Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 39)

<7. ARCNET>
7-1
IM 11B06E01-01E
7. ARCNET
The New ARCNET-based bus system enables connection between an ARCNET system
and an Ethernet system. This realizes addition of Ethernet analyzers to existing ARCNET
systems.
A typical network configuration of analyzer bus is shown in Figure 7.1.
The network consists of analyzers (Gas chromatograph etc.) and "Analyzer bus sys-
tems for ARCNET". This "Analyzer bus systems for ARCNET" consist of “Gateway
unit”,”analyzer server” and “ARCNET / Ethernet Converter”.
Each software (PCAS, ASET) for “Analyzer server” and “Analyzer Server Engineering
Terminal” should be used ARCNET edition “/ARC”.
The communication to the analyzer connected to Ethernet is also enabled.
• "Analyzer bus systems for ARCNET" should be used so that DCS communicates
with analyzer connected to ARCNET.
• Redundancy for ARCNET is enabled. Redundancy for Ethernet can be done by using
double "Analyzer bus systems for ARCNET".
• One "Analyzer bus systems for ARCNET" can communicate with up to 30 sets of
analyzers connected to ARCNET. In case of communicating with more than 31 sets,
plural number of "Analyzer bus systems for ARCNET" should be used.
F0701.ai
DCS
DI/O
RS-232C
LAN (Ethernet)
Analyzer bus system
for ARCNET
ARCNET
PC
[PCAS/ARC]
PC
[ASET/ARC]
STARDOM FCJ
[ASGW]
ASIU
GCIU
GC1000 MarkII
GC1000 GC1000
[ ]:Software
ARCNET/Ethernet
Converter
GC1000 MarkII
GCIU
Analyzer
pH analyzer,
Oxygen analyzer, etc.
Network monitoring,
Automatic data storage Gateway
Operation and display of
Gas Chromatograph
Figure 7.1 Typical System configuration
4th Edition : Nov. 22, 2011-00