D1-15

MODBus module with 9 input channels, 6 V/mA and 3 PT100

The D1 product family I/O modules enable an easy and economical setup of an accurate and reliable data acquisition system. The communication between I/O modules and the supervisory PC is based on a RS422/RS485 serial link with a Modbus (ASCII or RTU) protocol; a complete line of serial converters and repeaters ( C1-line ) with triple optical isolation guarantees the safety of data transmission even when there is strong interference and noise.

The D1-15 module provides 9 input channels for reading of 6 analog signals (0-10 V or 0/4-20 mA) and 3 temperatures through Pt100 sensors (3 wire), with automatic compensation of the cable resistance; the ramp conversion circuit ensures a reliable reading with a 15 bit resolution and a 0.05 % full scale accuracy; the module does not require calibration and mantains its characteristics of accuracy; an internal watch-dog circuit ensures a non-stop operation; interface type (RS422 or RS485), communication protocol (Modbus ASCII or RTU) and address (from 1 to 31) can be set through microswitches; the module is suited for mounting on a DIN rail.

General specifications
Power supply: • From 18 to 36VDC, 70mA@ 24VDC
Power supply protections: • Against surge and polarity inversion
Operating environment: • Temperature: from 0 to +70°C. Relative humidity: from 25 to 85% (non condensing)
Operating atmosphere: • Without corrosive gas
Storage temperature: • From -20 to +80°C (without ice)
Electromagnetic compatibility: • Radio frequency emissions: EN55011 Group 1 Class A
• Conducted emissions: EN55011 Group 1 Class A
• Radio frequency immunity: ENV50140 10V/m AM from 80 to 1000MHz
• Conducted immunity: ENV50141 10V/m AM from 0,15 to 80MHz
IP grade: • Connectors: IP20, enclosure: IP20
Signalling LED's: • Power on, self-test, serial Tx/Rx
Mounting: • DIN EN50022 rail
Dimensions: • WxHxD  150x110x60mm
Weight • 350g
Analog input specifications
Sensor type: • 3 PT100 sensors, IEC751, 3 wires
• 6 Voltage sensors (0 to 10V) or current sensors (0-20mA), individually selectable by jumpers
Power supply for external sensors • 24VDC, maximum current 100mA
Analog/Digital conversion: • Ramp, 15bit resolution
Current shunt resistor: • 249 Ohm
Maximum input ratings: • 310 Ohm (PT100 inputs), 15V (voltage inputs), 45mA (current inputs)
Overall accuracy: • ± 0.05% full scale
Acquisition rate: • 1s (all nine channels)
Maximum line resistance: • 20 Ohm
Full Scale temperature range • From -199,9 to 500°C
Communication Interface specifications
Communication interface: • EIA RS422 or RS485 (selectable by jumper)
Communication speed: • 9600 or 19200 baud (selectable by dip-switches)
Communication protocol: • MODBus ASCII or MODBus RTU (selectable by dip-switches)
Device address: • From 1 to 31 (selectable by dip-switches)
422/485 line protection: • Against surge
Watch-Dog: • Hardware