DCS control logic
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There is now a cut-off valve. Manual control has already been implemented on the DCS, and now it is planned to install an additional on-site control button that allows for control at the site. However, the button in the on-site control box cannot maintain its state – it turns into an open circuit when activated and a closed circuit when deactivated. I intend to use function blocks to achieve this. Could anyone with expertise help me? I’m using the JX-300 central control system along with Hilscher 6.5
The valve has no self-protection mechanism; a switch is required, not a button
Your button signal needs to go into the DCS, right? It’s okay even if it’s not maintained; use an RS flip-flop to lock it in the DCS
The valve can be controlled by operating the air supply switch.
Just change the switch – remote operation, local start, local stop
I regret it! ! If an RS flip-flop is added for on-site control (which can also be achieved with a DCS), it’s pointless. Does that mean wiring needs to be changed for the two circuits?