
Table of contents
1 Security information.............................................................................................................................. 5
2 Preface ................................................................................................................................................... 7
3 Product overview................................................................................................................................... 9
3.1 Interface module ................................................................................................................. 9
3.2 Accessories........................................................................................................................ 10
3.3 Fail-safe I/O modules in the I/O device ................................................................................ 11
3.3.1 Response times for the fail-safe modules............................................................................ 11
3.3.2 Redundancy switchover times for the fail-safe modules ...................................................... 12
3.4 Shared Device.................................................................................................................... 12
3.4.1 Using IO device as Shared Device ....................................................................................... 12
3.4.2 Shared device in the same STEP 7 project ........................................................................... 12
3.4.3 Shared device in dierent STEP 7 projects........................................................................... 14
3.4.4 Useful information on using shared devices........................................................................ 16
3.4.5 IO device as shared device.................................................................................................. 17
3.4.6 Access types ...................................................................................................................... 17
3.4.7 Overview of access types ................................................................................................... 18
3.4.7.1 Full access ......................................................................................................................... 18
3.4.7.2 No access .......................................................................................................................... 18
3.5 Conguration limit for IO devices ....................................................................................... 19
3.5.1 Maximum number of connections to IO controllers ............................................................ 19
3.5.2 Maximum permissible bytes............................................................................................... 19
4 Terminal............................................................................................................................................... 21
4.1 24 V DC supply voltage ...................................................................................................... 21
4.2 Schematic circuit diagram .................................................................................................. 22
5 Parameters........................................................................................................................................... 23
6 Behavior of the device name ............................................................................................................... 25
7 Displays and interrupts........................................................................................................................ 27
7.1 Status and error displays .................................................................................................... 27
7.2 LEDs .................................................................................................................................. 28
7.2.1 RN LED .............................................................................................................................. 28
7.2.2 ER LED ............................................................................................................................... 29
7.2.3 MT LED.............................................................................................................................. 30
7.2.4 ACT LED............................................................................................................................. 30
7.2.5 PWR LED ............................................................................................................................ 31
7.2.6 LEDs LK1/LK2 on the BusAdapter ........................................................................................ 31
7.3 Useful information on error indicators ................................................................................ 32
7.4 Error display....................................................................................................................... 32
7.4.1 Error type and error location display ................................................................................... 32
IM 155-6 PN HA
Equipment Manual, 09/2021, A5E39262148-AE 3