Abstract: A communication module (100) for monitoring a machine (200) includes a serial interface (110) connectable to a serial interface of the machine (200); a telecommunications interface (120) connectable to a telecommunications network; and a control unit (130) configured to transmit data received via the serial interface (110) to a monitoring server (300) via the telecommunications interface (120). The module (100) provides network connectivity to industrial machinery, thereby providing a means of remotely monitoring such machines, including legacy machines which may not otherwise support network connectivity.