Compact IO Module DI-16-C

• Screwless installation with click-on DIN-rail communication bus and power connectors
• Push-in spring connectors for cables
• Individually detachable terminal blocks per channel

The 16-channel digital input module is used to read and detect digital signals for indication, alarm, or impulse measurement purposes. Each channel can be configured individually and has a green and red LED to indicate its current status. Connect the module to a serial Modbus master controller to receive reliable, fast indications from your field equipment.

Below is a presentation of the Fidelix FdxCompact DI-16-C 16-Channel Digital Input module. How to connect, configure, use, communicate with, and interpret values and signals from the module.

T Bus connecter (Terminal C) required for MODBUS + and – connection, along with other supply voltage 24VDC, and consumes 15mA.
If more than 1 module is being installed, you only need one terminal connector. If connecting, say, 10 of the same or different modules, only one T Bus connector is required.

Communication: Modbus RTU (RS485) at speeds up to 57600 bps. Use no parity, 8 data bits and 1 stop bit. The module will automatically detect the bus communication speed (9600, 19200, 38400, or 57600 bps).
Modbus address: The module’s address can be set to 1-63 by changing the position of dip-switches 1-6. Each dip switch represents a binary value, as indicated on the module and the datasheet.
Modbus loop termination: On the last module, the Modbus loop must be closed by connecting a 120 Ω resistor between the A and B sides of the RS-485 loop.

DI-16-C Fidelix Digital input module

– 16 digital inputs
– Indication, alarm, and heart rate recording
– Galvanically isolated channels
– Multicoloured LED indications
– Pluggable connection terminals
– RS-485 communication with Modbus protocol
– Mounting on DIN rail
The DI-16-C is used to read digital signals for indications, alarms or heart rate measurements.
Each channel can be configured individually and has a green and a red LED to show the current status.
Quick and easy installation, with power supply and communication integrated into the DIN rail.

Watch the YouTube video: DI-16-C YouTube

Technical information
Supply voltage: 24 VDC (+/- 10%)
Current consumption: 5 mA + (16×2 mA)
Ambient temperature operation: 0 to +40ºC Ambient humidity operation: Max 95%RH, non-condensing
Module size: 134 mm x 78 mm x 19 mm
Module weight: 90 g
Protection class: IP20
Communication speed: 9600 bps, 19200 bps, 38400 bps or 57600 bps
Address range: 1 – 63
Communication protocol: Modbus RTU
Supply scan voltage DI: 20 – 24 VDC
Scan current: 2 mA at 24 VDC / closed circuit
Allowed resistance open contact: 50 kΩ – ∞ (parallel) at 24 VDC scan voltage
Permitted minimum pulse length: Programmable, 5 ms – 1275 ms