Table 540. Listen Only Property
Data type Permissions Read while stopped? Read while running? Write while stopped? Write while running?
Write No No Yes No

This property controls Listen Only mode for passive monitoring/logging.

  • FALSE disables Listen Only mode. Received frames are acknowledged, and frames can be transmitted using CAN Output.
  • TRUE enables Listen Only mode. The CAN port can only receive frames. The port does not transmit on the network. No acknowledgment is transmitted when a frame is received. When listen-only is enabled, the Comm State property begins in the Error Passive state.