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Figure 7-2 provides a detailed view of the ACE3600 High Voltage DI Module front panel.
Figure 7-2 ACE3600 High Voltage DI Module – Front Panel
DI Module Configuration
The High Voltage DI module can handle AC and DC input signals. The user can select DC or
AC (default) operation per module. When AC configuration is selected, the Input Filters (see
below) are disabled.
Note: The default configuration for the DI 120/230V module is different than that of a regular
DI module.
Input Filters (DC Configuration)
When the High Voltage DI module is in DC mode, each input has a HW input filter to make
sure that the input reading is stable. The range of the HW DI filter is 0 to 50.8 milliseconds (in
0.2 msec steps).
Note: In this module, the minimum effective filter value is 7.0 msec.
Keep Last Value (KLV) and Predefined Value (PDV)
Each input can be configured to KLV or to a PDV (0, 1). This value is shown to the user
application program in the event of High Voltage DI module failure. The PDV can also be
used during normal operation to force a value that masks the actual input value. In this case
the user program will get the PDV instead of the actual input value.
7-2
Digital Input 120/230V Module
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