hal interface value logic inversion

Because my limit signal switch is in NPN mode, it is always in a high level state, so I want to reverse the signal acquisition value in the hal file and then match it to joint.0.pos-lim-sw-in

I don't know if hal provides such a method, or how I should invert the signal in hal.

E.g:
net Zpos_limit lcec.0.2.DIin-16 => joint.2.pos-lim-sw-in
I want to reverse the value of lcec.0.2.DIin-16 and then =>joint.2.pos-li-sw-in

Who can help me solve this problem, thank you all

You can use the "not" component to invert a bit type hal signal

loadrt not count=3
addf not.0 servo-thread
addf not.1 servo-thread
addf not.2 servo-thread

net signal some_pin_you_need_inverted not.0.in
net not_signal un-inverted_pin not.0.out