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Pin assignment
Table 8-9
Pin
1
2
3
4
5
6
7
Signal type: VI = voltage input; I = input; GND = reference potential (ground)
Table 8-10
Pin
1
2
3
4
5
6
7
Signal type: VI = voltage input; O = output; GND = reference potential (ground)
MCU 1720
Equipment Manual, 09/2019, A5E47437728B AB
X142 digital inputs/outputs
Signal name
Signal type
P24EXT
VI
NC-IO0
I
NC-IO1
I
MEXT
GND
NC-IO2
I
NC-IO3
I
MEXT
GND
X152 digital inputs/outputs
Signal name
Signal type
P24EXT
VI
NC-IO4
O
NC-IO5
O
MEXT
GND
NC-IO6
O
NC-IO7
O
MEXT
GND
Meaning
24 V power supply for DIOs
Dig. NC input
Dig. NC input
Ground for DIOs (electrically isolated with respect to M)
Dig. NC input
Dig. NC input
Ground for DIOs (electrically isolated with respect to M)
Meaning
24 V power supply for DIOs
Dig. NC output (electrically isolated)
Dig. NC output (electrically isolated)
Ground for DIOs (electrically isolated)
Dig. NC output (electrically isolated)
Dig. NC output (electrically isolated)
Ground for DIOs (electrically isolated)
Connecting
8.11 Digital inputs/outputs
75
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