LJM Device Search Configs

When LJM searches for devices in the following situations:

• During an Open or ListAll call
• During reconnect

The below parameters configure device search behavior.

Retries

• LJM_LISTALL_NUM_ATTEMPTS_ETHERNET
  • Determines the number of times LJM tries to discover Ethernet connections per open/ListAll call.
  • Default: 2
• LJM_LISTALL_NUM_ATTEMPTS_WIFI
  • Determines the number of times LJM tries to discover WiFi connections per open/ListAll call.
  • Default: 2

Concurrent searching

• LJM_LISTALL_THREADED_ETHERNET
  • Determines whether LJM searches for Ethernet connections in parallel with the other connection type searches or not
  • Default: true
• LJM_LISTALL_THREADED_USB
  • Determines whether LJM searches for USB connections in parallel with the other connection type searches or not
  • Default: true
• LJM_LISTALL_THREADED_WIFI
  • Determines whether LJM searches for WiFi connections in parallel with the other connection type searches or not
  • Default: true

Timeout

Determines how long in milliseconds LJM waits for device responses:

• LJM_LISTALL_TIMEOUT_MS_ETHERNET
  • Default: 900
• LJM_LISTALL_TIMEOUT_MS_WIFI
  • Default: 1000

Protocol

Determines whether LJM initializes the connection via UDP (true) or TCP (false):

• LJM_LISTALL_UDP_ETHERNET
  • Default: true
• LJM_LISTALL_UDP_WIFI
  • Default: true

Relevant Functions

To read the above configs, use LJM_ReadLibraryConfigS.

To write the above configs, use LJM_WriteLibraryConfigS or LJM_LoadConfigurationFile.

Remarks

Other related device connection configurations:

• Auto IPs - Automatically stored connection information for helping to open connections.
• Specific IPs - Manual configurations for connecting to statically-addressed LabJack devices.
• Deep Search - Manual configurations for connecting to DHCP-addressed LabJack devices.