Description

4-CHANNELS MODULE OF ANALOGUE INPUTS

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 SM2 4-channel module of analog 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 four, galvanically insulated between them channels. RS-485 and RS-232 output ports are galvanically insulated from input signals and the supply. The module programming is possible by means of the RS-485 or RS-232 port. In the set of SM2 module there is a connecting cable, to connect with the PC computer (RS-232).

The SM2 module realises following functions:

• mathematical operations on channels and between measuring channels,

• conversion of measured or calculated quantities basing on the individual linear characteristic,

• storage of maximal and minimal values for each channel,

• programmable digital filter for measurement, independently for each channel,

• handling of RS-485 and RS-232 interfaces in MODBUS protocol, in RTU mode,

• change of the OC type output state basing on set alarm values.