Communication extension card
EtherCAT communication card
-80-
Chapter 6 EtherCAT communication card
6.1 Overview
1. Thanks for choosing INVT EC-TX508 communication cards. This manual describes the
function specifications, installation, basic operation and settings, and information about
the EtherCAT 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 EC-TX508 communication card and the
related commands but does not provide details about the EtherCAT protocol. For more
information about the EtherCAT protocol, read the related specialized articles or books.
3. EC-TX508 communication card is defined as an EtherCAT slave station communication
card and is used on a VFD that supports EtherCAT communication.
4. The EtherCAT communication of this communication card supports two types of process
data for reading data from and writing data to VFDs. They are PDOs (process data
objects) and SDOs (service data objects) for reading data from and writing data to the
object dictionary defined by the manufacturer.
6.2 Features
1.
Supported functions
Supports the EtherCAT COE 402 protocol.
Supports automatic network address setting
2.
Supported services
Supports the PDO service
Supports the SDO service
Supports the object dictionary defined by the manufacturer
Allowing SDOs to read data from and write data to VFD function codes
3.
Supported EtherCAT synchronization cycle
Table 6-1 Supported synchronization cycle
Item
Supported specification
Synchronization cycle
250us
500us
1ms
2ms
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