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The Yokogawa ADV561‑P50 S2 is a 64-channel digital output module tailored for industrial automation and process control systems. It provides isolated 24 V DC transistor (current-sink) outputs, capable of driving solenoids, relays, indicators, alarms, and other discrete field devices.
The suffix “P50” indicates that this module supports pulse-width modulation and time-proportional output, but it does not include per-channel status LEDs (unlike “P00” versions). The “S2” designates that the module uses a screw-terminal (S2) interface for output wiring, facilitating secure, maintainable connections in control cabinets or field racks.
The ADV561‑P50 S2 is ideal for high‑channel applications that require precise timing control but do not require LED status feedback per channel. It fits neatly into modular I/O racks or distributed control systems (DCS), offering high-density output capacity with timing flexibility and robustness.
| Parameter | Specification |
|---|---|
| Number of Output Channels | 64 |
| Output Type | 24 V DC transistor, current-sink, isolated |
| Rated Voltage | 24 V DC |
| Supply Voltage Range | ~20.4 – 26.4 V DC |
| Maximum Load Current per Channel | 100 mA |
| Leakage Current (OFF) | ≤ 0.1 mA per channel |
| ON-state Voltage Drop | ≤ ~2 V DC |
| Output Response Time | ≤ 3 ms (status mode), ≤ 10 ms (pulse-width / time-proportional) |
| Pulse-Width / Time-Proportional Range | 8 ms – 7200 s |
| Pulse-Width Resolution | 8 ms increments |
| Withstanding Voltage – Output → System | ~2 kV AC (1 minute) |
| Withstanding Voltage – Between Commons | ~500 V AC between 16‑channel commons (1 minute) |
| Isolation | Full electrical isolation between output commons and system |
| Connection Interface | Screw-terminal block (S2 type) for each output group |
| Weight | Approx. 0.30 kg |
| Dimensions | Approx. 144 mm (W) × 100 mm (H) × 30 mm (D) |
| Redundancy | Supports dual‑redundancy configurations |
| Operating Environment | Industrial control racks, modular systems |
Process Automation: For valve control sequences, pump actuation, timed actuators and repetitive cycle control in chemical, petrochemical or manufacturing plants.
Utilities / Power Generation: Used to drive contactors, relays, alarm panels, or other discrete output devices in power plants.
Water & Wastewater Treatment: Control of gate valves, blowers, pumps, mixers with timed or duty‑cycle output operations.
Oil & Gas Safety Systems: For emergency shutdown (ESD) control, interlock outputs, and timed valve command sequences.
Factory Automation: In robotic or machine control panels where timing (pulse) of outputs is needed but LED status is not required per channel.
Large-scale I/O Racks: Suitable for distributed control systems or modular racks that require high output density and flexible timing control.
High Output Density: 64 channels in one module reduces the number of modules needed and saves rack space.
Precise Timing Control: Supports pulse-width and time-proportional output for accurate duty-cycle or timed actuation.
Robust Connection: Screw-terminal (S2) interface ensures durable, maintainable field wiring.
Strong Electrical Isolation: Prevents interference and safeguards the control system under noisy or high-voltage field conditions.
Scalable & Redundant: Compatible with dual-redundant architectures for high availability.
Compact & Lightweight: At ~0.30 kg, it minimizes mechanical and spatial load.
Cost-Efficient: Without status LEDs, it offers timing capabilities at lower overall cost or complexity.
Modular Integration: Designed for plug-in into modular I/O racks and distributed control systems, enabling easy expansion or replacement.
Brand: Yokogawa
Series: ADV Series Digital I/O Modules
Sub-Series: ADV561 – 64-channel digital output modules with timing functions (pulse-width, time-proportional)
Here are five models in the same series or with closely related functionality (with bold model names):
| Model | Channels | Key Features | Notes |
|---|---|---|---|
| ADV561‑P50 S2 | 64 | Pulse-width, time-proportional, screw-terminal | The model in question |
| ADV561‑P00 | 64 | Pulse-width, time-proportional, status output | Has per-channel status feedback |
| ADV561‑P01 | 64 | High-temperature tolerance + timing | Designed for harsh environments |
| ADV561‑P10 S2 | 64 | Pulse-width, time-proportional, screw-terminal | Similar to P50 but different suffix |
| ADV551‑P50 | 32 | Timing control (pulse / proportion) | Lower channel count, same timing flexibility |
Here are five other popular modules from the same brand:
| Model | Type | Channels | Application / Role |
|---|---|---|---|
| ADV151‑P60 | Digital Input | 32 | Discrete digital input signals for control systems |
| ADV161‑P00 | Digital Input | 64 | High-density digital input module |
| ADV559‑P00 | Digital Output | 32 | 32-channel output module for smaller I/O systems |
| ADV569‑P00 | Digital Output | 64 | Alternative 64-channel output module |
| ADV869‑P01 | Mixed I/O | 32 in / 32 out | Balanced input/output module for flexible installations |
Q1: How many discrete outputs does the ADV561‑P50 S2 provide?
A1: It provides 64 output channels.
Q2: What output control modes are supported?
A2: Pulse-width modulation and time-proportional control.
Q3: What does the “S2” suffix mean?
A3: It indicates the use of a screw-terminal (S2) interface for field wiring.
Q4: What is the maximum current each channel can drive?
A4: Each channel can handle up to 100 mA.
Q5: What is the response time for the outputs?
A5: Up to 3 ms for simple status switching; 10 ms when using timed output modes.
Q6: How well isolated are the outputs?
A6: The module supports isolation of approximately 2 kV AC from outputs to system, and 500 V AC between channel common groups.
Q7: What are the physical size and weight of the module?
A7: Around 144 mm × 100 mm × 30 mm, and weighing approximately 0.30 kg.
Q8: Can this module be used in redundant control systems?
A8: Yes; it supports dual-redundant configurations for high-availability setups.
Q9: In what type of applications is this module particularly valuable?
A9: It is ideal in applications requiring precise timing of many outputs (e.g., valve sequencing, duty-cycle control) without the need for per-channel status LEDs.
Q10: Is the module suitable for field wiring and maintenance?
A10: Yes; its screw-terminal interface allows for secure, durable, and maintainable connections in industrial cabinets or racks.
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