Yokogawa YFGW710 - Manual (Page 19)

<A1. Introduction>
A1-2
IM 01W01F01-01EN
Layer 3 switch
Field Wireless
Management Tool
NTP
server
Ethernet
Ethernet
Field Wireless
OPC server
Field Wireless Network
YTA
FieldMate
Ir adapter
FA0101.ai
Field Wireless
Integrated
Gateway
Ethernet
EJX
Ir connection
Host system
(OPC interface)
Host system
(Modbus/TCP)
(6)
(4) (5)
(3)
(1)
(2)
(7)
Device
management
tool
Figure A1-1 Image of Field Wireless Network
Notes:
(1) Field Wireless Integrated Gateway (YFGW710): Core equipment in the wireless network
(2) Field wireless devices (wireless EJX and wireless YTA): Field instruments that measure
process values and send them wirelessly
(3) FieldMate: Software that performs “provisioning” (setting essential parameters) through
infrared data communication in advance to allow wireless field devices to join the wireless
network
(4) Field Wireless Management Tool: Field Wireless Configurator configures the wireless net-
work and Field Wireless Management Tool manages it.
(5) NTP server: The Gateway refers to this server to synchronize its time with a reference time
source, which is a basic operation of a wireless network. Wireless communication between
field wireless devices and YFGW710 can be established without an NTP server.
(6) Host system (Modbus/TCP): A system that uses process values measured by field wireless
devices through the wireless network for monitoring, etc.
(7) Device management tool: An application that sets and manages the parameters of field
wireless devices via a wireless network system