FX-40-Programing question

[freddy-b]

How do you duplicate jci PMI ,latch/unlatch logic on BI's with jace logic?

[codewriter]

you lost me

[freddy-b]

Code, a little Site history. removed NCM, added FX-40. site has JCI/n2open devices.
Is it possible to duplicate the latching feature of PMI with AX programing. example would be a binary input from aux contacts on a auto resetting low limit on a air handler. I want the input to latch on trip until a operator has seen problem, leaving ahu in failsafe position even if low-limit has reset itself. I need the ability to unlatch, thus reseting low-limit from workstation. I dont want these units on/off constantly in freeze condition.

how can I add functions("latching feature") to the action tab for a booleen point/binary input? thanks,
Freddy

[mutombopr]

You could use a basic latch with ANDs or ORs.

Look in google for and SR latch. It should be basically the same thing.

[codewriter]

Have you looked at the Latch Function block yet?

[freddy-b]

Yes, I have checked out the latch function block, problem lies with the BI's. What values (pins) are commandable, have not had any luck at all.
Thanks

[codewriter]

pins?

Wont a boolean writable work for you?

I must not fully understand what your saying