Siemens Simatic S7-300 CPU 31xC Series User Manual

Commissioning
8.2 Commissioning procedure
S7-300, CPU 31xC and CPU 31x: Installation
8-4 Operating Instructions, Edition 08/2004, A5E00105492-05
Recommended procedure: Software
Table 8-2 Recommended commissioning procedure - Part II: Software
Tasks Comments Information can be found ...
• Switch on the PG and run
SIMATIC Manager
• Download the
configuration and the
program to the CPU
- in the
STEP 7 Programming
Manual
Debugging the I/Os Helpful functions are here:
• Monitoring and controlling tags
• Testing with program status
• Forcing
• Controlling outputs in STOP mode (PO enable)
Tip: Test the signals at the inputs and outputs using the
simulation module SM 374, for example.
in the
STEP 7 Programming
Manual
in the section
Debugging
functions, diagnostics and
troubleshooting
Commissioning PROFIBUS
DP or Ethernet
- in the section Commissioning
PROFIBUS DP
in the section
Configuring
PROFINET interface X2
Commissioning PROFINET
IO
in the System Description
PROFINET
Connect the outputs Commissioning the outputs successively. -
Danger
Proceed step-by-step. Do not go to the next step unless you have completed the previous
one without error / error message.
Reaction to errors
React to errors as follows:
• Check the system with the help of the check list in the chapter below.
• Check the LED displays on all modules. For information on their meaning, refer to the
chapters describing the relevant modules.
• If required, remove individual components to trace the error.
Reference
Important notes can also be found in the section Debugging Functions, Diagnostics and
Troubleshooting.
See also
Procedure: Commissioning the hardware (Page 8-1)

Siemens Simatic S7-300 CPU 31xC Series Specifications

General

Series	S7-300 CPU 31xC
Power Supply	24 V DC
Communication Interfaces	MPI, PROFIBUS DP
Programming Languages	LAD, STL, FBD, SCL
Operating Temperature	0°C to +60°C
Memory	48 KB - 512 KB
Dimensions	40 x 125 x 130 mm (varies by model)