Input Output Unit

The EPL-I/O-40 is an Ethernet-based remote I/O and field interface module developed for projects that need fixed field-level I/O behaviour and direct fieldbus integration. It combines local digital and analogue signal acquisition, relay and analogue actuator driving, a fixed Modbus and BACnet surface, and web/BLE commissioning and service operations in a single unit. It is positioned for repeatable I/O structures, clear channel engineering and fast head-end integration in mechanical plant panels and field boxes. KEY CAPABILITIES • 16 DI, 8 DO, 8 UI, 8 FIO channels • Pulse, totaliser and window-based counting on DI1–DI4 • Voltage, current, digital and temperature/resistance sensor modes on UI • Analogue output, digital output and digital input flexibility on FIO • Local web interface, BLE mobile commissioning and OTA updates • Fixed Modbus register layout and BACnet object surface • Fail-safe defaults and defined behaviour on communication loss TYPICAL APPLICATIONS • I/O expansion in AHU, pump, boiler, chiller and auxiliary plant panels • Adding dry contacts, analogue sensors and universal points to existing BMS systems • Driving VAV dampers, analogue valves, relays and contactor outputs from the field • Retrofit integration over a fixed Modbus/BACnet map CHANNEL FAMILIES DI — 16 channels: digital state monitoring, counter/pulse on the first four DO — 8 channels: direct or reverse digital output UI — 8 channels: analogue measurement, digital contact, NTC/PT/NI/resistance sensor input FIO — 8 channels: analogue output, digital output or digital input CHANNEL MODES DI: DIRECT, REVERSE, COUNTER DO: DIRECT, REVERSE UI: OFF, 0-10V, 2-10V, 0-20mA, 4-20mA, DI, NTC, PT1000, NI1000, RESISTOR FIO: OFF, 0-10V, 2-10V, DO, DI COMMUNICATION AND SERVICE Product class: Remote I/O / field interface module Platform: Industrial 32-bit microcontroller based local runtime Ethernet: IPv4, static IP or DHCP, mDNS Service interfaces: Web, BLE, OTA, file service User roles: admin, service Firmware reference: V2.0.1 Modbus: fixed register layout (DI 100–135, DO 300–407, UI 500–587, FIO 700–807, fault/counter 999–1058) BACnet: AI 800–807, BI 900–907, BV 11200–, AV 11300–, BV 11400–, mode/scalar 10000–11100 Note: Gateway and BACnet router functions depend on the active licence profile; the detailed register and object list is provided in a separate reference document.