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5.2 Device Group Registers

5.2.2 Group Fault Delay Register

This register is used to specify the delay time which must pass before a differential input is considered faulty.

Group Fault Delay Register
Group Offset
Read/Write
76543210
$31D7D6D5D4D3D2D1D0

Each input is continuously monitored to check whether a proper differential signal is being applied. When a non-differential signal is detected longer than the delay time, this input is considered faulty. The delay register is used to specify this delay time and can be set to a value between 0 and 255. The delay will be 100ns times the value of this register. It is recommended to use delay times longer than 500ns to prevent normal transitions of the input signals from triggering the fault detection mechanism.


BI-0433 - 12 Channel Incremental Encoder Interface with Isolated Inputs and Cable Fault Detection - 23 MAY 1997 Copyright 1997 Brand Innovators B.V. [Next] [Previous] [Up] [Top] [Contents] [Back]