Signal Edges

Provider specific ↗

Provider-specific feature.

All providers are free to implement it with custom behavior and name or simply avoid it.

To access this feature, you need to use the internal field of a Provider instance.

Both Rising & Falling edges are supported.

Rising edge

import {Provider} from "#source";
import {Ob, Fb, InstanceDb} from "#pou";
import {Bool} from "#primitives";
import {Instance} from "#complex";
import {Compare, Call} from "#basics";

const MyFb = new Fb({
    interface: {
        static: {
            r_trig_instance: new Instance(Provider.internal.R_TRIG, {}),
            clk: new Bool(),
            output: new Bool(),
        }
    },
    body() {
        return [
            new Call(this.static.r_trig_instance, {
                input: {
                    CLK: this.static.clk
                },
                output: {
                    Q: this.static.output
                }
            })
        ]
    }
})

Falling edge

import {Provider} from "#source";
import {Ob, Fb, InstanceDb} from "#pou";
import {Bool} from "#primitives";
import {Instance} from "#complex";
import {Compare, Call} from "#basics";

const MyFb = new Fb({
    interface: {
        static: {
            f_trig_instance: new Instance(Provider.internal.F_TRIG, {}),
            clk: new Bool(),
            output: new Bool(),
        }
    },
    body() {
        return [
            new Call(this.static.f_trig_instance, {
                input: {
                    CLK: this.static.clk
                },
                output: {
                    Q: this.static.output
                }
            })
        ]
    }
})