At least one exemplary embodiment of the present invention includes a
method comprising receiving a connection request at a modem integral to a
programmable logic controller, and allowing access to the programmable
logic controller via the modem. At least one exemplary embodiment of the
present invention includes a method comprising establishing a connection
between a calling device and a modem integral to a programmable logic
controller, and allowing the calling device access to the programmable
logic controller via the modem. It is emphasized that this abstract is
provided to comply with the rules requiring an abstract that will allow a
searcher or other reader to quickly ascertain the subject matter of the
technical disclosure. This abstract is submitted with the understanding
that it will not be used to interpret or limit the scope or meaning of
the claims. 37 CFR 1.72(b).