a value from 1 to 16.
To set a domain number, set the dip switches as follows.
Bits 2 and 3 must always be zeros (0s).
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A. SYSTEM OVERVIEW
Setting the Station Number : LFCS/KFCS
Set the station number to a value from 1 to 64. To set a station number, set the
dip switches as follows.
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A. SYSTEM OVERVIEW
Dual-Redundant Architecture of FCU : KFCS
• Each processor card unit has two CPUs, which perform the same control
computation. The computation results are compared by a collator during each
computation cycle. If the computation results from the two CPUs match, the collator
determines that the computation is normal and sends data to main memory and bus
interface unit.
• Because the main memory has an ECC (Error-Correcting Code), transient bit
inversion errors occurring in the main memory can be repaired.
• If computation results from CPU1 and CPU2 do not match, the collator decides that
a computation error has occurred, and the control right is transferred to the standby
card.
• The standby processor unit card performs the same computation as the control one,
even though it is in the standby state. Therefore, it can immediately resume the
output of control computation data to the bus interface when it takes over the control
right.
• Self-diagnostics will be executed on the processor unit in which an error has
occurred. If no CPU error is detected as a result of diagnostics, the error will be
taken as a transient computation error, and the unit returns from error state to
standby. The processor unit on standby performs the same computation
concurrently with the control side.
Therefore, CPUs within the same unit collate each other’s computation data, being
sure to detect any computation errors. Because the unit on standby performs the
same control computation concurrently with the control unit, it can take over the
control computation at any point without interruption, even for a very short time.
**NOTE : LFCS same as above except that ESB Bus Interface
(SB301) is replaced by RIO Bus Interface (RB301).
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A. SYSTEM OVERVIEW
Dual-Redundant Architecture of FCU : SFCS
• At the Vnet interface, a communication interface supporting dual-redundancy is
mounted on the CPU and connected to the dual-redundant control bus.
• At the processor unit, control side and standby side CPUs synchronize each other to
perform the same control computation. If an error occurs at the control side CPU,
the synchronous execution hot standby system will transfer the control right to the
standby side CPU without interruption.
• If an invalid access is detected against the main memory or the standby side in the
control side processor unit, processing on the control side will stop immediately and
the control right will be transferred to the standby side. This prevents the destruction
of data inside the local system, as well as at the destination site due to CPU
malfunctions.
• There is a WDT (Watch Dog Timer) in the processor unit to supervise the execution
of control function. Whenever the abnormality in control function is detected, the
control right is switched from control side to the standby side, as if the abnormality is
in the control side processor.
• In the main memory, error-correction coding (ECC) function is provided so that the
transient bit inversion error in the main memory may be repaired.
• The PI/O bus interface has the function to run the PI/O executions on control side
and to diagnostic the PI/O performance by itself. The same diagnostic function is
also running in standby side PI/O bus interface.
When an abnormality occurs in the control side PI/O bus, the control right is
immediately switched to the standby side PI/O, thus the PI/O executions may be
continued.
**NOTE : PFCS same as above except that Vnet Interface is
replaced by VL Net Interface.
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A. SYSTEM OVERVIEW
A4. Network
Network
Transmission Speed
Cable Types
Transmission distance
Access Method
Repeater - Coaxial Cable
- Optical Fiber
Vnet
10 Mbps (real-time control bus)
10 Base 2 ( for HIS)
10 Base 5 (for FCS, CGW, etc)
185 m/segment (for 10 Base 2)
500 m/segment (for 10 Base 5)
Token Passing
Max. 1.6 km, 8 repeaters
Max. 20 km, 4 repeaters
VL Net
10 Mbps (real –time control bus)
10 Base 2 cable ( for stations)
185 m/segment (for 10 Base 2)
Token Passing
Max. 1.6 km, 8 repeaters
Max. 20 km, 4 repeaters
Ethernet
HIS and ENG, HIS and supervisory systems can be connected by an Ethernet LAN;
supervisory computers and personal computers on the Ethernet LAN can access
messages and trend data in the CENTUM CS 3000 system. The Ethernet can also be
used for sending trend data files from the HIS to supervisory computers, for
equalizing HIS databases and for acquiring trend data for other stations, eliminating
the load on the V net.
Vnet/VLnet versus Ethernet
A system with only a single HIS, with engineering functions installed, does not need
Ethernet but in general Ethernet (and corresponding network engineering) is required.
Also, instead of equalizing HIS databases and acquiring trend date for other stations
via the VL net, these can be performed via Ethernet, reducing the load on the VL net.
(Installing Ethernet requires optional network engineering).
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A. SYSTEM OVERVIEW
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A. SYSTEM OVERVIEW
. Bus Converter (BCV)
With the CS 1000 system, the bus converter (BCV) connects the station on the VL
net and the µXL control unit on the RL bus.
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A. SYSTEM OVERVIEW
With the CS 3000 system, the BCV connects the station on the V net and station(s)
on other domain(s).
When you reach the maximum of 64 stations in a domain, you can start a new
domain and link the two domains using a Bus Converter.
Functional Overview - Bus Converter for V net
The Bus Converter for V net is used to connect one domain V net to a CS 3000
system or a system with CS 3000 and CENTUM CS constructed on other domain
V net. It acts as an intermediary in communication between the two, upper level
and lower level, V nets. It facilitates communication with a hierarchical structure
so that all stations connected to the lower level V net can be put under the
integrated supervision of the stations of the upper level V net. When CS 3000 is
connecting to a CENTUM CS system. CS 3000 will be in upper level and
CENTUM CS will be in lower level.
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A. SYSTEM OVERVIEW
. Communication Gateway Unit (CGW)
The communication gateway unit is a gateway that connects the supervisory
computer with the VL net or V net, which are the control communication networks for
the CS 1000 system and CS 3000 system, respectively.
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