User manual

COUNTER AC7E
2
Impo Electronic A/S, Svovlhatten 3, DK-5220 Odense SØ, Denmark · Tel. [phone] · Fax [phone]
CONTENTS
Page
Technical data............................................................................................. 3 - 4
Layoutdrawing............................................................................................. 5
Inputs............................................................................................................ 6
Instructions for use...................................................................................... 7
Passage times + time interval............................................................... 7
Start A - stop B........................................................................................ 7
Frequency A............................................................................................ 8
Unit counting A....................................................................................... 8
Push-button, LED, etc............................................................................. 8
Test functions.......................................................................................... 9
Interface user manual................................................................................. 10 - 14
COUNTER AC7E
13
Impo Electronic A/S, Svovlhatten 3, DK-5220 Odense SØ, Denmark · Tel. [phone] · Fax [phone]
6. Functions
6.1 Passage time + run-time t
A
, t
B
, t
A-B
. .1 Make selection using the command „F2“. If the input signals (photo units) are OK, the input LEDs
will remain constantly lit. Once the experiment has been concluded, the results will be ready for
reading.
. .2 The computer program used for reading can be a loop solution, or a straight forward one:
Read a result from AC7
Store the result in variable A
Read a result from AC7
Store the result in variable B
Read a result from AC7
Store the result in variable AB
. .3 As will appear from the above, the results appear in the same sequence as shown on the front
panel.
. .4 Immediately the last result has been sent from the counter, preparation is automatically made for a
new experiment.
6.2 Start A - Stop B
. .1 Select the function using the command „F3“.
In this function, enumeration is shown directly on the display, as when the counter is manually
operated. When the time is stopped with input B, the result is ready for reading by the computer.
The result remains on the display and the inputs are „locked“, as with manual operation, until the
command „F“, which prepares the counter for the next time measurement, is received from the
computer.
. .2 There is only one result to be read in this function:
Read the result from AC7
Store the result in a variable AB
6.3 Frequency A
. .1 Select the function using the command „F4“.
The counter is now ready to receive a command „D“ which will initiate measurement. The D.R. push-
button can be used to start a measurement, instead (as with manual operation of the counter). The
D.R. push-button can, however, be put out of function with the command „R“, which renders the
push-button ineffective until some other command has been executed (usually „D“).
. .2 Once measurement has been started, i.e. the input port has been opened and there is a signal at
the port, the counter cannot be interrupted while measurement is in progress. Only when the result
of the single measurement is ready, the communication with the counter can be resumed.
The result is shown on the display.
. .3 The next measurement is begun, when the command „D“ is received (with D.R. push-button, if
necessary).
. .4 An example of a possible program structure:
Send command „F4“ to AC7.
DO UNTIL no more measurements are required:
Send command „D“ to AC7
Read result from AC7