YOKOGAWA Vnet/IP, Technical Information

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1. Overview of Vnet/IP
1-18
TI 30A10A05-01E
l
Connection between Vnet/IP domains through V net
When using AVR10D style S3 V net routers, you can set either Vnet/IP or V net as the upper
domain. However, you must set Vnet/IP as the upper domain for AVR10D style S2 V net routers.
You can connect Vnet/IP and V net in an alternating series by using the AVR10D style S3 V net
router. In this case, you can connect only up to two V net routers where V net is set as the upper
domain. This limitation does not include the number of V net routers where Vnet/IP is set as the
upper domain.
010406E.ai
V net router
(AVR10D S3)
HIS/ENG FCS
L2SW
Upper
V net Domain
Lower
V net router
(AVR10D S3)
HIS FCS HIS FCS
V net router
(AVR10D S3)
V net router
(AVR10D S3)
Upper
Lower Upper
Lower Upper
Lower
V net Domain
+1 +1
Vnet/IP Domain Vnet/IP Domain Vnet/IP Domain
V net router
(AVR10D S3)
V net
Domain
HIS FCS HIS FCS FCS
Upper
Lower
L2SW
L2SW
Figure Example of connection between V net domain and Vnet/IP domain
IMPORTANT
You must check the communication bandwidth if you are connecting Vnet/IP domains to Vnet
domains. Estimate the communication bandwidth used by V net, including the volume of
communication between Vnet/IP domains that passes through V net.
TIP
Upgrade all Vnet/IP stations to Vnet/IP firmware revision 16 or later to enable Vnet/IP domains to communicate
with each other through V net domains.
Dec. 26, 2016-00