FCMND program instruction DeviceNet Command Codes 761 Used for reading CanBus status. The CanBus is the bus that DeviceNet runs on. When the instruction FCMND (lun,761) "", $input is executed, the string variable $input returns the status shown in the following table. DeviceNet Status Format eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 225 Function Notes INTB($input, 1) CanBus status value (see below) INTB($input, 3) Number of bytes transmitted INTB($input, 5) Number of acknowledges received INTB($input, 7) Number of bytes received INTB($input, 9) Number of errors INTB($input, 11) Number of bytes lost INTB($input, 13) Number of overruns