Controls And Indicators Of The Cpus - Siemens SIMATIC S7-400 Reference Manual

Structure of a CPU 41x
1.1

Controls and Indicators of the CPUs

Controls and Indicators of the CPU 412-1
Module designation, version, abbre-
viated order number and firmware
version
LEDs INTF, EXTF, BUS1F,
FRCE, RUN, STOP
Slot for the memory card
Mode selector
Under cover
MPI/PROFIBUS DP interface
Incoming supply of external backup voltage
Figure 1-1
1-2
Layout of the Controls and Indicators of the CPU 412-1
CPU 412-1
6ES7412-1XF03-0AB0
V3.0.0
BUS1F
Automation System S7-400 CPU Specifications
A5E00165965-01