Simple Network Management Protocol (Snmp) - GE IC755CxS06RDx User Manual

3.14 Simple Network Management Protocol (SNMP)

HMI Tags
Alarms
System Info
Software
For public disclosure
The SNMP is an application–layer protocol defined by the Internet Architecture Board
(IAB) in RFC1157 that is used for exchanging management information between network
devices. It is a part of the Transmission Control Protocol/Internet Protocol (TCP/IP) suite.
The QuickPanel + Operator Interface is enabled as an SNMP Agent with the capability to
communicate with SNMP Managers (software tools run independently and are not part of
QuickPanel + Operator Interface) for the following purposes:
• Send notification of HMI Alarms as Traps
• Provide live values for SNMP Manager's GET/GETNEXT Query calls for HMI Tags
The following diagram illustrates the QuickPanel
communicate with a SNMP Manager for Traps notification and responding to Query HMI
Tag values.
SNMP
Manager
QuickPanel + Management Information Base (MIB) Overview
+
The QuickPanel SNMP Agent maintains a MIB that describes the managed device
parameters like HMI Tags, alarms, and such. The SNMP Manager uses the MIB to
request specific information for the SNMP Agent and translates the information as needed
for the SNMP Managers or Network Management System (NMS).
The MIB is a collection of information for managing network elements. It is a plain text
file, self-explanatory, and prepared based on the Structure of Management Information
(SMI), an adapted subset of Abstract Syntax Notation One (ASN.1) standard and
notation.
Attention
The MIB is comprised of managed objects identified as Object Identifier (Object ID or
OID). Each Identifier is unique and denotes specific characteristics of a managed device.
When queried, the return value of each identifier may be different.
+ operating as the SNMP Agent to
QuickPanel
Device
The QuickPanel + MIB is follows the SNMP V2c and
is also be compatible with SNMP V1 based on the
strictness of MIB compilers supported by SNMP
Managers.
+
GFK-2847R 45