Festo CTEU-DN, Описание, функции и обслуживание

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1. Introduction
1-5
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
1.1.3 CTEU-DN function range on the DeviceNet (brief overview)
– Object-based fieldbus system
– Master-Slave system architecture
– Process synchronisation in accordance with the Producer/
Consumer method
– Connection-based communication procedure: point-to-
point connection (peer-to-peer messaging), where applic-
able as Multicast connection and/or Master/slave I/O
connection
– Predefined master/slave connection set for the simplified
transmission of I/O data between the master and the PLC
and the slave and the bus node
– Real-time operation: Exchange of I/O data in “real-time”
– Message types supported for the Master/slave I/O con-
nection:
– Polled communication (“I/O polling”)
– Change of state / Cyclic communication
– Supports the QuickConnect feature and the Automatic
Device Replacement (ADR) function: guarantees faster
reconnection between DeviceNet-Scanner and bus nodes,
e.g. after replacing the bus nodes
– Application-specific process data transmission based on
the Common Industrial Protocol (CIP):
– Time-critical I/O data via “I/O messages”
(I/O messaging or implicit messaging)
– Data required for configuration, diagnostics and
management via explicit messaging
– Module-specific parameterisation via manufacturer-spe-
cific objects