Digital Input Modules - Siemens SIMATIC S7-1500 Automation System System Manual

Module overview

3.2 Digital input modules

3.2 Digital input modules
Overview of properties
The table below shows the essential properties of the digital input modules.
Table 3- 2 Digital input modules
Order no.: 6ES7521-1BH00-0AB0 6ES7521-1BL00-0AB0 6ES7521-1BH50-0AA0 6ES7521-1FH00-0AA0
Short description
Number of inputs 16
Electrical isolation No
between channels
Number of potential 1
groups
Rated input voltage 24 VDC
Diagnostic error Yes
interrupt
Hardware interrupt Yes
Isochronous Yes
operation supported
Input delay 0.05 ms to 20 ms
Reference
Further information on the technical specifications of the modules may be found in the
respective manuals.
22
DI 16x24VDC HF
32
Yes
2
24 VDC
Yes
Yes
Yes
0.05 ms to 20 ms
DI 32x24VDC HF DI 16x24VDC SRC BA
16
No
1
24 VDC
No
No
No
3 ms
DI 16x230VAC BA
16
Yes
4
120/230 VAC
No
No
No
25 ms
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01