National Instruments NI EDIDS-2400 Series, User Manual, Page: 130 / 314

130 | ni.com | NI EDIDS-2400 Series User Manual
Tip Strip: Specifies Enables O2 sensor module.
Detail: If the O2 sensor module is in the correct slot and UEGOModuleEnable is TRUE, then the RT VI begins
initializing the wide-band sensors, bringing them up to temperature, and updating sensor results in the UEGO X
cluster.
Warning: If the module is present but no sensors are connected, then the application will time out (30 seconds)
with its attempt to bring the sensors up to temperature and discontinue heater control. UEGOModule Enable
must be set to FALSE and back to TRUE in order to make another attempt at sensor control. It is important that
disconnected wide-band sensors are NOT connected while UEGOModule Enable is TRUE. It is possible to
damage the sensor element of a cold sensor if the sensor connection is made while the UEGOModuleEnable is
TRUE and the heater duty cycle is approaching 100%. Sensors should already be connected when
UEGOModule
Enable is set to TRUE so that the temperature is brought up according to a profile specified by Bosch.
UEGOModule_Present
Tip Strip: UEGO Module Present
Detail: Indicates that the module is plugged in to the proper slot, externally powered and recognized by the DI Driver
System software. Software may not recognize the module if the software and hardware revisions do not match.
Fuse_Status
Tip Strip: Fuse status
Detail: A single fuse is located in the module circuit which feeds battery voltage to both sensor heaters.
FUSE OK: The heater circuit fuse is OK.
FUSE BLOWN: The heater circuit fuse is blown.
UEGO_Battery
Tip Strip: Module Battery Voltage as read by UEGO module
Units: V
Detail: Indicates battery voltage sensed internal to the module while enabled
UEGO
X
Cluster