Configuration In Step 7 V5; Overview Of The Configuration - Siemens CP 1243-8 IRC Operating Instructions Manual

Configuration and operation

4.6 Configuration in STEP 7 V5

Configuration in STEP 7 Basic
In STEP 7 Basic, two methods of time-of-day synchronization can be configured for the CP:
● Time-of-day synchronization from the STEP 7 V5 project
If the "telecontrol communication" (parameter group "Communication types" is enabled in
STEP 7 Basic, the settings for the time-of-day synchronization are adopted as they were
configured for the proxy in the STEP 7 project when the configuration data is imported.
● NTP / NTP (secure)
If "telecontrol communicationis disabled, it is only possible to synchronize using NTP
mechanisms in STEP 7 Basic
The method NTP (secure) can only be selected if the security functions are enabled.
Configuration:
– Security functions not enabled:
– Security functions enabled:
The secure method NTP (secure) uses authentication with symmetrical keys according to
the hash algorithms MD5 or SHA-1.
You can create and manage additional NTP servers also of the type NTP (secure) in the
global Security settings of the STEP 7 project.
You will find further notes on configuration in the STEP 7 information system.
Time-of-day synchronization of the CPU
In STEP 7 Basic, in the parameter group "Communication with the CPU", you can set
whether or not the current time of day of the CP will be made available to the CPU via a PLC
tag.
4.6 Configuration in STEP 7 V5
4.6.1

Overview of the configuration

Basic procedure for configuration
When configuring in STEP 7 V5, follow the steps described in the system manual SINAUT
ST7 volume 2 "Software". For the manual see /3/ (Page 136).
You will find special features of the configuration of the CP or its proxy in the following
sections.
48
The time-of-day synchronization is configured in the "Ethernet interface > Time
synchronization" parameter group. Only NTP is available as the synchronization
method.
The time-of-day synchronization is configured in the "Security" parameter group. NTP
and NTP (secure) are available as the synchronization methods.
Operating Instructions, 06/2015, C79000-G8976-C385-01
CP 1243-8 IRC