Modbus BP WellControl OPC Items

Standard Items

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

Item	Data Type	Description
LastCycleLog	Date	Timestamp of the last cycle log record retrieved.
LastRTUConfigRead	Date	Timestamp of the last RTU configuration read.
LastRTUConfigWrite	Date	Timestamp of the last RTU configuration write.
MoveCycleLog	Date	Move 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.
ReadRTUConfig	I2	Write 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.
ResetCycleLog	BOOL	Erase the cycle log retrieval pointer (and re- collect all logs during the next retrieval).
RetrieveCycleLog	I2	Retrieve new cycle logs.
RTUConfigState	I2	Numeric 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
TimeSync	I2	Write a one to initiate a Time Sync with the device. Upon success, value will return to zero.
WriteRTUConfig	I2	Write a one to initiate a configuration download of the current values in the Last Read file. Upon success, value will return to zero.