Process & Discrete Automation Solution — Schneider Electric Modicon PC-E984-685 | Quantum Series
Where This Product Is Used
The Modicon PC-E984-685 is a high-performance programmable controller module from Schneider Electric’s Quantum series, engineered for demanding industrial environments. Typical deployment scenarios include:
- Oil & Gas Processing Plants — pipeline SCADA, compressor control, and emergency shutdown (ESD) systems
- Power Generation & Utilities — turbine sequencing, load management, and substation automation
- Water & Wastewater Treatment — pump station control, dosing systems, and remote telemetry
- Automotive & Heavy Manufacturing — assembly line sequencing, robotic cell coordination, and conveyor control
- Chemical & Pharmaceutical Plants — batch process control, reactor management, and safety interlocks
- Mining & Minerals Processing — crusher control, conveyor drives, and plant-wide DCS integration
Technical Specifications
| Part Number | PC-E984-685 |
| Brand | Schneider Electric / Modicon |
| Series | Quantum (984 Architecture) |
| Module Type | Programmable Controller / CPU Module |
| Programming Standard | IEC 61131-3 compatible (Ladder, FBD, SFC) |
| Communication Ports | Modbus / Modbus Plus |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Mounting | Quantum backplane rack-mount |
| Weight | 26.5 kg (shipping) |
| Condition | New / Surplus / Refurbished (specify on inquiry) |
Why Engineers Specify This Model
- Proven 984 Architecture — decades of field-validated reliability in mission-critical installations worldwide
- Modbus Plus Native — seamless peer-to-peer networking with other Quantum and Momentum nodes without additional gateways
- Hot-Standby Ready — supports redundant CPU configurations for zero-downtime process continuity
- Large Memory Capacity — handles complex ladder logic programs with extensive I/O mapping
- Wide Ecosystem Compatibility — integrates with Quantum I/O drops, RIO heads, and third-party SCADA platforms via standard Modbus RTU/TCP
- Long Service Life — Schneider Electric’s extended parts availability and global support network
Complete System Bill of Materials
For a fully operational Quantum PLC rack using the PC-E984-685, engineers typically specify:
- Quantum backplane (e.g., 140 XBP 016 00 — 16-slot rack)
- Quantum power supply module (e.g., 140 CPS 111 00)
- Discrete I/O modules (e.g., 140 DDI 353 00 / 140 DDO 353 00)
- Analog I/O modules (e.g., 140 ACI 040 00 / 140 ACO 130 00)
- Modbus Plus network cable and tap connectors
- Concept or ProWORX programming software license
- Remote I/O head adapter (if distributed I/O drops required)
Contact Konmask for bundled BOM sourcing and compatibility verification.
Compliance & Industry Standards
- IEC 61131-3 Programming Languages
- CE Marking (European Conformity)
- UL Listed (Underwriters Laboratories)
- RoHS Compliant
- Modbus Organization Certified Protocol
- Suitable for SIL-rated safety system integration (consult safety manual)
Quality Assurance & Sourcing
All Modicon modules supplied by Konmask.com undergo a structured quality process:
- Visual inspection for physical damage, corrosion, and counterfeit indicators
- Firmware version verification against Schneider Electric release notes
- Functional power-on test where applicable
- Anti-static packaging with humidity indicator cards
- Full traceability documentation available on request
How to Source This Part
- Submit an RFQ — email [email protected] with your required quantity, delivery timeline, and condition preference (new / surplus / refurbished).
- Receive a Quote — our team responds within 1 business day with pricing, lead time, and availability confirmation.
- Place Your Order — secure checkout via the product page or via proforma invoice for B2B accounts.
- Shipping & Logistics — worldwide export from China; DHL, FedEx, and sea freight options available. HS code provided for customs clearance.
Application-Specific FAQ
Q: Is the PC-E984-685 compatible with Unity Pro software?
A: The 984-series architecture uses Concept or ProWORX NxT programming environments. Unity Pro targets the Quantum 140 CPU series. Please confirm your software environment before ordering.
Q: Can this module be used in a hot-standby redundancy configuration?
A: Yes. The PC-E984-685 supports hot-standby CPU redundancy when paired with the appropriate Quantum redundancy module and cabling. Contact us for a complete redundancy BOM.
Q: What is the difference between PC-E984-685 and 140CPU65160?
A: The PC-E984-685 belongs to the legacy 984 Quantum architecture, while the 140CPU65160 is part of the newer Quantum 140 series with Unity Pro support and enhanced Ethernet connectivity. Both are in active use; selection depends on your existing rack infrastructure.
Q: Do you provide a warranty?
A: Yes. Konmask offers a standard 90-day functional warranty on all modules. Extended warranty options are available — inquire at time of order.
Q: Can you supply multiple units for a plant-wide upgrade?
A: Yes. We specialize in bulk and project-quantity sourcing. Contact us with your full BOM for a consolidated quote.
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