Communication extension card
EtherNet/IP communication card
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Chapter 5 EtherNet/IP communication card
5.1 Overview
1. Thanks for choosing INVT EtherNet/IP communication cards. This manual describes the
function specifications, installation, basic operation and settings, and information about
the network protocol. To ensure that you install and operate the product properly, read
this manual and the communication protocol section in the VFD operation manual
carefully before you use the product.
2. This manual only describes how to operate the EtherNet/IP communication card and the
related commands but does not provide details about the EtherNet/IP protocol. For more
information about the EtherNet/IP protocol, read the related specialized articles or books.
3. This communication card is defined as an EtherNet/IP slave station communication card
and is used on a VFD that supports EtherNet/IP communication.
4. The communication card supports the star, linear, and ring topologies.
5. The communication card supports 32 inputs/outputs to read and write process data, read
state data, and read and write function parameters of a VFD.
5.2 Features
1. Supported functions
Supports the EtherNet/IP protocol, and supports EtherNet/IP devices.
Provides two EtherNet/IP ports and supports the 10/100M full-duplex/half-duplex
operation.
Supports the star, linear, and ring topologies (but does not support ring-network
monitoring).
2. Supported communication types
EtherNet/IP adapts the application layer protocol CIP, which is also used by DeviceNet and
ControlNet. Therefore, they use the same object library and consistent industrial
specifications.
CIP uses non-connected UDP/IP and connection-based TCP/IP for information control and
transmission over the Ethernet, allowing the sending of explicit and implicit packets. Implicit
packets are time-critical control messages and transmitted using UDP/IP. Explicit packets are
point-to-point messages that are not time critical and transmitted using TCP/IP. Explicit
packets are used for configuration, download, and fault diagnosis, while implicit packets are
used for real-time I/O data transmission.
3. Communication ports
Standard RJ45 ports are used in EtherNet/IP communication. The communication card
provides two RJ45 ports with no transmission direction defined, and therefore you can insert a
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