Abstract: Systems, devices, and methods are provided for equipment monitoring comprising monitoring signals created by a PLC and sensors associated with a piece of equipment using a monitoring device comprising hardware communicatively coupled to a PLC and operative to transmit information over a communications network, transmitting signals from the monitoring device over the communications network to one or more databases stored on a server system comprising hardware and software communicatively coupled to the network, analyzing signals created by the PLC to determine the nature of the signals and using the analyzed signals to send alerts to one or more mobile service devices operated by technicians when emergency maintenance is required for the piece of equipment.