Siemens S7-400 - 5.4 Commissioning

Installation, connection, commissioning, removal
5.4 Commissioning
CP 443-1 Advanced
48 Equipment Manual, 03/2023, C79000-G8976-C256-07
Separating the PROFINET and the gigabit interface
It is advisable to connect the PROFINET interface and gigabit interface physically to separate
networks. If the two interfaces are not separated, problems can occur when establishing an
S7 connection using the ISO protocol under the following conditions:
• Connections to the same partner address were configured via different interfaces.
• When an S7 connection configured at one end needs to be established.
5.4 Commissioning
5.4.1 Commissioning
The steps for commissioning the CP are explained below. Commissioning involves the
address assignment and downloading the configuration data and user programs.
Result: The CP is reachable in the network and has been supplied with configuration data.
Follow the steps outlined below:
1. Download the configuration data from your STEP 7 project to the S7-400 station.
Requirement: You have configured the CP in a STEP 7 project for the properties and
services you want to use.
You can connect the PG when configuring the CP as follows:
– Via MPI
– Via Industrial Ethernet
For further details, refer to the general part /2/ (Page 103) of this manual:
– For initial addressing (node initialization)
– For downloading the defined configuration
The PG / PC requires a LAN attachment, for example via a CP 1613 or CP 1411 and must
have the necessary software (for example the S71613 package or SOFTNET IE). The TCP/IP
protocol or ISO protocol must be installed. The protocol used must then be applied to the
S7ONLINE access point.
2. Use the diagnostics functions during commissioning and to analyze problems.
You will find an overview of the options in the section Diagnostics options (Page 81).
Note
Module replacement
- adapting the cycle load with an older CPU
If you use the CP as a replacement (for example for a CP
443–1 "GX11") with an older CPU,
the default communication load setting of 20% for the CPU can lead to overload. In this case,
you shoul
d set the communication load for the CPU in STEP 7 (parameter "Scan cycle load
from communication") to a lower value
- for example 10%.
With CPUs as of version V5.1, changing the setting is unnecessary.