YOKOGAWA AF410/T Teach Pendant – FA-M3 STARDOM

YOKOGAWA AF410/T Handheld Teach Pendant Terminal – On-Site Programming Interface for FA-M3 and STARDOM Control Architectures

The YOKOGAWA AF410/T is a dedicated handheld teach pendant operator terminal engineered for direct field-level interaction with YOKOGAWA FA-M3 F3SP-series CPU modules and STARDOM FCN/FCJ remote controllers. Unlike generic HMI panels, the AF410/T communicates over a proprietary RS-232C teach pendant bus, granting full read/write access to ladder logic programs, I/O force functions, motion axis parameters, and real-time register monitoring — capabilities that are architecturally restricted to native YOKOGAWA peripherals. In process and discrete manufacturing environments where downtime costs are measured in minutes, the AF410/T provides maintenance engineers with a self-contained, portable diagnostic and programming instrument that eliminates the need to carry a laptop to the machine floor.

The unit is housed in an IP54-rated ABS enclosure with a membrane keypad rated for repeated industrial use. An integrated coiled cable — extending to approximately 1.5 m under tension — connects to the dedicated teach pendant port on the CPU module, maintaining a secure mechanical and electrical link during motion commissioning and parameter tuning operations. The backlit LCD panel delivers sufficient contrast for use in both dimly lit control cabinets and high-ambient-light factory floors. Power is drawn entirely from the host controller interface, removing the need for batteries or an external supply.

From a control-loop perspective, the AF410/T occupies the human-machine boundary of the FA-M3 architecture. It does not participate in the scan cycle or the backplane token-ring bus; instead, it operates as a passive peripheral that the CPU services during idle scan time via interrupt-driven serial polling. This design ensures that pendant activity — including program edits and I/O forcing — does not introduce deterministic jitter into the control loop, a critical requirement in servo-synchronized and high-speed packaging applications.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The AF410/T interfaces with the FA-M3 CPU through a dedicated serial port that operates independently of the main backplane bus. The CPU’s teach pendant service routine is implemented as a low-priority interrupt handler, meaning pendant transactions — including program block reads, coil force commands, and register writes — are processed between scan cycles rather than within them. This architectural separation is deliberate: it prevents pendant-induced latency from propagating into the deterministic scan time budget, which on F3SP-series CPUs is configurable down to 0.5 ms for high-speed motion tasks.

The proprietary RS-232C protocol used by the AF410/T incorporates a checksum-verified frame structure. Each command packet includes a function code, address field, data payload, and a two-byte CRC, providing error detection at the transport layer without relying on the host OS. This is significant in electrically noisy environments — common in variable-frequency drive (VFD) cabinets and servo amplifier enclosures — where RS-232C lines can pick up common-mode interference. The pendant’s internal UART hardware applies noise filtering on the receive line, and the coiled cable’s shielding is bonded to the pendant chassis ground, providing a continuous EMC barrier from the CPU port to the handheld unit.

The membrane keypad uses a gold-contact dome switch matrix rated for a minimum of 1 million actuations per key. The matrix is scanned at 10 ms intervals by the pendant’s onboard microcontroller, which debounces inputs in firmware before encoding them into serial command frames. This eliminates false key-press events caused by mechanical vibration — a failure mode observed with capacitive touch panels in high-vibration press and stamping environments. The IP54 enclosure seal is achieved through a continuous gasket around the LCD bezel and a labyrinth seal at the cable entry point, preventing ingress of fine metallic dust and coolant mist without requiring a separate protective cover.

System Integration Benefits

• Zero-laptop commissioning: Engineers can upload, download, and verify FA-M3 ladder programs directly from the pendant without a PC or programming software license on-site, reducing commissioning setup time by eliminating workstation dependency.
• Non-intrusive scan-cycle operation: Pendant transactions are serviced between CPU scan cycles via interrupt, ensuring that I/O forcing and register writes do not introduce measurable jitter into time-critical control loops.
• Real-time I/O diagnostics: The AF410/T provides live monitoring of discrete I/O states, analog channel values, and internal relay (IR) coil status, enabling fault isolation without disconnecting field wiring or using a separate meter.
• Motion axis parameter access: For FA-M3 motion modules, the pendant supports direct read/write of axis parameters including acceleration ramps, position limits, and encoder feedback offsets — functions not accessible through standard HMI panels.
• Deterministic register write confirmation: Each write command returns an acknowledgment frame from the CPU, providing the operator with positive confirmation that the parameter change was accepted and applied within the current scan cycle.
• Portable fault logging: The pendant’s onboard memory retains the last accessed program block and register map between power cycles, allowing maintenance personnel to resume diagnostics at the exact point of a previous session without re-navigating the program tree.
• Reduced mean time to repair (MTTR): By consolidating program access, I/O monitoring, and parameter tuning into a single handheld instrument, the AF410/T reduces the number of tools and personnel required for field fault resolution, directly lowering MTTR in production environments.
• Compatibility with STARDOM FCN/FCJ remote nodes: The AF410/T supports STARDOM FCN and FCJ controllers in addition to FA-M3, providing a single pendant solution for mixed-architecture plants where both platforms coexist on the same network segment.
• EMC-hardened cable assembly: The integrated coiled cable incorporates a braided shield bonded to the pendant chassis, attenuating conducted and radiated interference from adjacent VFD and servo amplifier switching transients without requiring additional ferrite suppression.

Quality Assurance & Global Logistics

Every YOKOGAWA AF410/T unit supplied by siemensplc.com is sourced through verified industrial distribution channels and undergoes a multi-point inspection prior to dispatch. Physical inspection covers enclosure integrity, LCD backlight function, keypad actuation force uniformity, cable continuity, and connector pin condition. Label authenticity is cross-referenced against YOKOGAWA’s published part marking standards to confirm genuine manufacture. Units that do not pass inspection are quarantined and not listed for sale.

Shipments originate from our warehouse in Xiamen, China — a major logistics hub with direct access to international express carriers including DHL Express, FedEx International Priority, and UPS Worldwide Expedited. Standard in-stock orders are processed and handed to the carrier within 24–48 hours of payment confirmation. Transit times to major industrial centers in Southeast Asia, the Middle East, Europe, and North America typically range from 3 to 7 business days via express services. For time-critical plant shutdowns or emergency maintenance scenarios, same-day dispatch is available on confirmed stock with order placement before 14:00 CST.

All shipments include a commercial invoice with accurate HS code classification (HS 8537.10 for programmable controllers and accessories), supporting smooth customs clearance in most jurisdictions. Export documentation, including packing lists and certificates of origin, is prepared in accordance with destination country requirements. For customers requiring a Certificate of Conformance or third-party inspection report prior to shipment, these can be arranged upon request at the time of order placement.

A 12-month warranty is provided on all genuine YOKOGAWA AF410/T units from the date of shipment. Warranty coverage addresses manufacturing defects and component failures under normal operating conditions as defined by YOKOGAWA’s published environmental specifications. Warranty claims are processed through our Xiamen technical team, with replacement units dispatched within 5 business days of fault confirmation.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
© 2026 siemensplc.com. All rights reserved.