Siemens SIMATIC NET S7-300 User Manual

7 Programming FCs (Functions) and FBs for S7 Ethernet CPs
A-227
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
How It Works
The following diagram illustrates the normal sequence of connection configuration
triggered by an IP_CONFIG in the user program.
The job executes as soon as the parameter ACT is transferred with value 1.
Due to the segmented transfer of the CONF_DB, you will need to repeat the job
with ACT = 1 until completion of the job is indicated in the parameters DONE,
ERROR, and STATUS.
If you want to transfer a connection configuration again later, the parameter ACT
must first be transferred with value 0 in at least one further call.
User program
(CPU cycle)
Ethernet CP
Call IP_CONFIG
0, 0, Job active
1)
Call IP_CONFIG
Set ACT = 1
 CP is supplied with system data
(including the IP address);
 Connections are configured on the
CP.
Legend:
1)
Parameter transfer DONE, ERROR, STATUS
Time Time
Set ACT = 0
Call IP_CONFIG
0, 0, Job active
1)
CONF_DB is
transferred in
segments.
Supply CONF_DB with
data
Job completed without error
1)
Call IP_CONFIG
Notice
The data transferred with the configuration DB are stored in volatile memory on
the CP and must be downloaded to the CP again following a power down!
FB55 IP_CONFIG - continued

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)