2.2. Jumper Settings
2.2.1
AC Filter Jumpers
Simply setting the jumpers on the board can change the I/O card configuration.
Each digital input channel can be jumper-configured as a single-pole, AC filter with
a time constant of 1.2 ms. The table below lists each digital input channel and the
corresponding jumper.
Jumper
Channel
Jumper
Channel
JP1 DI0 JP9 DI8
JP2 DI1 JP10 DI9
JP3 DI2 JP11 DI10
JP4 DI3 JP12 DI11
JP5 DI4 JP13 DI12
JP6 DI5 JP14 DI13
JP7 DI6 JP15 DI14
JP8 DI7 JP16 DI15
Table 2-2: Jumper assignments.
The figure below shows how to select the digital input type:
Without Filter For DC Signal
(Default Settling)
With AC Filter
For AC Signal
1
2
3
1
2
3
Figure 2-2. Jumper Settings.
If AC input signals are used, the AC FILTER must be set by shorting pins 2-3
of the corresponding jumpers. If DC input signals are used, the AC FILTER is
optional. If the DC input signal response is less than 20
μ
s, set the filter to OFF. If
a slow response is required (about 5 to 10 ms) in order to reject either noise or
contact bouncing, short the AC FILTER (Pins 2-3).
PISO-P8R8U/P16R16U/PEX-P8R8i/P16R16i User Manual (Ver.1.6,Mar/2010, PMH-021-16) -
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