Figure 18: Caterpillar Service Tool DIO digital input configuration

Figure 18: Caterpillar® Service Tool DIO digital input configuration

The failure mode identifier (FMI) configures what type of failure this event will represent. The technician is free to configure any FMI for any SPN, but discretion must be used. Certain combinations may not be meaningful (i.e. the EMCP 3 may not be configurable to display or trigger a response for certain combinations of SPN and FMI). For example, a “Fuel Level” SPN with a “Condition Exists” FMI is not meaningful; the EMCP 3 can be configured to display or react to only fuel level low or high warnings or shutdowns.

Configuring Relay Outputs

The Relay Output #1 Configuration list of the service tool configuration tool is shown in Figure 19. All eight relay outputs have identical parameters and options.

The suspect parameter number (SPN) is a choice between a predetermined list of SPNs that are supported by the DIO module. If you wish to configure the DIO to trigger an output based on an event on the data link related to a specific SPN, the SPN must be selected here.