Hardware Features
14
• Input signals of the type shown in Fig. 2-4.
The signals are connected to the relevant pins of the Sub-D front panel
connector. In this case, the ”Input” option must be set in the option
box ”CAC Port Mode” in the ”ES1651-CTRL” RTIO element of the
ES1651-RTIO integration. This results in the switch at the output of the
2.2 V comparator (Fig. 2-2 on page 12) and the switch at the output of
the 2.2 V comparator (Fig. 2-3 on page 13) being closed.
The direction of the CAC bus signals (input or output) can only be selected for
the bus as a whole.
Fig. 2-4
CAC Bus Output Signals
Note
The pin assignment of the 9-pin Sub-D connector is contained in the section
"Synchronization Bus and CAC Bus Connection ”SYNC & CAC” (CO2)"
on page 35.
Crankshaft
Angle
0°
720°
1440°
5 V
0 V
5 V
0 V
5 V
0 V
Crankshaft Angle Clock Bus Synchronization Signal
Crankshaft Angle Clock Bus Angle Clock Signal
Crankshaft Angle Clock Bus Direction of Rotation Indicator Signal
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