1  """
 2  	Example: Base Disable
 3  
 4  	This example shows how use the disable method in a try/except clause to turn
 5  	off output modules in the case of an unexpected error.
 6  
 7  	Discrete ouputs are any output that is only ON or OFF such as a relay.
 8  	This example works with all P1000 Series:
 9  	 - Discrete ouput modules such as P1-08TRS, P1-08TD1, P1-16TR, etc.
10  	 - Discrete combo modules such as P1-15CDD1, P1-15CDD2, P1-16CDR, etc.
11  
12  	This example will toggle channel 2 of slot 1 on and off 4 times and then trigger
13  	an error at which point it will turn off the output.
14  	 _____  _____
15  	|  P  ||  S  |
16  	|  1  ||  L  |
17  	|  A  ||  O  |
18  	|  M  ||  T  |
19  	|  -  ||     |
20  	|  2  ||  0  |
21  	|  0  ||  1  |
22  	|  0  ||     |
23  	 ¯¯¯¯¯  ¯¯¯¯¯
24  	Written by FACTS Engineering
25  	Copyright (c) 2023 FACTS Engineering, LLC
26  	Licensed under the MIT license.
27  """
28  
29  import time
30  import P1AM
31  import traceback
32  
33  def main(base):
34      
35      output = base[1][2] # set output object to slot 1 channel 2
36      for i in range(4):	# blink 4 times
37          output.value = 0 # off
38          time.sleep(1)
39          output.value = 1 # on
40          time.sleep(1)
41  
42      import this_module_doesnt_exist # force an import error error
43  
44  
45  try:
46      base = P1AM.Base() # init base object
47      main(base) # call our main function
48  except Exception as e: # if our main function throws an exception
49      traceback.print_exception(e) # print out the error
50      base.deinit() # disable the base and turn off outputs
51  
52  while True:
53      pass