def error_list():
""" Get the number of errors for each input and output module. """
return MasterCommandSpec("el", [Field.padding(13)], [
Field("errors", ErrorListFieldType()),
Field.crc(),
Field.lit("\r\n")
])
def output_list():
""" The message sent by the master whenever the outputs change. """
return MasterCommandSpec("OL",
[],
[Field("outputs", OutputFieldType()), Field.lit("\r\n")])
