Diagnostics and upkeep
5.2 SNMP
You will find detailed information on SNMP and the Siemens Automation MIB in the manual
"Diagnostics and Configuration with SNMP" that you will find on the Internet:
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Range of performance of the CM
The CM supports the following SNMP versions:
● SNMPv1
Traps are not supported by the CP.
The CM supports the following MIBs:
● MIB II (acc. to RFC1213)
The CM supports the following groups of MIB objects:
– System
– Interfaces
– IP
– ICMP
– TCP
– UDP
– SNMP
● LLDP MIB
● MRP Monitoring
● Siemens Automation MIB
Write permissions
Write access is permitted only for the following MIBs and MIB objects:
● Siemens Automation MIB, group "System"
The group returns status information about the CM interfaces.
Write access is permitted only for the following MIB objects:
– sysContact
– sysLocation
– sysName
● MRP Monitoring, object "mrpDomainResetRoundTripDelays"
A write command "resetDelays(1)" to the object sets the values of
"mrpDomainRoundTripDelayMax" and "mrpDomainRoundTripDelayMin" to zero.
For all other MIB groups and objects, only read access is possible for security reasons.
38
A set sysName is sent as the host name using DHCP option 12 to the DHCP server to
register with a DNS server.
Operating Instructions, 07/2019, C79000-G8976-C355-04
CM 1542-1