EtherNet/IP (industrial protocol) is a global standard for industrial communications using ethernet. Using the low-cost infrastructure offered by ethernet, EtherNet/IP ensures customers have a cost-effective, high-performance network.
Like DeviceNet, EtherNet/IP is an open vendor network, which is administered by the ODVA (Open Vendors Device Association). As any vendor is welcome to create devices for it, customers have a choice of devices to select from, and can select the ‘best of’ technology.
Omron Electronics has released EtherNet/IP modules for both its CJ1 and CS1 range of PLCs. The latest firmware upgrade for the NS series HMIs enables them to communicate via EtherNet/IP also. Large and fast data links can now be configured between PLCs that need to exchange data with each other.
EtherNet/IP uses CIP (common industrial protocol), which operates in the application layer of the OSI model. CIP greatly simplifies routing and therefore allows host computers to communicate with basic factory floor equipment, even through multiple layers of networks. Relative paths can be specified during set-up rather than absolute node addresses.
The EIP cards support a number of other protocols including FTP, SNTP, SNMP and FINS for backward compatibility.
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