How can you determine whether a PGN on the network is a standard/public PGN or a manufacturer proprietary PGN?

How can you determine whether a PGN on the network is a standard/public PGN or a manufacturer proprietary PGN?

• A. Look at color of device housing.
• B. Standard PGNs are defined by NMEA 2000 in the standard catalog; proprietary PGNs are reserved for manufacturers and are not publicly documented.
• C. If the PGN is 500-1000 range it's standard.
• D. It is standard if the talker device prints its name.

Answer: (B)

On an NMEA 2000 network, you determine whether a PGN is standard or manufacturer proprietary by checking the official catalog. Standard PGNs are defined by NMEA and published in the NMEA 2000 Standard Catalog, making them publicly documented and interoperable across devices. Proprietary PGNs are reserved for manufacturers and are not publicly documented, so they require vendor-specific documentation to interpret. The other cues, like the color of a device housing or a talker printing its name, don’t reliably indicate whether a PGN is standard or proprietary, and guessing from numeric ranges isn’t trustworthy. To identify the status, look up the PGN in the official NMEA 2000 catalog or documentation.

On an NMEA 2000 network, you determine whether a PGN is standard or manufacturer proprietary by checking the official catalog. Standard PGNs are defined by NMEA and published in the NMEA 2000 Standard Catalog, making them publicly documented and interoperable across devices. Proprietary PGNs are reserved for manufacturers and are not publicly documented, so they require vendor-specific documentation to interpret. The other cues, like the color of a device housing or a talker printing its name, don’t reliably indicate whether a PGN is standard or proprietary, and guessing from numeric ranges isn’t trustworthy. To identify the status, look up the PGN in the official NMEA 2000 catalog or documentation.