Omega Engineering M-4066 - Manual (Page 35)

OMWT-SOFT-OPC Server OMWT-SOFT-OPC Server Tags N 31
Device Tag Names
The Server uses device tag names to allow access to the I/O data and specific
operational information. Tag names are dependent on the type of devices used.
Temperature
(OMWT-TEMP15, OMWT-THERM): TEMPn or 'T' Prefixed Topic Names
online (R) - indicates if the device is communicating (0 or 1)
nodaladdress (R) – (TCP/IP Receiver). The node address starts at 1. For
TCP/IP Receivers, the node address corresponds to the node number
for the TCP/IP connection.
repeateraddress (R) – (Wireless mode) contains the location identifier of
the OMWT-REPEAT repeater. If the sensor did not pass through a
repeater then the value is 0.
polltime (R/W) - how often to poll the device (in milliseconds)
serialno (R) - registration number of the temperature sensor
input (R) - current temperature in engineering units
input.raw (R) - current temperature in ºC
input.units (R/W) -engineering units of the input tag (ºC, ºF, or ºK). When
this tag is written, it changes the temperature scale in the input.value
tag. input.units must be one of the following: "Celsius",”C”,
"Fahrenheit",”F”, or "Kelvin",”K”.
input.deadband (R/W) - filtering deadband in ºC
input.conv (R/W) - calibration and unit conversion parameters string.
(Cal1Raw,Cal1Engr,Cal2Raw,Cal2Engr)
input.desc (R) - General identification description field.
(R) – indicates that the tag is readable.
(R/W) – indicates that the tag is both readable and writeable. OPC Write operations
will either change an I/O point at the device, or an operation will be performed.