Proline Promag W 500
Endress+Hauser 33
Connecting in a ring topology
Device versions with EtherNet/IP and PROFINET communication protocols can be integrated into a
ring topology. The device is integrated via the terminal connection for signal transmission (output 1)
and the connection to the service interface (CDI-RJ45).
Integrating the transmitter into a ring topology:
• EtherNet/IP → 99
• PROFINET → 100
A0026781
1 Terminal connection for supply voltage
2 Terminal connection for signal transmission: PROFINET or EtherNet/IP (RJ45 connector)
3 Terminal connection to service interface (CDI-RJ45)
4 Protective ground (PE)
If the device has additional inputs/outputs, these are routed in parallel via the cable entry for
connection to the service interface (CDI-RJ45).
Connection examples
Current output 4 to 20 mA HART
A0029055
2 Connection example for 4 to 20 mA HART current output (active)
1 Automation system with current input (e.g. PLC)
2 Cable shield: the cable shield must be grounded at both ends to comply with EMC requirements; observe cable
specifications → 43
3 Connection for HART operating devices → 95
4 Resistor for HART communication (≥ 250 Ω): observe maximum load → 15
5 Analog display unit: observe maximum load → 15
6 Transmitter