Siemens SIMATIC NET S7-300 User Manual

8 NCM S7 Diagnostics
A-276
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
8.4 How to Use Diagnostics
Procedure
To use diagnostics efficiently, particularly when working with the diagnostic tool for
the first time, the following procedure can be recommended.
1. Use the sequence shown below as a basis for using diagnostics:
Start NCM S7 Diagnostics:
- Establish the connection to the CP (Section 8.3
- Set the options (Section 8.2.2)
- Identify the Ethernet CP
Query the current status of the CP
“Operating Mode” diagnostic object
View / evaluate the diagnostic buffer to obtain an overview
and detailed explanation of diagnostic events.
TCP connections
ISO transport connections/
ISO-on-TCP connections
UDP connections
If the CP is in the RUN mode
If necessary, correct configuration or programming.
If the CP is not
in the RUN mode
If anything unusual is
displayed for
- connection status
- receive status,
- send status
2. Clarify your problem or task using the check list in Section 8.6 and select the
diagnostic function based on the recommendation there.

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)