Product datasheet Unipi Extension xS52 is an extension module communicating via the RS485 serial interface with Modbus RTU protocol. The module is a simple and inexpensive method of extending your project by additional inputs & outputs. The xS52 features a set of analog inputs combined with a set of digital and relay I/Os. This makes it ideal for more complex projects involving the measurement of analogue components. INPUTS & OUTPUTS OTHER FEATURES ■ Special functions o Direct Switch - automatic response to input value change o MasterWatchdog - switches outputs to a safe mode if communication with the PLC is interrupted o Configurable user LEDs ■ Durable aluminium chassis (IP20)

Digital inputs Input terminal_ Common ground LED indication Galvanic isolation (pulse) Measuring range Please note: The compensation of the lead resistance and the conversion to temperature according to the selected sensor is up to the user application. Measuring range Relay outputs Installation and operating conditions No. of inputs x group Output terminal Common terminal Load protection Short circuit pro' Overvoltage protection LED indication_ Galvanic isolation (pulse) 2.5 kVAC between RO and RO 4 kVAC between RO and all other circuits Operating conditions Power supply Rated voltage - SELV...

Unipi Extension xS52 Temperature dependence of resistance measurement When measuring resistance, it is necessary to include the temperaturedependent measurement error of the device, especially at the lower limit of the measuring range. Directive compliance LVD: EMC: RoHS: WEEE: The graph represents the dependence of the measured value error range compared to the measured value at 20 °C for a set of 16 channels with 3 sigma coverage (99.7 % in-band measurement), various production batches.  Measurement mode: 2 kΩ  Measured resistance: 330 Ω Ambient temperature [°C] Measurement tolerance for...