The Ethernet system for length measurement MSX-E3701-DIO has 16 inputs for inductive transducers (Half-Bridge, LVDT), 1 digital trigger input, 24 V, and 32 digital I/O, 24 V. The system was developped for length measurement and the connection to a PLC in the harsh industrial environment. It has a robust normed metal housing with the degree of protection IP 65 and an extended temperature range from -40°C to +85°C. The ARM®9 32-bit processor allows the calculation of the acquired values. The Development Mode allows to customise applications individually. Through synchro connection, several MSX-E systems can be daisy-chained and synchronised with one another in the µs range.