Relay group reset command line for a python script

Software Python
1

Hi

I have 7 IP controlled relay boards that work with a python program. If a power outage happens at the computer the relays have residual port information that require a power cycle or a web login to send a reset.
Is there some sort of a reset script that I could send during boot up, or the beginning of my python program, to clear any posssible conflicts, before the main body of the program?

2

Hi,

If your relay controllers have an NCD5500 Ethernet module then you can use the inactivity timeout setting to close the client socket from the software after a defined interval. The software should send a packet to the controllers on interval to maintain the socket. This can be configured using the configuration software as explained in the NCD5500 user guide here:

Thank you,
Travis

3

Thanks for the reply Travis. I will give it a try!

4

Hi Travis
I tried different time-out settings, but all I got was a “broken pipe” error.
Is there a way to insert a code line (or more) in my code that will send a reset command to the relays?
My code has a delay to allow the OS to settle in, before the main loop. (see below)
Could I insert something after I import “ncd_industrial_relay.py”?
If so what would the command line be per relay?

( a few lines)
from kivy.uix.button import Button

import socket
import ncd_industrial_relay

import os
import time
############# set delay for os boot-up #############
time.sleep(5)

from kivy.clock import Clock

set relay on time for all relays

dreams = 300

# floors 6-43 Elevator PSE1

sockc6 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
C6Controller = ncd_industrial_relay.Relay_Controller(sockc6)
IP_ADDRESSC6 = “192.168.32.18”
PORTC6 = 15000
sockc6.connect((IP_ADDRESSC6, PORTC6))
sockc6.settimeout(.5)

Thanks for any help you could give!