Specifications

DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
6 Manual, 04/2015, A5E03485935-AE
Table of contents
Preface ................................................................................................................................................... 4
1 Documentation guide .............................................................................................................................. 7
2 Product overview .................................................................................................................................... 9
2.1 Properties ................................................................................................................................. 9
2.2 Functions ................................................................................................................................ 11
2.2.1 Count ...................................................................................................................................... 11
3 Wiring ................................................................................................................................................... 13
4 Parameters/address space ................................................................................................................... 15
4.1 Parameter .............................................................................................................................. 15
4.1.1 Parameters DI mode .............................................................................................................. 16
4.1.2 Explanation of the parameters of the DI mode ...................................................................... 17
4.1.3 Parameters of the Counting mode ......................................................................................... 18
4.1.4 Explanation of the parameters of the Counting mode ........................................................... 20
4.2 Address space ....................................................................................................................... 22
4.2.1 Address space DI mode ......................................................................................................... 23
4.2.2 Address space Counting mode .............................................................................................. 27
4.2.3 Examples of counting ............................................................................................................. 31
5 Interrupts/diagnostics alarms................................................................................................................. 36
5.1 Status and error displays ....................................................................................................... 36
5.2 Interrupts ................................................................................................................................ 38
5.3 Diagnostics alarms ................................................................................................................. 40
6 Technical specifications ........................................................................................................................ 41
A Dimensional drawing ............................................................................................................................. 45
B Parameter data records ........................................................................................................................ 47
B.1 Parameter assignment and structure of the parameter data records .................................... 47
B.2 Structure of the parameter data records DI mode ................................................................. 48
B.3 Structure of the parameter data records Counting mode ...................................................... 50
C Open Source Software .......................................................................................................................... 53