Rxqwhu )xqfwlrq %orfn – IKA labworldsoft User Manual
Page 52

- 52 -
&RXQWHU )XQFWLRQ %ORFN
The
&RXQWHU
function block can perform counting functions for input signals in the
TTL-Bereich
such as
SRVLWLYHQHJDWLYH VORSHV
or
2Q 2II WLPHV
.
The counter is automatically set to 0 at the start of a new measurement.
7KH IROORZLQJ FRXQWLQJ IXQFWLRQV DUH DYDLODEOH
&RXQW IXQFWLRQ
2XWSXW VLJQDO
Positive slopes:
Number of changes of the input signal from TTL-Low to TTL-High.
Negative slopes:
Number of changes of the input signal from TTL-High to TTL-Low.
Time High Level:
Seconds since the start of the measurement with a data value greater than
TTL-High (2.0) of the input signal.
Time Low Level:
Seconds since the start of the measurement with a data value less than TTL-
High (0.8) of the input signal.
Carry out the following instructions:
1. Call up the parameters window by double clicking on the icon.
2. If necessary, enter the
0RGXOH 1DPH
of the control block into the "Designation" text field.
3. Select
3RVLWLYH 1HJDWLYH 6ORSHV
function or
2Q 2II 7LPH
.
4. Confirm entries with
2.
.
0XOWLFKDQQHO 2SHUDWLRQ
The ports should identifiable for multichannel operation. The ports may be identified for this
purpose.
Carry out the following instructions:
1. Set the
&KDQQHO &RXQW
by clicking the upper arrow keys.
2. Select the channel by clicking the lower arrow keys.
3. Enter the
&KDQQHO 'HVLJQDWLRQ
into the text field, i.e. make an entry for each channel
selected.
4. Select
3RVLWLYH 1HJDWLYH 6ORSHV
or
2Q 2II 7LPH
for the channel selected.