Preparation
First Steps in Commissioning CPU 31xC: Positioning with digital output
8 Getting Started, 08/2011, A5E00105533-03
Requirements
● You have an S7 300 station consisting of a power supply module and a CPU 314C-2 PtP,
314C-2 DP or 314C-2 PN/DP.
● STEP 7 is correctly installed on your PG.
The table below shows the STEP 7 version you need for each CPU.
CPU STEP 7 version
314C-2 PtP STEP 7 as of V5.5 + SP1 or STEP 7 as of V5.3 + SP2 with HSP 204
314C-2 DP STEP 7 as of V5.5 + SP1 or STEP 7 as of V5.3 + SP2 with HSP 203
314C-2 PN/DP STEP 7 as of V5.5 with HSP 191
● You have downloaded the sample projects from the Internet or have the CD of sample
projects included with the Technological Functions operating instructions.
● You have set up a project for the S7-300 station.
● The PG is connected to the CPU.
● You have an external 24 V DC power supply, an encoder, a drive, and the necessary
accessories, such as a front connector and wiring material.
● You provided hardware limit switches and EMERGENCY-OFF switches for safe and
reliable operation of the system.
● The CPU is correctly connected to a power supply.
WARNING
Operation of an S7-300 as part of plants or systems is subject to special rules and
regulations, which depend on its field of application.
Please make sure that you adhere to the applicable safety and accident prevention
regulations, for example IEC 204 (emergency stop systems).
You risk severe injury, or damage to machines and equipment if you ignore these
regulations.
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