Ball valve connection/ operation with SCADA.

[Bharti__]

Hello!

As people are heading towards Industry 4.0 concept, so for that most of need is to connect valves in a industry with SCADA system.

I am not that much good in electicals & electronics. I am wondering what are the possible ways to connect a ball valve with SCADA systems.

According to my little beat surffing on internet, some people use PLC with pneumatic actuators, Some companies give options with electric actuators etc.

I want an exact picture about how to connect valves with SCADA systems? what are the possible ways to connect valve with SCADA system? and what are the additional accessories required with pneumatic & eletrical actuators?



Leading valves towards Industry 4.0

 

[mk3223]

Bharti, it helps if you can be more clear for what's the ball valve connection to do with SCADA system, such as function of the joint, specific application, etc.

For the piping or tubing systems, the typical connection of the valve can be welding, threaded, or flanged. I wonder what the special is in the Industry 4.0 application.

 

[LittleInch]

SCADA is just a form of control system, more commonly now people use a DCS, but either way the electronic part of the system needs to know what the mechanical part is doing.

So normally you have two limit switches on the valves - Open and close. The state of the valve is then either open, close or in between (in transit).

The other aspect is then control of the position of the valve so there is usually a signal to close the valve and signal to open the valve.

Sometimes this is a signal into the valve controller (electric actuator), sometimes it's a direct connection to a solenoid (hydraulic or pneumatic).

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Bharti__]

@littleinch

Thank you!

Sounds good for me, but one of my concern is do additional PLC required to connect valves with SCADA or i can connect directly solenoid valves to the feedback system?

From my point of view, it may require (not sure) to process and identify the signal from limit switch and control that valve accordingly by giving signal to solenoid valve using PLC may required. but wondering if any alternative ways are there or not? and which are best suitable?

@mk3223

valve application is in filling line of water tank so once water level is acheived in the tank it will send closse signal to valve and once water level goes down valve will be opened, all this data is needed to idenitfy like valve position and tank level etc. may manual signal to vlave using SCADA also required! and as tank is far away from plant i want to connect it with SCADA system.



Lead valves towards Industry 4.0

 

[jari001]

The SCADA system is not usually used for directly handling I/O. If you have an automated valve that you want to integrate into the SCADA, that valve has to be part of a DCS or PLC system that the SCADA can monitor and report on.