Yokogawa YFGW710 - Manual (Page 109)

B1-45
IM 01W01F01-01EN
n Example of a System Configuration Emphasizing Security
Level 4
Level 3
Level 2
Level 1
Level 0
DMZ
(6)
(5)
(4)
(2) (1)
(3)
EJX YTA
OUT
IN
Firewall
OPC
Client PRM
Client
Process Information Network
(Ethernet or Vnet/IP BUS2) Process Information Network
for Field Wireless (Ethernet)
Control Network
for Field Wireless (Ethernet)
CENTUM VP
ISA100 Gateway
(YFGW710)
Wireless Network
(ISA100.11a)
UTP or Optical cable
HIS/ENG
PRM
Field Comm Server
for CENTUM
GSGW
OUT IN
Firewall
Field Comm Server
for Wireless
PRM
OPC
Server
Firewall
OUT
IN
OUT
IN
OUT
IN
OUT
IN
FWC FWMT
Firewall Firewall
Firewall
FCS
ACL
L3 Switch
Local Field Network
(Ethernet)
Control Network
(Vnet or Vnet/IP)
10BASE-T
ALE111
Wide-area Universal
Field Network
IP-VPN
EJX YTA
ISA100 Gateway
(YFGW710)
Wireless Network
(ISA100.11a)
FB0113.ai
Figure B1-13 Example of a System Emphasizing Security
Notes: FWC stands for Field Wireless Configurator and FWMT stands for Field Wireless Management Tool.