MAESTRO S-VDR/VDR comprises of the following units depending on operating mode:
- SELMA MAESTRO S-VDR/VDR Main Control Panel Unit
- SELMA MAESTRO S-VDR/VDR Final Recording Medium Unit
- SELMA MAESTRO S-VDR/VDR UPS Unit
- 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.
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