
Table of contents
1 Security information.............................................................................................................................. 5
2 Preface ................................................................................................................................................... 7
3 2D Matrix code (QR code / EAN code).................................................................................................... 9
4 Product overview................................................................................................................................. 11
4.1 I/O module......................................................................................................................... 11
4.2 Accessories........................................................................................................................ 12
4.3 Output disable switch ........................................................................................................ 13
4.4 Pulling the I/O module in runtime....................................................................................... 13
4.5 Terminal blocks.................................................................................................................. 14
5 Terminal ............................................................................................................................................... 15
5.1 Pin assignment .................................................................................................................. 15
5.2 Sample connection scheme for 1-wire connection.............................................................. 16
5.3 Sample connection scheme for 2-wire connection.............................................................. 16
5.4 Sample connection scheme for 3-wire connection.............................................................. 16
5.5 Schematic circuit diagram .................................................................................................. 16
6 Parameters........................................................................................................................................... 19
6.1 Module/channel parameters............................................................................................... 19
6.2 Parameter reassignment .................................................................................................... 20
6.3 Explanation of the module/channel parameters.................................................................. 20
6.3.1 Diagnostics, Missing supply voltage L+ ............................................................................... 20
6.3.2 IO redundancy ................................................................................................................... 21
6.3.3 Diagnostics, Short-circuit to ground.................................................................................... 21
6.3.4 Diagnostics, Wire break...................................................................................................... 21
6.3.5 Wire-break check ............................................................................................................... 21
6.3.6 Channel activated .............................................................................................................. 22
6.3.7 Input delay ........................................................................................................................ 22
6.3.8 Pulse stretching ................................................................................................................. 22
6.3.9 Hardware interrupts positive edge...................................................................................... 23
6.3.10 Hardware interrupts negative edge..................................................................................... 24
6.3.11 Potential group .................................................................................................................. 24
7 Displays and interrupts........................................................................................................................ 25
7.1 Status and error displays .................................................................................................... 25
7.2 LEDs .................................................................................................................................. 26
7.2.1 DIAG LED ........................................................................................................................... 26
7.2.2 MT LED.............................................................................................................................. 26
7.2.3 Channel status / fault LEDs ................................................................................................. 27
DI 16x24VDC HA
Equipment Manual, 10/2020, A5E39265608-AD 3