Siemens SIMATIC NET CP 343-1 Manual de usuario descargar pdf (Pagina 49)

Notes on configuration and operation

6.9 SNMP agent

CP 343-1

Manual, 10/2012, C79000−G8976−C201-07

The CP also supports the LLDPMIB according to IEEE 802.1AB, the PROFINET expansions

of the LLDPMIB (see also IEC 61158106), the Automation System MIB and the

MRP Monitoring MIB.

Exceptions / restrictions:

● Write access is permitted only for the following MIB objects of the system group:

– sysContact

– sysLocation

– sysName

A set sysName is sent as the host name using DHCP option 12 to the DHCP server to

For all other MIB objects / MIB object groups, only read access is possible for security

reasons.

● Traps are not supported by the CP.

"Interfaces" MIB group

This group returns status information about the CP interfaces. The MIB objects of the ifTable

provide the status information of the interfaces. The "ifIndex" object identifier is assigned to

the CP interfaces as follows:

Table 6- 1 Assignment of ifIndex

ifIndex Type of interface

1-2 Port 1-2

3 Internal CP interface

Access permissions using community name

The CP uses the following community names to control the access rights in the SNMP

agent:

Table 6- 2 Access rights in the SNMP agent

Type of access Community name

Read access public

Read and write access private

*) Note the use of lowercase letters!

MIB files for your SNMP tools

If you use an SNMP tool, you will find the MIB files relevant to the CP in the STEP 7

installation in the following folder:

<Drive>\<Installation folder>\Siemens\Step7\S7DATA\snmp\mib

For the Automation System MIB, for example, these are the following files:

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 75 76

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Siemens SIMATIC NET CP 343-1 Manual de usuario Pagina 49