2 Duty and 2 stand by Pump Logic in RS logix 5000

[afeefabdussamed]

Dear all

Can any one share me the logic for 2 Pump Duty and 2 Pump Standby as per Running hours selection in RS Logix 5000 Rev 20?

 

[the_msp]

Go to the downloads section of this website (links at top of the forum) and there will be some info to get you going.

If you want a turn-key AOI/routine, please supply your purchase order number.

 

[janner_10]

Dear all

Can any one share me the logic for 2 Pump Duty and 2 Pump Standby as per Running hours selection in RS Logix 5000 Rev 20?

Run 2 until they break, then run the other 2 until they break, repair the 2 that aren't running.

 

[parky]

This is a simple no-frills code I got my apprentice to do a few years ago, it was a retrofit of an old relay-based system and worked well, the apprentice was given the task to build a new panel insert with a small plc & HMI the criteria was to have a selection on the HMI with 4-way selection for OFF. Duty 1&2 Duty 3&4 and duty 1 2 3 4. with hours run counters on HMI for the pumps only some of the logic is shown but it is obvious, this plc was a small Mitsubishi so the counter was derived from a simple 1-minute timer adding counts to minutes & hours and simple logic for pump runs. Note in this case timers were used to cascade the start of the pumps but should give you some ideas.