The CU320-2 PN Control Unit features the following connections and interfaces as standard:

• 4 DRIVE-CLiQ sockets for communication with other DRIVE-CLiQ devices, e.g. chassis units or Terminal Modules
• 2 PROFINET interface with PROFIdrive profile
• 12 parameterizable digital inputs (floating)
• 8 parameterizable bidirectional digital inputs/outputs (non-floating)
• 1 serial RS232 interface
• 1 interface for the BOP20 Basic Operator Panel
• 1 slot for the CompactFlash Card on which firmware and parameters are stored
• 1 slot to install an option module for the interface extension
• 1 Ethernet interface for commissioning and diagnostics
• 3 test sockets and one reference ground for commissioning support
• 1 connection for the electronics power supply via the 24 V DC supply connector
• 1 PE/protective conductor connection
• 1 ground connection

A shield support for the signal cable shield on the option module is located on the CU320-2 PN Control Unit.

The available option slot is used to expand the interfaces, for example, to include additional terminals.

The status of the CU320-2 PN Control Unit is indicated using multi-color LEDs.