Pilz PSSnet GW1 MOD­-CAN Operating Manual page 18

Function description
4 Function description
4.1 Operation
The Gateway
}
operates as a protocol converter between Modbus/TCP and CANopen,
} operates on the Modbus/TCP side as connection Server and on the CANopen­side 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 CANopen or to Modbus/TCP is no longer available, the payload is
retained with the current values
}
is exclusively designed for exchanging non­safety­related data
The Gateway is interposed in the data flow between the connected devices.
Fig.: Protocol conversion, Modbus/TCP to CANopen
}
Signal path from CANopen­enabled product to Modbus/TCP­enabled product:
CANopen­enabled product ­> CANopen interface on the Gateway ­> Protocol con­
version ­> Data input/output Modbus/TCP interface ­> Modbus/TCP­enabled
product
}
Signal path from Modbus/TCP­enabled product to CANopen­enabled product:
Modbus/TCP­enabled product ­> Data input/output Modbus/TCP interface ­> Pro­
tocol conversion ­> CANopen interface on the Gateway ­> CANopen­enabled
product
Operating Manual PSSnet GW1 MOD­CAN
1002693­EN­03
18