Gantner IDL 101 - Digital Input Variable

IDL 101
FUNCTIONAL DESCRIPTION
HB_IDL101_E_V222.doc
43
Gantner Instruments Test & Measurement GmbH
6.3. Digital Input Variable
The following functions can be realized by means of the Digital Input Variable:


 Digital status recording


 Frequency measurement


 Counter
The above mentioned functions are based on incremental measuring except the digital status recording. Incremental
measuring means to count while measuring. You can count pulses, which are released by e.g. angle coders.
If Digital Inputs I/O 07 to I/O 16 are used for Counter measurement the measurement rate is 100Hz.
Digital Status Recording:
Figure 6.9 Digital status recording
I/O 1
status
"0" "1" "0" "1"
signal diagram:
For the acquisition of digital status information (on/off, closed/open, left/right, etc.) the signal applied at the digital
input is collected and is held ready for further processing in the
Datalogger IDL 101 or for transmission via bus.
The digital input is set (switch closed) as long as the applied signal voltage remains under the threshold value of 1.0 V.
The digital information can be scanned as 1/0 information via bus.
Connection Scheme Circuit
I/O 010 V
I/O 01
+10 .. 30 VDC
0 V
0
V
A
B
R
X
T
X
C
O
M
I
/
O
0
2
I
/
O
0
4
+
1
0
.
.
3
0
V
RS 232RS 485SUPPLY
I
/
O
0
6
I
/
O
0
1
I
/
O
0
3
I
/
O
0
5
INTELLIGENT DATA LOGGER
ADR