Pin Signal name Meaning
5 DI16 Digital input 16
6 DI17 Digital input 17
7 M1 Reference potential for terminals 1 to 6
8 M Ground
9 DI/DO8 Digital input/output 8 (rapid input)
10 DI/DO9 Digital input/output 9 (rapid input)
11 M Ground
12 DI/DO10 Digital input/output 10 (rapid input)
13 DI/DO11 Digital input/output 11 (rapid input)
14 M Ground
An open input is interpreted as "low". 
Note
Terminal M1 must be connected for the digital inputs (DI) 0 to 3 and 16/17 to function. This can 
be done as follows:
● Connect the ground reference of the digital inputs.
● Jumper to terminal M: This removes the electrical isolation for these digital inputs.
Parameter Value
Current consumption Typical: 10 mA at 24 VDC
Galvanic isolation The reference potential is terminal M1
As an input
Voltage -3 V to 30 V
Current consumption Typical: 10 mA at 24 VDC
Signal level (including ripple) High signal level: 15 V to 30 V
Low signal level: -3 V to 5 V
Signal propagation times Inputs / "fast inputs":
L → H: Approx. 50 μs/5 μs
H → L: Approx. 100 μs/50 μs
As an output
Voltage 24 VDC
Max. load current Per output: 500 mA continuous short-circuit proof
Connectable components
8.1 NX10.3 / NX15.3
PPU 1740
Equipment Manual, 01/2019, A5E47615272B AA  89