Simple Network Management Protocol (SNMP)

This topic only applies to the RMC200, which is the only RMC that supports SNMP.

SNMP is an open protocol running on top of UDP for collecting and organizing information about devices on IP networks. It is widely used in network management for network monitoring. Support for SNMP is required by PROFINET devices wishing to comply with the Topology Engineering & Discovery feature, which is especially important for devices with multiple Ethernet ports like the RMC200.

Use of SNMP is beyond the scope of this documentation. This topic includes details that will be useful to an experienced IT professional for utilizing the SNMPv1/v2c agent included in the RMC200 controller.

SNMP Versions

The RMC200 supports SNMPv1 and SNMPv2c. It does not support SNMPv3. The RMC200 operates as an SNMP agent.

SNMP Community Strings

The RMC200 supports the following two SNMP community strings:

• Read-only community string: “public”
  This community string only supports reading objects over SNMP.

• Read-write community string: “private”
  This community string supports reading and writing object values over SNMP. However, the only writable objects are sysName, sysLocation, and sysContact, which do not affect the operation of the motion controller.

The RMC does not allow changing the community strings. Both of these community strings are required in order for the PROFINET Topology Engineering & Discovery feature to work.

SNMP Traps

The RMC200 does not support generating traps and therefore does not support setting trap destinations.

Supported Management Information Bases (MIBs)

SNMP groups managed data into multiple Management Information Bases (MIBs). The RMC200 supports two main MIBs: MIB-2 and LLDP-MIB. Each of these MIBs also includes sub-MIBs. Here is a full list of the major object identifiers (OIDs) supported in the RMC200 and the associated MIBs and standards:

See Also

RMC Ethernet Protocols

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