Specifications

Parameters/address space
4.2 Address space
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
28 Manual, 04/2015, A5E03485935-AE
Figure 4-6 Assignment of the address space of the control interface of the DI 32x24VDC Count
(bytes 8 to 15)
Feedback interface
The following figure shows the address assignment of the module in the process image
input. The feedback interface for the counters (channels 0 and 1) begins at input byte x+8.
Via the feedback interface, the user program receives current counted values and status
information from the module.