ETAS ES720.1 - I;O Port; Overview and Functions; Application Examples

ES720.1 - User’s Guide26
Description of Functions ETAS
4.5 "I/O" Port
4.5.1 Overview and Functions
At the "I/O" port, a 26-pin HD Sub-D socket, digital inputs and outputs are pro-
vided with different functions:
Pin at
"I/O"
Num-
ber of
I/O
Type Description
1-4 4 Output TTL-compatible, can be used as INCA signal
9 1 Output TTL-compatible, corresponds to operating state of
th
e ES720.1, can be used to switch on the operat-
ing voltage of additional me
asuring modules:
High = ES720.1 is switched on,
Low = ES720.1 is in standby
11 1 Input TTL-compatible, for connecting an external
"Remo
te Power" button to ground;
function of external "Remote Power" button and
"Pow
er" button on the module is identical
12 1 Input TTL-compatible, terminal 15 (Tl.15)
13-16 4 Input TTL-compatible, can be used for
INCA signals (sig-
nal status, trigger); max. sample rate 10 Hz
19-24 6 Output Status of outputs corresponds to the status of the
LE
D assigned in each case on the front of the
module
The ES720.1 can record the signals of digital inputs and control the digital out-
puts. The inputs and outputs are protected against overvoltages.
4.5.2 Application Examples
Digital Inputs
The digital inputs can be used for:
• Monitoring terminal 15 (Tl. 15, ignition on)
– Booting the module with the rising edge at Tl. 15
– Shutting down the module with the
falling edge at Tl. 15
• Controlling the module through manual a
ctivation
– Starting the recording with the manual trigger
– Selecting the configuration
– Manually starting the data upload
• Measuring digital signals
– Recording status signals togeth
er with other signals
– Recording events (marks)