Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 62)

<1. Overview>
1-35
IM 11B08A01-01E
(2) PC Software and Network
In addition to the GC-HMI, the GC8000 analyzer can be connected to PC software (ASET and
PCAS) which is provided as the GC8000 operation interface.
The GC8000 analyzer can be added to and connected with the existing network which GC1000
MarkIIs are connected via Ethernet or the analyzer bus.
F0116.ai
DCS DCS
DI/O
RS-232C
Ethernet
PC PC STARDOM FCJ
STARDOM FCN
GC8000
Process Gas Chromatograph
Analyzer Server
Interface Unit
Engineering Terminal Gateway Unit [ ] describes the function.
GC8000
GC1000 MarkII
Network management,
Auto save
[ ]
Analog output from field devices/
Interface to contact I/O signals [ ]
Exchange data with
the host systems [ ]
Display of operation and
status of gas chromatograph [ ]
GC8000 The analyzer installed on the site (Process gas chromatograph)
GC1000 MarkII The analyzer installed on the site (Process gas chromatograph)
ASET Analyzing server engineering terminal software
Operates and displays the analyzers.
PCAS PC analyzer server software
Manages the network and automatically saves data.
DCS Distributed control system
The upper system of analyzers
ASGW Analyzer server gateway software
Exchanges data with the upper system by using the STARDOM FCJ.
ASIU Analyzer server interface unit software
Serves as an interface with the network for analog output signals of fi eld devices except
for process gas chromatographs or input/output of contact signals.
Figure 1.15 Example of the structure of Ethernet and analyzer bus system
1.11.2 User Level
The display of the status, operation, change of settings, and display of analysis data of the
analyzer performed on the GC-HMI (touch panel) are limited depending on the user level.
EtherLCD is a function which consolidates the settings for display of I/O and Ethernet connection
status of analyzers under connection; operation of I/O, user program, and detectors; and
parameters of hardware confi guration, analysis method, and I/O, which are mainly used for
maintenance among general settings from the GC-HMI.
Since this is equivalent to the functions of EtherLCD (display and operation), which is the human-
machine interface of the GC1000 Mark II, excluding operation and display of analysis data, the
term “EtherLCD” is used in the GC8000.
User-level settings for EtherLCD are independent of other screens of the GC-HMI (analyzer
overview, etc.), and so they must be set separately.
The operation of the PC software (ASET and PCAS) is also limited based on the user level.
For more information, refer to each chapter of GC-HMI, ASET, and PCAS.
2nd Edition : May 11, 2012-00
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