✅ Basic Information

Full Name: DX522: S500, Digital I/O Module, 8DI/8Rel, 24VDC, DI: 24VDC, DO-Relay: 230VAC/3A

Installation: 35mm DIN rail

Wiring: Spring / Screw terminals (compatible with TU515/TU516)

Protection: IP20

Dimensions: 76 × 76 × 62 mm

Weight: Approximately 0.33 kg

Features: 24VDC input, relay contact output, universal for AC/DC loads, 1/3-wire wiring, LED per point

✅ Function and Positioning

Core Function:

8 channels of 24VDC digital input (DI), for collecting low-voltage switch signals (sensors, buttons)

8 channels of relay contact output (RO), capable of directly driving 230VAC/3A loads (contactors, solenoid valves, indicator lights)

Product Positioning: Hybrid I/O for low-voltage input + strong current relay output, suitable for 24VDC signals + 220VAC actuators, no intermediate relays required, saving cabinet space.

System Role: AC500 local / remote I/O expansion, integrated low-voltage signal acquisition and strong current load driving.

✅ Core Performance Parameters

Channel Configuration: 8DI (24VDC) + 8DO (Relay, 230VAC/3A)

Input Specifications: 24VDC ±10%, NPN/PNP universal, 5mA / point

Output Specifications: Relay normally open contacts, 230VAC/3A, 30VDC/3A, mechanical life ≥ 10⁶ times

Response Time: Input ≤ 10ms; Output ≤ 15ms (relay action)

Isolation: Channel-to-channel 1500VAC 1min, input/output group isolation

Status Indication: LED per point (ON/OFF)

Power Consumption: Typical 2W (24VDC power supply)

Operating Temperature: 0～+60℃ (horizontal installation); 0～+40℃ (vertical installation)

✅ Universal Adaptor Components

Terminal Unit: TU515 (spring) / TU516 (screw)

Expansion Cable: TK501 / TK502 (module cascading)

Rail: Standard 35mm DIN rail

Compatible PLC: ABB AC500 / AC500-eCo

Bus Module: CI511/CI512 (EtherCAT), CI501/CI502 (Profinet)

✅ Applicable Equipment Fields

General Machinery: Packaging machines, textile machines, injection molding machines (24VDC buttons / sensors + 220VAC contactors / solenoid valves)

Process Industry: Water treatment, pumping stations, HVAC (low-voltage level / pressure switches + 220VAC valves / fans)

Building Automation: Fire protection, security, air conditioning systems (24VDC detectors + 220VAC actuators)

Logistics Equipment: Conveyor belts, sorting machines (optical sensors + cylinders / motor control)

Non-standard Automation: Test fixtures, small assembly lines (low-voltage signal acquisition + strong current load direct drive)