Description
Honeywell Saia PCD3.W610 – RS‑232 Communication Module for PCD3 PLC Systems
The Honeywell Saia PCD3.W610 is a plug-in communication module designed to add a dedicated RS‑232 serial port to PCD3 PLC CPUs. From my experience, it’s the straightforward way to bring in barcode readers, serial HMIs, modems, and legacy instruments that still speak plain RS‑232 or Modbus/ASCII. You might notice that it keeps panel wiring tidy—no external converters or extra power bricks—because it draws power directly from the PLC and configures neatly through the PLC engineering tools.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Dedicated RS‑232 interface – Adds a point‑to‑point serial port for HMIs, printers, modems, or test instruments that still rely on RS‑232.
- Modbus/ASCII friendly – Typically used for Modbus RTU/ASCII over RS‑232, as well as vendor‑specific serial protocols.
- No external power – Powered by the PCD3 CPU backplane; reduces wiring, space, and potential failure points.
- Compact integration – Slot‑in architecture keeps the control cabinet clean; no DIN‑rail converters required.
- Flexible baud rates – Common speeds up to 115.2 kbps in many cases; fits typical device requirements without fuss.
- Configuration via PLC tools – Parameters and diagnostics are handled within the PCD3 engineering environment, which streamlines commissioning.
- Stable for 24/7 use – Industrial‑grade design aligned with Honeywell Saia PCD3 platform reliability.
Technical Specifications
| Brand / Model | Honeywell Saia PCD3.W610 |
| Product Type | RS‑232 communication interface module for PCD3 PLCs |
| HS Code | 8537.10 (Programmable control panels and modules) |
| Power Requirements | Supplied via PCD3 CPU/backplane; no external supply required |
| Operating Temperature | Typically 0…55 °C when installed in a standard PCD3 control cabinet environment |
| Communication Interfaces | 1 × RS‑232 (asynchronous); common baud rates up to 115.2 kbps; supports standard serial handshaking |
| Signal I/O Types | Serial data only (no discrete or analog channels) |
| Installation Method | Slot‑in module for PCD3 CPU communication slot; cabinet mounting via DIN‑rail PLC base |
| Compatibility | PCD3.M‑series CPUs with available communication slot (check CPU slot map before ordering) |
Related or Supporting Products
- PCD3.W600 – RS‑485/422 interface module; better for multi‑drop Modbus RTU networks compared with the point‑to‑point RS‑232 of PCD3.W610.
- PCD3.M5‑series CPUs – Higher‑performance CPUs with multiple communication slots; ideal when you need several serial and Ethernet ports on the same controller.
- PCD7.D5xx HMIs – Operator panels that can communicate via RS‑232 or RS‑485, typically paired with PCD3 for local visualization.
- PCD3 power supplies and bases – Standard DIN‑rail accessories for clean installation and reliable backplane power.
Installation & Maintenance
- Cabinet and environment – Use a ventilated control cabinet; maintain ambient conditions within the PLC’s rated range. Keep the module away from high‑EMI sources.
- Wiring practices – Use shielded serial cables, ground the shield at one end, and keep RS‑232 runs short (typically under 15 m). Avoid routing next to motor cables.
- Safety – Power down the PLC before inserting or removing the module. Observe ESD precautions when handling electronics.
- Commissioning – Configure port parameters (baud, parity, stop bits) in the PLC engineering software. Validate protocol timing with the device vendor’s guidelines.
- Routine maintenance – Periodically check connectors for looseness or oxidation, keep the cabinet clean, and save a backup of the PLC project after any changes. Firmware updates for the PLC should be applied as recommended.
Quality & Certifications
- CE and RoHS compliant; UL/cUL recognition is available on many PCD3 platform components.
- Manufactured under ISO 9001 quality systems.
- Manufacturer’s standard warranty applies; we additionally provide a 365‑day warranty on supply.
A quick field note: one facility engineer told us the PCD3.W610 “saved a lot of time” when swapping a dial‑up modem for a cellular serial gateway—no code refactor, just a port setup change and it ran first try. That seems to be a typical experience when keeping RS‑232 in the loop for retrofit jobs.
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