General Information
Manufacturer: B&R Industrial Automation (ABB Group)

Series: X20 System (Modular I/O Platform)

Model: X20SO4120

Type: 16-Channel Digital Output Module

Electrical Parameters
Output Specifications
Channels: 16 (individually isolated)

Output Type: Sourcing (PNP), 24V DC

Load Voltage Range: 12–30V DC

Max. Output Current per Channel: 0.5A

Total Current per Module: 4A (all channels combined)

Short-Circuit Protection: Yes (auto-reset or latch mode configurable)

Switching Frequency: Up to 100Hz (resistive load)

On-State Voltage Drop: < 1V @ 0.5A

Input/Control Signals
Internal Logic Supply: 5V DC (from X20 backplane)

External Supply (Field Side): 24V DC (19.2–30V DC range)

Isolation: 500V (between field and system side)

Mechanical & Environmental
Dimensions (W×H×D): 30mm × 100mm × 70mm (standard X20 width)

Mounting: DIN rail (EN 60715)

Weight: ~150g

Protection Class: IP20 (for control cabinet use)

Operating Temperature: 0°C to +60°C (with derating above 40°C)

Storage Temperature: -40°C to +85°C

Humidity: 5–95% (non-condensing)

Vibration Resistance: 5g @ 10–150Hz (IEC 60068-2-6)

Shock Resistance: 15g, 11ms (IEC 60068-2-27)

Diagnostics & Indicators
Per-Channel Status LEDs:

Green (ON): Output active

Red (FAULT): Short-circuit/overload

Module-Wide LEDs:

Power (green): 24V field supply OK

Communication (yellow/green): Bus activity

Configuration & Compatibility
Software Configuration: B&R Automation Studio

Hot-Swappable: Yes (module replacement without shutdown)

Compatible With:

All X20 bus controllers (e.g., X20BC0083, X20BC0043-C01)

B&R PLCs & Automation PCs

Certifications:

CE, UL, RoHS compliant

EMC: EN 61000-6-2, EN 61000-6-4

Typical Applications
Machine control (relays, solenoids, lamps, small motors)

Packaging & material handling systems

Factory automation (conveyors, sorting systems)

Process control (valves, actuators)

Wiring & Connections
Terminal Type: Removable screw terminal block

Wiring Diagram:

Channels 1–16: Output (+)

Common 0V: Shared return (field supply)

Notes
Derating may apply at high ambient temperatures (>40°C).

For inductive loads, use external flyback diodes.

Verify max. load current per channel to avoid overheating.