Digital i/o: digitaln – Omega Engineering M-4066 User Manual

Page 38

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34 N OMWT-SOFT-OPC Server Tags

OMWT-SOFT-OPC Server

DIGCOUNTER and Directional Counter:

DIGCOUNTERn and DIRECTCNTn

(OMWT-IRCNT, OWT-DIRCNT)

online(R) - indicates if the device is communicating (0 or 1)
polltime(R/W) - how often to poll the device (in milliseconds)
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.

serialno(R) - registration number of the temperature sensor
dio.inputa(R) – state of the inputa, 1 or 0
dio.inputb(R) – state of the inputb, 1 or 0
cnt.inputa(R) - current count of dio.inputa
cnt.inputa.diff (R/W)- current count from the time the OMWT-SOFT-OPC

was started or when the variable was reset to 0.

cnt.inputa.time(R) - time in milliseconds of last update (uses Win API

GetTickCount())

cnt.inputa.scale(R/W) - value multiplied against the counts
cnt.inputa.units (R/W)- units description field
cnt.inputa.desc(R/W) - general purpose description field
cnt.inputb(R) - current count of dio.inputb
cnt.inputb.diff(R) - current count from the time the OMWT-SOFT-OPC

was started or when the variable was reset to 0.

cnt.inputb.time(R) - time in milliseconds of last update (uses Win API

GetTickCount())

cnt.inputb.scale(R/W) - value multiplied against the counts
cnt.inputb.units(R/W) - units description field
cnt.inputb.desc(R/W) - general purpose 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.

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