Functions of the IM 151/CPU
5-4
ET 200S Interface Module IM 151/CPU
A5E00058783-01
5.2
The Mode Selector and LEDs
Mode Selector
The mode selector of the IM 151/CPU is designed as a 3-step toggle switch (see
below):
RUN–P
STOP
MRES
Figure 5-1
Mode selector
Positions of the Mode Selector
The positions of the mode selector are explained in the order in which they are
arranged on the IM 151/CPU.
Table 5-2
Positions of the Mode Selector
Position
Description
Description
RUN-P
RUN-PROGRAM
mode
The CPU processes the user program.
STOP
STOP mode
The CPU does not process the user program.
Programs can:
Be read out from the CPU using a programming device
(CPU
PG)
Transferred to the CPU (PG
CPU)
MRES
Reset CPU
memory
Momentary-contact position of the mode selector for resetting the
CPU memory.
You must adhere to a specific sequence when resetting the CPU
memory using the mode selector (see Section 4.2)
Summary of Contents for SIMATIC IM 151/CPU
Page 6: ...Important Information vi ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 14: ...Contents xiv ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 42: ...ET 200S in the PROFIBUS Network 3 12 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 68: ...Commissioning and Diagnostics 4 26 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 98: ...Technical Specifications 6 8 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 108: ...Cycle and Response Times 7 10 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 190: ...Execution Times of the SFCs and SFBs C 4 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 196: ...Migration of the IM 151 CPU D 6 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...