Properties and functions
1.3 Further services and characteristics
SIMATIC CP 4163-1
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Operating Instructions, 12/2022, C79000-G8976-C588-01
1.3
Further services and characteristics
•
Media redundancy
Within an Ethernet network with a ring topology, the CP supports the media redundancy
protocol (MRP). You can assign the role of media redundancy manager and client to the
CP.
•
Time-of-day synchronization over Industrial Ethernet using the following
configurable modes (alternative):
–
SIMATIC mode
The CP receives MMS time-of-day messages and forwards these to the CPU or sends
them to a lower-level network as (time) master time frames.
–
NTP (Network Time Protocol)
The CP sends timeofday queries at regular intervals to an NTP server and forwards the
time to the CPU.
Note
The time master in the rack is the CPU
Note the following fundamental behavior of the SIMATIC S7-4100:
The CPU always synchronizes all modules in the rack.
•
SNMP
The CP supports data queries using SNMP (Simple Network Management Protocol) in
version V1. For the supported MIBs, refer to the section Diagnostics with SNMP (Page 35).
•
IP configuration
For the interface, you can configure how and by which method the CP is assigned the IP
address, the subnet mask and the address of a gateway.
•
Diagnostic buffer
Diagnostic events of the CP are shown in the "Diagnostic view" of the engineering and
entered in the diagnostic buffer of the CPU.
•
Detection of double IP addressing in the network
If duplicate addressing occurs in the network after a module replacement, the CPU detects
this.
Reaction of the CP when double addressing is detected: The red LED (ERROR) flashes and
an event is entered in the diagnostic buffer of the CPU.
