Function description
Operating Manual PSSnet GW1 MOD-EtherCAT
1002692-EN-02
16
Function description
Operation
The Gateway
} operates as a protocol converter between Modbus/TCP and EtherCAT,
} operates on the Modbus/TCP side as connection Server and on the EtherCAT-side as
Slave,
} Uses an LED to indicate whether there is data traffic via the connection
} Uses an LED to indicate the interface used for this data traffic
} If the connection to EtherCAT or to Modbus/TCP is no longer available, the payload is
retained with the current values
} is exclusively designed for exchanging non-safety-related data
The Gateway is interposed in the data flow between the connected devices.
Protocol conversion, Modbus/TCP to EtherCAT
} Signal path from EtherCAT Master to Modbus/TCP interface
EtherCAT Master
-> EtherCAT input X1 on the Gateway -> Protocol conversion
-> Data input/output Modbus/TCP interface
-> Modbus/TCP
} Signal path from Modbus/TCP-enabled product to EtherCAT Master:
Modbus/TCP
-> Data input/output Modbus/TCP interface -> Protocol conversion
-> EtherCAT output X2 on the Gateway -> EtherCAT-Master
Block diagram
Modbus/TCP
2x EtherCAT
24 V
0 V
Mapping
Power
Block diagram
4
4.1
4.1.1
