Wiring
This section contains the block diagram of the module and outlines various wiring options.
You can find information on wiring the front connector, creating a cable shield, etc. in the
Wiring section of the S7-1500/ET 200MP
(http://support.automation.siemens.com/WW/view/en/59191792) system manual.
Note
Do not insert the potential jumpers included with the front connector!
Wiring and block diagram
The figure below shows you how to wire the module and the assignment of the channels to
the addresses (input byte a to input byte b).
①
xN
Figure 3-1
DI 16x230VAC BA Digital Input Module (6ES7521-1FH00-0AA0)
Manual, 09/2016, A5E03485975-AD
Backplane bus interface
Supply voltage AC
Block diagram and terminal assignment
CHx
Channel or channel status LED (green)
RUN
Status display LED (green)
ERROR
Error display LED (red)
3
13