GASKET 6I0836 - Caterpillar

Digital and Relay Output Programming
EMCP 4.1 and EMCP 4.2 support relay outputs capable of 2A resistive at 30 VDC. The EMCP 4.1 has six "Form A" relay outputs (normally open). EMCP 4.2 has six "Form A" relay outputs and two "Form C" relay outputs (both normally open and normally closed).EMCP 4.2 also support two programmable discrete outputs capable of sinking 300 mA per input. These outputs will sink a current to draw down a voltage of up to 30 VDC down to battery (-).Outputs can be configured by using the EMCP 4 display. For some of the set points, level 2 or level 3 access is required. This section will assume that the correct level 2 or level 3 access has already been obtained. Alternately, Cat ET can be used to configure these outputs.The programming of the digital and relay outputs starts by selecting a "Usage Type". The rest of the programming is dependent upon what usage type is selected. Illustration 1 summarizes the paths possible for programming digital and relay outputs.Note: If the engine operating state is configured as hard wired, then "Relay Output #1" must be programmed to "Starter Motor Relay". And "Relay Output #2" must be programmed to "Fuel Control Relay".
Illustration 1 g02266973Programming Outputs using the Display
For some of the set points, level 2 or level 3 access is required. This section will assume that level 2 or level 3 access has already been obtained.Viewing the Current Output Status
To view the status of a relay output, go through the following menu options:Note: The Steps are similar for digital outputs.
Illustration 2 g02263437
At the main menu, press the down key to select "VIEW". Press the "OK" key.A screen like Illustration 3 appears.
Illustration 3 g02263438
Press the down key to select "I/O Status". Press the "OK" key.A screen like Illustration 4 appears.
Illustration 4 g02266975
Select "Relay Outputs". Press the "OK" key.A screen like Illustration 5 appears.
Illustration 5 g02269353
The status of all relay or digital outputs is shown. A dash under an output number indicates an output is programmed, but inactive. A large "X" under an output number indicates an output is disabled. A number under an output number indicates an output that is programmed and active.
Press the left key or the right key to select the relay or digital output that you wish to view. Press the "OK" key.A screen like Illustration 6 appears.
Illustration 6 g02269853
The programmed usage type of the selected relay or digital output is shown. Press the down key to view the remaining parameters for this input.Configuring Outputs for Status Parameters
Command or status parameters are used to control specific functions within the control system or to make certain conditions within the system be known.Note: The fuel control relay does not pick up when the engine operating state is set to CAN. The "Engine Start Initiated" can be used in lieu of the fuel control relay for most purposes.To configure a digital output or relay output as a status parameter, follow the Steps below:
Illustration 7 g02263553
At the main menu, press the down key to select