SfAR-S-6TI User Manual
www.ismacontrolli.com
DMP272en | 3rd Issue rev. 2 | 05/2022
page 6 of 26
3 Module Features
3.1 Purpose and Description of the Module
The SFAR-S-6TI module allows measuring temperature with popular sensors (PT100,
PT500, PT1000, NI100, KTY81-110) and thermocouples (type J, K, T, N, S, R, B). In addition,
it is possible to measure voltages in the range from 256 mV (10
μV
resolution) to 2048 mV
(100
μV
resolution) as well as to measure resistance to 8
kΩ.
The device has a set of six inputs for the temperature measurement. 2- or 3-wire
measurement of temperature is feasible with PT100, NI100, PT500, and PT1000 sensors ,
and 2-wire measurement is feasible with thermocouples and other sensors. In addition,
the module is equipped with 2 configurable digital outputs.
Values are read via RS485 (Modbus), so the module can be easily integrated with popular
PLCs, HMI, or PC equipped with the appropriate adapter.
The module is connected to the RS485 bus with a twisted-pair wire. Communication is via
Modbus RTU or Modbus ASCII. The use of 32-bit ARM core processor provides fast
processing and quick communication. The baud rate is configurable from 2400 to
115200.
The module is designed for mounting on a DIN rail in accordance with
DIN EN 5002.
The module is equipped with a set of LEDs to indicate the status of inputs and outputs,
which is useful for diagnostic purposes and helping to find errors. Module configuration is
done via USB by using a dedicated computer program.It also allows for changing the
parameters using the Modbus protocol or set the Modbus address using the DIP
switches under the front panel.
3.2 Technical Specification
Power Supply
Voltage
10-38 V DC; 10-28 V AC
Power consumption (with active
Modbus transmission high state on all
inputs)
2,4 W at 24 V DC
3 V.A at 24 V AC
Inputs
No. of inputs
6
PT100 operation range
-200°C to +850°C
PT500 operation range
-200°C to +850°C
PT1000 operation range
-200°C to +850°C
NI100 operation range
-60°C to +180°C
KTY81-110 operation range
-55°C to +150°C
J thermocouple operation range
-200°C to +1200°C
K thermocouple operation range
-200°C to +1300°C
