Modbus BP WellControl OPC Items

Standard Items

See Device Standard Items.

Protocol Items

See Common Modbus OPC Items.

Common Extended Items

See Common Modbus OPC Items. In addition to the common items, the Modbus BP Well Control protocol also has the following Extended items:

Modbus BP Well Control Extended Items

ItemData TypeDescription
LastCycleLogDateTimestamp of the last cycle log record retrieved.
LastRTUConfigReadDateTimestamp of the last RTU configuration read.
LastRTUConfigWriteDateTimestamp of the last RTU configuration write.
MoveCycleLogDateMove the cycle log history retrieval pointer to an earlier record. Write a positive number to move the pointer back in time. The written value represents the number of cycle logs to move. Max value is 31.
ReadRTUConfigI2Write a one to initiate a poll session to read the current configuration values into the Last Read file. Upon success, value will return to zero.
ResetCycleLogBOOLErase the cycle log retrieval pointer (and re- collect all logs during the next retrieval).
RetrieveCycleLogI2Retrieve new cycle logs.
RTUConfigStateI2Numeric value indicating the current state of an RTU Configuration read or write.
0 – Idle or Success
1 – Reading configuration values
2 – Writing configuration values
8 – Cold boot detected
-1 – Error state
TimeSyncI2Write a one to initiate a Time Sync with the device. Upon success, value will return to zero.
WriteRTUConfigI2Write a one to initiate a configuration download of the current values in the Last Read file. Upon success, value will return to zero.

Related Topics:

Common Modbus OPC Item Conversion

Item Scaling



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