The SM2 - 4 channels module of analogue inputs is destined to convert standard signals, resistance or temperature signals into numerical data accessible through the RS-485 or RS-232 port by means of the MODBUS protocol. The measurement is carried out independently on 4 channels. The programming of the modules is possible using RS-485 or RS-232 interface and LPConfig software. The SM1 module realises following functions: - mathematical operations on channels and between measuring channels, - conversion of measured or calculated quantities on the base of individual linear characteristics, - storage of maximal and minimal values for each channel, - programming of the measurement averaging time, - servicing of RS-485 and RS-232 interfaces in MODBUS protocol, both in ASCII and RTU mode. Borna Niroo Karan (Bornika) is the exclusive agent of LUMEL in the fields of consultation , sales and distribution of power industry products including Module of Input products .