￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
7 Appendix
889 IC Sample Center
￭￭￭￭￭￭￭￭
47
7.2.1
Properties of the I/O interface
When the injection valve switches from
LOAD
to
INJECT
, an
Inject
Marker
signal (Contact closure) will be generated at the output lines of the
I/O interface for 0.1…2.0 s.
￭
V
max
= 28 V
DC
/V
AC
￭
I
max
= 0.25 A
7.2.2
Pin assignment of the remote interface
1
5
6
9
5
1
9
6
Figure 15
Pin assignment of I/O socket and plug
Table 1
Inputs and outputs of the I/O interface
Pin No.
Assigment
1
Output - Common (COM)
2
Output - Normally open (NO)
3
Input 1 (TTL)
4
Input 2 (TTL)
5
GND
6
Output - Normally close (NC)
7
+5 volts
8
GND
9
GND
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