132 The active state configuration determines which state (high or low) triggers the event, and depends on the sensor/switch wiring configuration. The event notification delay time sets the amount of time the input must remain active until the DIO module triggers an event on the data link. SUSPECT PARAMETER NUMBER (SPN) The suspect parameter number (SPN) is a choice between a predetermined list of SPNs that are supported by the DIO module. All of the discrete inputs support the same list of SPNs, except Custom Event. Discrete Input #1, when set to Custom Event, will trigger an event for Custom Event #1. Discrete Input #2, when set to Custom Event, will trigger an event for Custom Event #2; likewise for all twelve discrete inputs. FAILURE MODE IDENTIFIER (FMI) 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 GSC 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 70. 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.
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FIGURE 70: CATERPILLAR SERVICE TOOL DIO RELAY OUTPUT CONFIGURATION
The trigger condition is a list of conditions that will trigger this output. For the conditions labeled specific event, the relay will be activated upon receiving a category of events (either a single FMI or a set of FMIs) for the SPN selected in the suspect parameter number parameter. For the conditions labeled general event, the relay will be activated upon receiving a category of events (either a single FMI or a set of FMIs) for any SPN. In this case, the DIO module will ignore the entry in the suspect parameter number parameter. If the disabled condition is chosen, the relay output will not activate on any condition.
17 OPTIONAL Modules
