1. A system for monitoring a process, comprising: a communication network; a monitoring application located in a first device communicatively connected to the communication network; and a process control device communicatively connected to the communication network; wherein said process control device includes a processing unit that operates to obtain a series of values for a monitored parameter, compare a new value of the monitored parameter to a previous value of the monitored parameter for which a monitored signal was previously transmitted to the monitoring application to create a difference signal, compare the difference signal to a difference threshold and transmit a further monitored signal indicative of the new value of the monitored parameter to the monitoring application via the communication network when the difference signal exceeds the difference threshold.