RTU-ECAT Operation Manual
2-2
1. Thank you for choosing Delta RTU-ECAT. To ensure correct installation and operation of RTU-ECAT,
please read this manual carefully before use.
2. This manual only provides introductory information on RTU-ECAT. For more detailed information on
EtherCAT protocol, please refer to relevant references or literatures.
3. RTU-ECAT is defined as an EtherCAT slave and DVP-S series DI/DO modules and special modules can
be connected on its right side.
4. Refer to DVP-PLC Application Manual: Special Modules for more details on how to use DVP-S series
special modules.
2.1 Characteristics
Compliant with the EtherCAT protocol, RTU-ECAT supports PDO, SDO and other services in the COE
protocol.
Supports Distributed Clock SYNC and SyncManagers SYNC.
On its right side, RTU-ECAT connects DVP-S series right-side modules with maximum 128 digital input
points and 128 digital output points as well as maximum 8 special modules such as analog modules,
temperature modules, pulse modules and etc.
Maximum 14 DVP-S series digital modules and special modules in total can be connected to the right
side of RTU-ECAT.
Users can select that the output values of right-side special modules and digital output point values of
digital modules keep the same as they are before disconnection or change to zero when RTU-EtherCAT
is disconnected from the master.
2.2 Specifications
Electrical specification
Item Specification
Power voltage
24 VDC (-15% ~ 20%)
Consumption power
1.8 W
Isolation voltage 500 V
EtherCAT specification
Item Specification
Communication protocol EtherCAT Protocol
Supported service CoE（PDO, SDO）
Physical layer 100BASE-TX
Baud rate 100Mbps
Transmission medium Cat 5 or above shielded cable
Transmission distance 100m
Topology Structure Linear topology
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