Beckhoff EPP3504-0023 Short Manual page 214

Mounting and wiring
The following potential scheme can be specified:
Properties:
• electrical isolation at a specified level
◦ between field and E-bus: yes
◦ between field and SGND: yes
◦ between E-bus and SGND: yes
◦ between the channels: no
• Power contacts in use: no
• Connection type: Push-in spring connection
214 Version: 1.2 EPP3504-0023