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| New control network, Vnet/IP |
| Vnet/IP, Yokogawa's control network for the production control systems of the future, was introduced in 2004. |
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Achilles Level 1+ Robustness Against Cyber Attack New
Yokogawa has received Achilles Level 1+ certification for Vnet/IP controllers.
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Our users require the ability to incorporate commercially available communication devices in their network systems while maintaining the high reliability, real-time control capability, and stable communications that are the hallmarks of conventional control networks. |
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The aim is not just to benefit from general-purpose technologies, but to create a common platform that can connect with a variety of equipment. |
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Users are looking to reduce network configuration costs by utilizing the latest commercially available network equipment. |
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A wider selection of communications media must be available and network configuration must be more flexible. |
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| A new control network protocol that incorporates general communication functions and enables highly reliable, real-time, and stable communications is now available. |
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Name: Vnet/IP |
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This new control network protocol is called Vnet/IP because it is compatible with Vnet and used the IP Internet protocol for general-purpose communications. |
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Vnet/IP is a 1-Gbps control network that is functionally compatible with V net and is based on the Ethernet protocol. |
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The IEC is considering the certification of Vnet/IP as an industrial communications standard. |
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Vnet/IP, Yokogawa's control network for the production control systems of the future, was introduced in 2004.
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| Vnet/IP has all the advantages of V net, which remains an excellent control network, while offering substantially higher throughput. |
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Compatibility |
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Supports V net-compatible protocols and incorporates all V net communications functions |
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Reliability (Redundant bus configuration) |
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Features a robust redundant configuration that switches buses quickly in event of failure - equivalent to V net |
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Performance |
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Response times are equivalent to V net’s, but throughput is up to ten times greater, depending on the performance of the communications station. |
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Vnet/IP incorporates all current V net services.
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-Same fast response times of V net
-Throughput approximately ten times greater(*) than V net
-Monitoring of station status (updating live list) at 1-second intervals, same as with V net
-Time synchronization accuracy of 1 millisecond within the same domain
(*)* The actual throughput depends on the performance of the communication station.
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Control Network Vnet/IP |
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