Abstract

There are 12 tanks, each tank an explosion of use of the magnetostrictive probe testing of a high oil level, through the test system 485 of the communication interface and fieldbus digital signal oil missionary work the integration of control cabinet controlled machine, the same time, we combine PLC or Adam4000 module, relay output to control the start and stop pump.Control of the scene to monitor real-time and historical information through the Industrial Ethernet fieldbus, transmission to the central control system of the Central Station.Central station system can be used Advantech 610H IPC original platform and MCGS generic version / network version of the project.In order to reach the scene, unmanned and remote monitoring.

I. System Overview:

1, computer management system for the tanks to outline:

Tank (sampling point) number: 12

Measurement Range: 10m

Medium density: 0.91lg/cm3

Measurement accuracy: + -0.5% integrated precision: + -1%

Interface flange: DN100 PN1.0

Interface:

• PC - with a graphical simulation, data display and alarm limit;
• Through the interface to operate the pump control can be achieved (output 'relay' switch signal);
• With variable input and modification of functional parameters;
• Use print function;
• Long-term storage and fault recognition.

Sampling point to the largest pipeline the length of interface: <= 100m

Explosion-proof: in line with the GB38364-83

2, the system at the Department:

1), the system key points: the high oil level measurement requirements

• Anti-factor high, in order to comply with this standard GB38364-83 GB is the original standard, is the essence of safety standards,it is now GB3836.4-2000.
• Higher measurement accuracy, + -0.5%, that is, the relative accuracy of the 10m range, the absolute accuracy of +-50mm.
• Higher oil tank for the measurement range 10m.

Therefore, we recommend the use of magnetostrictive oil level measurement system.GB3836.4which is in keeping with standardsin line with the requirements of iaIIBT4, absolute accuracy of 1mm.

Moreover, it provides bus connections 485, the maximum transmission distance is about 1219 meters.Sampling points at the scene of the largest pipeline operator interface to the length of <= 100m, there is no problem with communications.

2), requires some computer graphics simulation, data display and alarm limit, we recommend the use of embedded computer Ntouch,

• Model: TPC105TC-b.This is a set of low-power embedded CPU as the core (frequency 200 MHz), high-performance embedded industrial computer integration.Characteristics:
• 10.4 inches high-brightness TFT LCD screen (resolution 640 × 480)
• Four-wire resistive touch screen (resolution 1024 × 1024)
• Embedded real-time support for Microsoft's multi-tasking operating system WinCE.net (Chinese version) and MCGS embedded version of the configuration software (running version)
• Support for serial usb windows print and print micro printer line
• Rich communication ports: one serial port 232, a 232/485 serial port and a Ethernet port
• 24-volt DC power supply, stainless steel shell, anti-interference ability;

3, system architecture Description:

System architecture diagram:

System Architecture Description

System, there are 12 tanks, each tank an explosion of use of the magnetostrictive probe testing of a high oil level,

And tested the system and the communication interface 485 oil fieldbus digital signal integrated mission control cabinet IPC, at the same time, we combine PLC or Adam4000 module, relay output to control the start and stop pump.

Moreover, the control of the scene to monitor real-time and historical information can be passed, Industrial Ethernet fieldbus, transmission to the central control system of the Central Station.

Central station system can be used Advantech 610H IPC original platform and MCGS generic version / network version of the project.In order to reach the scene, and remote monitoring unattended.

Second, the hardware structure:

1, the basic I / O analysis:

2, software performance analysis:

Third, software Description:

1, the controller software for the preparation of:

2, integrated embedded industrial computer configuration and remote monitoring project top configuration.

Fourth, product details:

1, Option 1 (recommended):
Field System:

	Model	Description	Amount	Open Price	Price	Total
1	A control cabinet	Tpc150TC-b + Adam + electrical components	1
2	Oil level measurement system magnetostrictive		12
3	System development costs
Total:

Central control system (optional):

	Model	Description	Amount	Price
1	PC hardware and software platform	Advantech industrial computer IPC610H Chinese + MCGS-wide general-purpose industrial configuration software version	1	For PC system with specific requirements in accordance with the price Negotiable
3	Host computer systems development costs		1

2, program 2 (optional):
Field System:

	Model	Description	Amount	Open Price	Price	Total
1	A control cabinet	Tpc150TC-b + PLC + electrical components	1
2	Oil level measurement system magnetostrictive		12
3	System development costs
Total:

Central control system (optional):

	Model	Description	Amount	Price
1	PC hardware and software platform	IPC610HAdvantech industrial computer + MCGS-wide network of Chinese industrial configuration software version	1	For PC system with specific requirements in accordance with the price Negotiable
3	Host computer systems development costs		1