class Relay

The relay object controls the state of the relays. The relays are bistable making them remember their state when power is removed.

Constructor

class omc048.relay(id: integer)

Create an relay object associated with the relay 1 or 2.

id is the relay number, 1 or 2.

relay.set(state: integer): Set the relay to the specified position, 1 for on and 0 for off.

relay.on(): Switch the relay to the on position (normally open). Connecting pin 11-12 for relay 1 and pin 17-18 for relay 2.

relay.off(): Switch the relay to the off position (normally closed). Connecting pin 12-13 for relay 1 and pin 18-19 for relay 2.

relay.toggle(): Switch the relay from the current position to the other position, switching between on() and off().

The following code shows an example with the relay switching between positions with a 5 second interval.

import omc048
import time

relay_1 = omc048.relay(1)

while True:
    relay_1.toggle()
    time.sleep(5)