Commissioning; General Points About Sercos - Festo CPX-FB39 Description

3

Commissioning

3 Commissioning
Please Note
Only commission a correctly installed CPX terminal (è 2 Installation).
Please Note
A firmware update can be performed by the Festo Field Device Tool (FFT).
The current version is available on the Festo Support Portal on the Internet
(è www.festo.com/sp).
– General information on commissioning the CPX terminal as well as a detailed
description of individual parameters is found in the CPX system description
(è P.BE-CPX-SYS-...).
– Information on commissioning the analogue pneumatic interfaces and I/O modules
can be found in the description (è P.BE-CPX-EA-...).
– Instructions on commissioning the pneumatic components can be found in the corres­
ponding description of pneumatics.
3.1 General points about Sercos III
Please Note
The bus node CPX-FB39 is a remote I/O system that communicates with the Sercos
controller via the Sercos IO profile (Function Specific Profile IO).
Sercos III is an Ethernet-based communication protocol for automation applications.
Communication on a Sercos III network is based on the time-stop process with cyclical data transmis­
sion in the form of telegrams based on the master-slave principle. This combines real-time and non-
real-time communication channels in a communication system.
Real Time Channel (RTC)
During transmission in real-time, a distinction is made between two types of telegram.
– Master data telegram (MDT): For communication of nominal/setpoint data from master to slaves.
– Acknowledge telegram (AT): For communication of status data from slaves to master and for trans­
verse communication between the individual controllers or slaves.
Non-real-time channel (Universal Communication Channel - UCC)
For the exchange of standard Ethernet telegrams between any participants on the network.
You will find further information about Sercos III on the Internet:
è www.sercos.org
24 Festo – P.BE-CPX-FB39-EN – 1504NH – English