The NA-RTU selects the appropriate acquisition/control/communication mode through configuration/configuration, which is fully applicable to the application of the water source well field measurement and control system. It also has the functions of timing and instant collection of data on production process data (wellhead pressure, external flow, water temperature, liquid level) and electrical/electrical energy of water wells. It can remotely control the start and stop of water source wells and control the function of the constant flow output of water source wells by adjusting the closed loop frequency of the frequency converter.
Water source control cabinet
The following is the actual configuration of NTU's RTU's water source well control system in an oil field, which can be used as a reference for other similar projects. The rich functions and good compatibility of NTU's Pride Extension can satisfy the control requirements of most water wells, and it is based on actual conditions. Configuration can be.
I/O interface conventions of the "water well" mode RTU
Numbering
RTU interface
Features
Note
1
COM1
(1) Can be configured as an uplink communication interface
(2) Support for RTU configuration through COM1
2
COM2
(1) Address 1 of COM2 is assigned to the inverter
(2) Can access other external devices
3
COM3
(1) Address 1 of COM3 assigned to the smart meter
(2) Can access other external devices
The maximum number of 32
4
COM4
(1) Read data for field condition sensor measurement
The maximum number of 32
5
Ethernet interface
(1) Can be configured as an uplink communication interface
6
DI
(1) DI8 for contactor fault diagnosis
7
DO
(1) DO1: motor start control;
(2) DO2: motor stop control;
8
AI
(1) AI1: Tank Level Measurement
Flow closed loop control electromagnetic flowmeter access COM4
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