PIB-C
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Description

This board has 8 counter inputs. Each of the inputs is optically isolated. There are jumpers to connect the input ground to the system ground and for a pull-up resistor.

The input signal is filtered at 50Hz. Each input can count up to 255 and will then go to zero again. It must be made sure in the measuring program that the input is read before it reaches the maximum, otherwise pulses will be lost. The counter can either remain unchanged or be reset to zero when read.

The inputs are suited for switch contacts and open collector signals. Each input has a LED that shows the status of the input.

Specifications

width

4 TE

power supply

+/-15Vdc,  < 40mA

input type

optically isolated 5...24VDC or open-collector

input impedance

2k7, optionally with a pull-up resistor of 2k7 to +15VDC

common-mode voltage

max. 500V (common ground jumper not in place)

jumpers

input common ground, pull-up resistor, board address

maximum frequency

50Hz

minimal input pulse width

10ms

temperature operating

-10...+50°C

temperature storage

-20...+70°C

counter range

8 bits (256 counts)

Connections

pin

signal

address jumpers

1

- channel 8

2

+ channel 8

3

- channel 7

4

+ channel 7

5

- channel 6

6

+ channel 6

7

- channel 5

8

+ channel 5

option jumpers

9

- channel 4

10

+ channel 4

11

- channel 3

12

+ channel 3

13

- channel 2

14

+ channel 2

15

- channel 1

16

+ channel 1

 

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Last modified on: 23-11-2006