Siemens programming the cpu 314c-2dp 사용자 설명서
Automation and Drives - SCE
T I A Training Document
Page 8 of 25
Module
Status and fault/error displays
The CPU has the following LED displays:
The CPU has the following LED displays:
Slot for the SIMATIC Micro Memory Card (MMC)
A SIMATIC Micro Memory Card (MMC) is used as a memory module for the CPU 31xC. The MMC
A SIMATIC Micro Memory Card (MMC) is used as a memory module for the CPU 31xC. The MMC
can be used as a load memory and as a transportable data carrier. The MMC must be plugged in
before the CPU can be operated because the CPUs 31xC do not have an integrated load memory.
before the CPU can be operated because the CPUs 31xC do not have an integrated load memory.
Mode selector
The mode selector can be used to choose the current operating mode of the CPU. The mode
selector is designed as a toggle switch with 3 positions.
The mode selector can be used to choose the current operating mode of the CPU. The mode
selector is designed as a toggle switch with 3 positions.
Positions of the mode selector
The positions of the mode selector are explained in the same sequence as they occur on the CPU:
The positions of the mode selector are explained in the same sequence as they occur on the CPU:
Position Description Comments
RUN
RUN mode
The CPU is processing the user program
STOP
STOP mode
The CPU is not processing a user program
MRES
Memory Reset
Button position of the operating mode switch for a memory
reset of the CPU. A CPU memory reset requires a specific
operating sequence (refer to the Installation Manual,
Chapter Commissioning)
reset of the CPU. A CPU memory reset requires a specific
operating sequence (refer to the Installation Manual,
Chapter Commissioning)
Foreword Notes
H
H
a
a
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d
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w
a
a
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c
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f
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n STEP 7 program
Testing
A5
Issue date: 02/2008 Programming the CPU 314C-2DP