Hardware reference guide

Intelligent/Special Purpose

356

35013379 02 October 2007

Read Input

Counter

Command

The following table shows the read input registers.

When this command is issued, the content of the input pulse counter is retrieved.

The 3X register content would appear as shown in the following table.

3x Register

Content

Reset of Latched

Outputs

If register 400103 in the Module Configuration Table has been set to 4200, Output

1A would have been latched on at setpoint and Output 1B latched on at maximum

count. Wiring Diagrams 2 and 4 show how the encoder Z outputs could be used to

reset the latched outputs. The minimum pulse width to reset outputs is 1 μs.

40301 0300 READ INPUT COUNTER command

40302 0000

Not used by this command

40303 0000

40304 0000

40305 0000

40306 0000

300001 0300 Command echo

300002 XXXX Current input count

300003 0000 Zeros as the count will not exceed 100. For counts above 65,536,

this register is a multiplier. As an example: 30002 has a value of

324 and 30003 a value of 3.The total count is (65,536 x 3) + 324 =

196,932

300004 0000 Counter 2 is disabled

300005 0000 Counter 2 is disabled

300006 0X00 X is the field power indicator

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