Using an Ethernet based system bus and an integrated PLC, the modular JUMO mTRON T measuring, control and automation system includes a CPU that provides a process image for up to 30 I/O modules. The CPU is equipped with higher ranking communication interfaces including a web server. For individual control applications, the system has a PLC (CoDeSys V3), program transmitter and limit value monitoring functions, as well as math and logic modules. Available I/O modules include a multi-channel controller module, 4-8 channel analog input modules, a relay module in 4-channel version, as well as the freely configurable 12-channel digital I/O module. The 4-channel analog input module includes four electrically isolated universal analog inputs for thermocouples, RTD temperature probes and standard signals. This allows precise recording and digitization of a variety of process variables with the same hardware, project planning, material planning and stock keeping, with the respective cost benefits involved. Each multi-channel controller module supports up to four stand-alone PID control circuits with fast cycle time and proven control algorithm without loading the CPU. The system allows the simultaneous operation of up to 120 control circuits, making it possible to meet the requirements of complex control processes. The inputs and outputs of each controller module can be individually extended and adapted using optional slots. In addition to visualization, the multi-functional panel allows convenient operation of the controller and program transmitter. It also permits user-dependent access to parameter and configuration data of the overall system. As a special feature, a full paperless recorder including web server is provided for performing the recording functions. Proven PC programs are available for read-out and evaluation of the historic data. Screen masks, predefined as standard, substantially reduce start-up times. The configuration of the hardware and software, as well as the configuration of the measured value recording and control tasks are performed with the setup program. Using the editors of CoDeSys as per IEC 61131-3, users can create their own highly efficient automation solutions. The entire application is recorded in a project file, considerably simplifying project administration and version management. Due to its high flexibility and user friendly structure, mTRON T, as a measuring, control or automation system, can be easily and conveniently adapted to different applications so that it can be used in a large variety of industries.