Yokogawa S9260 Modules S9260DE-01

Technical Dossier

Product Details And Specifications

Yokogawa S9260 Series Technical Notes

The Evolution of S9260 Architecture

The S9260 module family was introduced as the I/O expansion layer for Yokogawa's STARDOM FCN (Field Control Node) platform, which itself succeeded earlier standalone RTU architectures. The FCN controller, paired with S9260-series I/O modules, was positioned as a distributed, network-centric alternative to traditional rack-based DCS I/O subsystems.

Early S9260 deployments (circa 2004–2008) relied on a proprietary backplane bus connecting I/O modules to the FCN CPU base unit. Communication between the FCN and SCADA hosts used OPC-DA and Modbus TCP, with later firmware revisions adding OPC-UA support. The S9260 backplane supports hot-swap insertion on select module types, a feature critical for continuous-process facilities that cannot tolerate planned shutdowns for I/O maintenance.

S9260 Full Catalog & Functionalities (SKU List)

Digital Input / Output Modules

• S9260DE-01: 16-ch digital input/output module, 24 VDC, dry contact compatible, FCN backplane bus
• S9260DI-01: 16-ch dedicated digital input module, 24 VDC sink/source, status monitoring
• S9260DO-01: 16-ch dedicated digital output module, 24 VDC, transistor output, 0.5 A per channel
• S9260DI-02: 32-ch high-density digital input, 24 VDC, dual-row terminal block
• S9260DO-02: 32-ch high-density digital output, 24 VDC, relay-isolated output option

Analog Input Modules

• S9260AI-01: 8-ch analog input, 4–20 mA / 1–5 V, 16-bit resolution, HART pass-through
• S9260AI-02: 16-ch analog input, 4–20 mA, multiplexed sampling, 500 ms scan cycle
• S9260AI-03: 8-ch analog input, thermocouple / RTD universal, cold junction compensation
• S9260AI-04: 4-ch high-speed analog input, 1 ms sampling, process surge detection

Analog Output Modules

• S9260AO-01: 4-ch analog output, 4–20 mA, 12-bit resolution, loop-powered
• S9260AO-02: 8-ch analog output, 4–20 mA, isolated per channel, HART capable

Communication & Interface Modules

• S9260CM-01: RS-232C/RS-485 serial communication module, Modbus RTU master/slave
• S9260CM-02: FOUNDATION Fieldbus H1 interface module, 2-segment, 32 device capacity
• S9260CM-03: PROFIBUS DP master module, 12 Mbit/s, up to 125 slave nodes
• S9260CM-04: DeviceNet scanner module, Group 2 only server support

Power Supply & Base Modules

• S9260PS-01: 24 VDC backplane power supply module, 10 A output, redundancy-capable
• S9260BU-01: 8-slot base unit for S9260 I/O modules, DIN rail mount, FCN bus connector

Quality Control for the S9260 Range

S9260 modules present specific test challenges due to their integrated backplane bus interface and mixed-signal I/O architecture. DriveKNMS applies the following test protocol to all S9260 units prior to dispatch:

• Backplane Bus Integrity Test: Each module is seated in a live FCN base unit and polled via the internal bus to verify register read/write integrity and address resolution. Modules that fail to enumerate correctly are rejected.
• Channel-Level I/O Verification: All analog channels are tested at 0%, 25%, 50%, 75%, and 100% of rated input/output range using calibrated signal sources. Digital channels are exercised through full ON/OFF cycle sequences with load simulation.
• HART Communication Test (AI/AO modules): HART-capable modules are tested with a HART communicator to verify primary variable pass-through and device descriptor response.
• Isolation Resistance Check: Channel-to-channel and channel-to-ground isolation is measured at 500 VDC. Minimum acceptable isolation: 10 MΩ.
• Thermal Burn-In: Units are powered continuously for 48 hours at 40°C ambient prior to final inspection to screen for early-life component failures.
• Firmware Version Logging: Firmware version is recorded and included in the shipment documentation. Customers requiring a specific firmware revision for compatibility with existing FCN CPU firmware are advised to specify this at time of order.