Yokogawa YFGW710 - Manual (Page 104)

<B1. Engineering>
B1-40
IM 01W01F01-01EN
B1.3.2.2 Time Synchronization (Connection with an NTP Server)
YFGW710 can be connected with an NTP server to synchronize the time of the field wireless
device on the field wireless network.
When an NTP server is not connected, the time of YFGW710 applies to the time on the field wire-
less network. Even when an NTP server is not connected, process data communication between
the field wireless device and YFGW710 is performed normally.
When time synchronization is required for ISA100.11a wireless communication including a host
system in total, establish an independent NTP server. Consult with the responsible department
of Yokogawa in that case.
B1.3.3 System Expansion
This section describes the following items.
▪ Connecting with an OPC Server
▪ Constructing Multiple Field Wireless Networks
▪ Security
B1.3.3.1 Connecting with an OPC Server
An OPC server can be connected with YFGW710 to allow an OPC client to access the param-
eters of the field wireless device. For details, refer to Field Wireless OPC Server Reference (IM
33M20S32-40E).
As described in Field Wireless OPC Server Reference, the following information on the
YFGW710 that is accessed by the OPC server must be set in the fwopcgw.csv file.
▪ YFGW710 host name
▪ IP address
▪ Network ID
l YFGW710 Host Name
A YFGW710 host name is a name used between the OPC server and OPC client, and has noth-
ing to do with Device Tag in Gateway, Device Tag in System Manager/Security Manager, and
Device Tag in Backbone Router displayed in Field Wireless Configurator.
After changing the Device Tag in Gateway, Device Tag in System Manager/Security Manager,
and Device Tag in Backbone Router displayed in Field Wireless Configurator, it is not necessary
to change the fwopcgw.csv file.
l Changing IP Address
When changing the IP address using Field Wireless Configurator, change the IP address de-
scribed in fwopcgw.csv. After the change, restart the OPC server.
l Network ID
When changing the network ID using Field Wireless Configurator, also change the network ID
described in fwopcgw.csv. After the change, restart the OPC server.
Note that when the network ID is changed, the provisioning task of all the field wireless devices
must be performed again.