Product Core Brief
- Model: FX-316
- Brand: EMERSON
- Series: Industrial Automation / Motion Control
- Core Function: Provides high-precision positioning, speed/torque control, and seamless process data acquisition.
- Product Type: Positioning Servo Drive / Multi-function Industrial Module
- Key Specs: 24V DC Input | 0-10V DC Output | Modbus RTU Protocol | -40°C to 85°C Operating Temp
- Condition: New Original (New Surplus)

EMERSON FX-316
Product Introduction
EMERSON FX-316 is a highly versatile, high-performance industrial module designed for demanding automation environments. While frequently classified as a positioning servo drive for precise motion control, it also functions as a multi-purpose control module for process monitoring and data acquisition.
Engineered for compact integration, this module features a small footprint and supports standard DIN-rail mounting. It communicates seamlessly via the Modbus RTU protocol, making it highly adaptable for integration into existing manufacturing, chemical, power, and water treatment systems. Its robust design ensures reliable performance across an exceptionally wide temperature range.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Positioning Servo Drive / Control Module |
| Input Voltage | 24V DC |
| Output Voltage | 0 ~ 10V DC |
| Communication Protocol | Modbus RTU |
| Operating Temperature | -40 °C to +85 °C |
| Installation Method | DIN Rail Mount |
| Control Modes | Position, Speed, Torque Control |
| Key Features | High Precision, Auto-tuning, Overload Protection |
| Compliance | Industrial Automation Standards |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.

EMERSON FX-316
Replacement Pitfall Guide
❗ Product Variant Confusion: The FX-316 designation is used for multiple product types (e.g., Servo Drives, Fieldbus Modules, Analog I/O). Always verify the exact suffix (e.g., FX-316-960132-01) and primary function before replacing a unit.
❗ Motor Matching: If utilizing this unit as a servo drive, ensure the connected servo motor’s rated current and voltage strictly match the drive’s specifications to prevent hardware damage.
❗ Communication Configuration: The module relies on Modbus RTU. Verify that the baud rate, parity, and register mapping in your PLC/DCS exactly match the FX-316’s software configuration.
❗ Power Supply Stability: This module requires a stable 24V DC supply. Voltage fluctuations or electromagnetic interference can disrupt positioning accuracy or trigger overload protection.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- FX-316 → FX-316-960132-01 : Direct — Specific Servo Drive Variant
- FX-316 → Modbus Master (PLC/DCS) : Companion — Requires Modbus RTU Communication Interface
- FX-316 → Servo Motor : Companion — Must match electrical ratings and control modes
- Scan Cycle: High-speed processing for precise motion control
- Comms Throughput: Modbus RTU (Serial)
Need help verifying your specific FX-316 variant or configuring the Modbus RTU parameters for your motion control application? I can confirm the exact wiring and tuning requirements for your system.






