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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification Value |
| Part Number | RH916YZ (Equivalent to P0916YZ / P0917JW base types) |
| Output Channels | 16 discrete output channels (Solid-state switching) |
| Output Voltage Range | 15 to 132 V AC (47 to 63 Hz) / 15 to 125 V DC |
| Max Load Current | 2.0 A per channel @ 30°C (derated to 1.0 A @ 70°C); 8.0 A max per module |
| Off-State Leakage Current | 2.5 mA maximum @ 120 V AC |
| Isolation Rating | 1,500 V AC channel-to-ground; 1,500 V AC channel-to-channel |
| Power Dissipation | 7.0 W maximum @ 24 V DC backplane supply |
| Bus Communication | 2 Mbps redundant Module Fieldbus (HDLC protocol) |
| Operating Temperature | −20 to +70°C (−4 to +158°F) |
| Field Termination | External Termination Assembly (ETA) via 25-pin D-sub cable |
Product Introduction & Supply Chain Strategy
The Foxboro FBM242 RH916YZ is a 16-channel discrete output module engineered for high-density switching applications within Foxboro I/A Series and EcoStruxure DCS platforms. It drives solenoid valves, motor starters, indicator lights, and intermediate relays, delivering robust galvanic isolation between sensitive control electronics and harsh industrial field circuits.
Stocking the FBM242 RH916YZ as New Surplus prevents severe operational bottlenecks when field outputs fail during continuous process runs. Using refurbished output modules exposes your system to degraded solid-state switches and thermal fatigue from prior heavy electrical loads—leading to output latch-ups or shorted channels. Choosing genuine New Surplus guarantees original dielectric strength, zero thermal wear, and maximum operational life at a favorable Total Cost of Ownership (TCO).
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Perform Lock-Out/Tag-Out (LOTO) on all external field power sources connected to the External Termination Assembly (ETA).
- Attach a wrist strap grounded to the enclosure frame before touching the replacement module.
- Verify the baseplate slot keying pins match the physical position cutout required for the FBM242 module type.
- Test the ETA terminal points with a calibrated multimeter to ensure 0 V AC/DC across all 16 output circuits.
Stage 2: Removal
- Unfasten the top and bottom captive mounting screws on the existing FBM242 module.
- Release the module latches by pivoting them outward to unseat the internal backplane connector.
- Slide the card out along the baseplate guide rails using smooth, straight motion to protect backplane pin alignment.
Stage 3: Installation (Clone & Seat)
- Inspect the replacement FBM242 RH916YZ DIP switches and ensure node address settings match the removed unit.
- Carefully align the module card edge with the baseplate guide slots.
- Push the module firmly into place until the latches click, signaling complete backplane engagement.
- Torque the top and bottom captive screws to 0.5 Nm (4.4 in-lb) to maintain solid protective earth bonding.
Stage 4: Power-On & Testing
- Restore 24 V DC system power to the baseplate assembly.
- Check the front-panel status LED:
- Solid Green: Module passed power-up diagnostics and joined the Module Fieldbus network.
- Flashing Red / Solid Red: Hardware fault detected or communication link error.
- Re-energize field loop supply voltages and test individual channel output switching via the DCS System Definition Utility (SDU) or FoxView/Control HMI.
Firmware/Software Versions & Upgrade Notes
- Recommended Firmware Version: Revision 1.50 or higher for I/A Series software releases v8.4 through EcoStruxure DCS v9.x.
- Backward Compatibility: Fully backward compatible with standard 200 Series DIN-rail baseplates (P0926AE/AF) and legacy CP40/CP60 control environments.
- Firmware Upgrade Risks: Never flash or alter module firmware while the unit is online. Firmware mismatches or aborted flashes will cause the Control Processor to mark the module as
FAILED, placing all 16 output channels into their fail-safe (open/off) state and causing unexpected process trips.
FBM242 RH916YZ
FBM242 RH916YZ
Frequently Asked Questions (FAQ)
What is the difference between part numbers RH916YZ and P0916YZ?
RH916YZ and P0916YZ identify the exact same Foxboro FBM242 16-channel discrete output hardware module. “P0916YZ” is the legacy part number format, while “” represents the RoHS-compliant global manufacturing part number. They are 100% interchangeable in form, fit, and function.
How do you confirm these modules are New Surplus rather than refurbished?
Every unit is sourced directly from verified surplus project inventory and OEM spare holds. They remain in original factory anti-static packaging, showing pristine gold backplane connector contacts with no insertion scoring, zero thermal discoloration on the housing, and factory serial tags.
Can I hot-swap the module while the DCS is operating?
The 200 Series baseplate architecture permits hot-swapping the module itself. However, you must isolate or switch off the 120 V AC/125 V DC field power feeding the ETA before insertion. Plugging a module into a live field load can cause arc bridging across contacts or trigger unexpected actuator energization.
How are output fail-safe states handled if communication with the CP is lost?
Fail-safe actions are configured within the DCS control software (ECB23 / block configuration). Upon losing Fieldbus communications, the hardware automatically transitions outputs to their pre-configured safety state—either Hold Last Value (HLV) or Fallback to Off (0 V)—within 250 milliseconds.
What warranty is included with this New Surplus module?
We back every New Surplus Foxboro module with a full 1-year functional replacement warranty. If a module fails internal self-test routines or experiences channel faults during normal operation, we will replace it immediately from our ready stock.
