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12-3
12 SNMP Agent
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User’s Manual (W563)
12-1 SNMP Ag
ent
12
12-
1-2
S
pecificatio
ns
When a failure or some other specific problem occurs, a status report called a trap is sent. This enables
monitoring changes in status even if the SNMP manager does not monitor the built-in EtherNet/IP port
periodically. However, traps use UDP. Therefore, you cannot check to see if the SNMP manager
receives traps from the EtherNet/IP port. Thus, depending on the network status, some traps may not
reach the SNMP manager.
The structure of SNMP messages is as follows:
SNMP Traps
12-1-2 Specifications
Item
Specification
Protocol
SNMP
Agent
SNMPv1, SNMPv2c
MIB
MIB-II
Port No.
SNMP agent: 161 (UDP)
SNMP trap: 162 (UDP)
These can be changed in the Built-in EtherNet/IP Port Settings from the Sysmac
Studio.
Timing of SNMP trap opera-
tion
Status reports are sent to the SNMP manager at the following times.
•
When the Controller is turned ON
•
When links are established
•
When an SNMP agent fails to be authorized
Supported MIB commands
GetRequest/GetNextRequest
12-1-3 SNMP Messages
Item
Set value
Version
This value gives the SNMP version.
SNMPv1: 0
SNMpv2c: 1
Community
Community name for verification
PDU
This depends on the PDU type.
Built-in EtherNet/IP port
SNMP manager
Trap
SNMP agent
MIB
Controller power supply
turned ON.
MAC header
IP header
UDP header
SNMP message
Variable length (1,472 bytes max.)
Version
Community
PDU
Summary of Contents for Sysmac NY512-1300
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