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PLC Unit

MAESTRO S-VDR/VDR comprises of the following units depending on operating mode:

  1. SELMA MAESTRO S-VDR/VDR Main Control Panel Unit
  2. SELMA MAESTRO S-VDR/VDR Final Recording Medium Unit
  3. SELMA MAESTRO S-VDR/VDR UPS Unit
  4. SELMA MAESTRO VDR (only) PLC Unit

4. SELMA MAESTRO S-VDR/VDR – PLC Unit

Signals other than IEC 61162, Radar and audio are interfaced through the PLC System. The SELMA MAESTRO S-VDR/VDR PLC Unit is a programmable logic controller for converting and recording analogue and digital signals into NMEA IEC61162 format.

SELMA MAESTRO S-VDR/VDR - PLC Unit

PLCs can be used to interface a variety of analogue and digital signals to the MAESTRO S-VDR/VDR where they are converted and recorded as IEC 61162 NMEA signals.

Technical Specifications

Digital signals:

  • NC/NO contacts
  • data buses

Analogue signals:

  • 0…10V
  • -10…+10V
  • 1…5V
  • 0…20mA
  • 4…20mA