Yokogawa YFGW510 - Manual (Page 16)

<A2. System Configuration>
A2-2
IM 01W02E01-01EN
FA0203.ai
Field network
Information network (Ethernet)
NTP server
Field wireless management PC
Field Wireless Management Console
PRM HIS/ENG HIS
Field Wireless
Management
Station
(YFGW410)
Layer 2 switch Layer 2 switch
Control network (Ethernet)
Cable for redundancy
Layer 2 switch
(IEEE 1588)
Layer 2 switch
(IEEE 1588)
Layer 2 switch
(IEEE 1588)
Layer 2 switch
(IEEE 1588)
Layer 2 switch
(IEEE 1588)
Layer 2 switch
(IEEE 1588)
Field wireless
subnet B
Field wireless
subnet A
Field wireless
backbone network
Field wireless
network
Field Wireless
Access Point
(YFGW510)
Field wireless device
Field wireless
network
(ISA100.11a)
Field Wireless
Access Point
(YFGW510) Field Wireless
Access Point
(YFGW510)
Field Wireless
Access Point
(YFGW510)
Field wireless
network
(ISA100.11a)
Field wireless device
Layer 3 switch
FCS
ALE111 x 2
Figure A2-3 YFGW410/YFGW510-redundant configuration
Figure A2-3 shows the YFGW410/YFGW510-redundant system configuration.
The Layer 2 switch between YFGW410 and YFGW510 must support the rapid spanning tree
protocol (RSTP) to prevent network loops, and the IEEE1588v2 (precision time protocol).
For recommended Layer 2 switches, see the User’s Manual of YFGW410 (IM 01W02D01-
01EN).
As shown above, field wireless networks can be built with various system configurations.