Siemens programming the cpu 314c-2dp manual NOTES ON THE USE OF THE CPU 314C-2DP

Automation and Drives - SCE

2.NOTES ON THE USE OF THE CPU 314C-2DP

The CPU 314C-2DP is shipped with an integrated PROFIBUS DP interface and integrated inputs/outputs.

The following PROFIBUS protocol profiles are available for the CPU 314C-2DP:

-DP interface as master according to EN 50170.

-DP interface as slave according to EN 50170.

PROFIBUS-DP (decentralized peripherals) is the protocol profile for connecting decentralized peripherals/field units with very fast reaction times.

The addresses of the input and output modules of this CPU can be parameterized.

Due to the following performance data, this CPU is especially suitable for training purposes:

-48 kByte RAM, load memory in the form of a plug-in MicroMemoryCard (MMC), 64 kByte to 4 MByte

-8192 bytes DI/DO, including 992 bytes central

-512 bytes AI/AO, including 248 bytes central

-0.1 ms / 1 K commands

-256 counters

-256 timers

-256 clock memory bytes

-24 DIs, including 16 which can be used for integrated functions; all can be used as alarm inputs as well

-16 DOs, integrated; 4 of which are fast outputs

-4 AIs for current/voltage, 1 AI resistor integrated

-2 AOs for current/voltage, integrated

-4 pulse outputs (2.5 kHz)

-4-channel counting and measuring with 24 V (60 kHz) incremental encoders

-Integrated positioning function

Foreword	Notes	Hardware configuration	STEP 7 program	Testing
T I A Training Document		Page 6 of 25		Module
				A5
Issue date: 02/2008			Programming the CPU 314C-2DP