1) Is the 'SNMP' Windows Service running on your machine? Start it using Windows Task Manager or Control Panel.
2) Is the data type of the variable that you try to read supported in Citect? Please consult the driver Help file for all supported types.
3) Is your tag definition correct? The addres of the variable tag should match an entry in SNMPVars.dbf.
For example address R100 should match a record in SNMPVARS.dbf where SNMPTYPE is 'R' and INDEX is 100.
The DEVNAME field in SNMPVARS.dbf should match the I/O device name (UNITS field) in variable.dbf
The field TAGNAME (and possibly also SNMPNAME) should match your variable tag name
The OID field should match the SNMP object-identifier in the MIB file (for example: .1.3.6.1.4.1.232.6.2.9.1.0). Make shure it starts with a dot (.)
SNMP is a rather difficult protocol to get running in Citect.
1) Is the 'SNMP' Windows Service running on your machine? Start it using Windows Task Manager or Control Panel.
2) Is the data type of the variable that you try to read supported in Citect? Please consult the driver Help file for all supported types.
3) Is your tag definition correct? The addres of the variable tag should match an entry in SNMPVars.dbf.
For example address R100 should match a record in SNMPVARS.dbf where SNMPTYPE is 'R' and INDEX is 100.
The DEVNAME field in SNMPVARS.dbf should match the I/O device name (UNITS field) in variable.dbf
The field TAGNAME (and possibly also SNMPNAME) should match your variable tag name
The OID field should match the SNMP object-identifier in the MIB file (for example: .1.3.6.1.4.1.232.6.2.9.1.0). Make shure it starts with a dot (.)
SNMP is a rather difficult protocol to get running in Citect.
