InstrumentTag Length
- Last UpdatedFeb 13, 2023
- 1 minute read
- PI System
- PI Interface for SNMP 1.7.0.37
- Interfaces
Depending on the version of the PI API and the PI Data Archive, this interface supports an InstrumentTag attribute whose length is at most 32 or 1023 characters.
|
PI API |
PI Data Archive |
Maximum Length |
|---|---|---|
|
1.6.0.2 or later |
3.4.370.x or later |
1023 |
|
1.6.0.2 or later |
Earlier than 3.4.370.x |
32 |
|
Earlier than 1.6.0.2 |
3.4.370.x or later |
32 |
|
Earlier than 1.6.0.2 |
Earlier than 3.4.370.x |
32 |
The instrumenttag attribute configures the IP address or host name of the SNMP device that is the data source for an input point or the target of an output point.
Note: All PI Interface for SNMP tags must have a host defined in the instrumenttag attribute. The SNMP security file is not a global replacement for this configuration.
Specify the setting using the following format (note the semicolon terminator):
host=device[:port];
host=192.168.100.11;
host=router1;
host=192.168.100.11:5161;
Note: Setting the host=Device[:port] in instrumenttag overrides any setting made in the ICU or in the (obsolete) pisnmp.ini file.