Description
The Emerson SE5009 is a hardware processing unit that serves as the central processing core for the DeltaV Distributed Control System (DCS). Commonly designated as the DeltaV MQ Controller, this module executes advanced process control logic, maintains system database variables, and orchestrates real-time communications between distributed I/O subsystems and the plant-wide control network.
Commercial Availability & Terms
- Condition: New Original (Factory Sealed Surplus) or Refurbished (Tested and Certified)
- Warranty: 12-Month Comprehensive Industrial Automation Warranty
- Availability: In Stock
- Standard Lead Time: Ships within 1–2 business days via premium global express couriers
- Pricing Note: Quoted prices are indicative and subject to regional market availability and inventory distribution. Contact our engineering sales desk for a firm, written quotation.
Technical Specifications
| Parameter | Value / Specification |
| DCS System Compatibility | Emerson DeltaV Control Network Architecture |
| Controller Class | MQ Controller Platform |
| Primary Memory Allocation | Expanded capacity for complex control strategies and continuous history logs |
| Input Supply Voltage | 24 V DC nominal delivered through the system carrier/backplane |
| Communication Interface | Dual redundant 10/100 Mbps Ethernet ports (Control Network) |
| I/O Module Support | Drives up to 64 local DeltaV I/O cards directly on the carrier rail |
| Redundancy Mechanism | Automatic hardware-level mirroring via redundant carrier slot placement |
| Operating Temperature | −40 to +70 °C (−40 to +158 °F) continuous ambient envelope |
Field Integration & Architectural Constraints
When deploying or executing a hot-migration with the Emerson SE5009 controller, several field parameters must be managed:
- Redundancy Synchronization: For a dual-redundant controller layout, the primary and standby SE5009 modules must be seated into adjacent slots on a redundant controller carrier. The active unit automatically synchronizes its memory, configuration data, and runtime execution state with the standby unit over the backplane channels.
- Firmware and Software Versioning: The SE5009 controller’s capabilities are linked to the DeltaV software drop version running on the engineering workstation (e.g., v13.3, v14.LTS, or newer). When replacing an existing controller, the new unit may require a firmware flash via the DeltaV Explorer interface to match the exact system database version before it can transition into an “Operational” state.
- Carrier Power Balancing: Ensure the bulk 24 V DC power supplies feeding the controller carrier are properly sized to handle the cumulative current draw of the dual controllers plus any attached local I/O interfaces. Transient voltage drops below 18 V DC will trigger the internal watchdog timer, forcing an un-commanded controller reset.
Frequently Asked Questions
Can the SE5009 be hot-swapped while the plant is operating?
In a fully redundant configuration, a faulted SE5009 controller can be pulled from the carrier and replaced online without disrupting the active control loops. The secondary controller seamlessly takes over the process using a bumpless, sub-millisecond failover routine. In non-redundant installations, extracting the single controller will immediately halt all control execution, freezing or tripping all associated I/O loops.
What is the purpose of the internal battery on this module?
The internal battery preserves the volatile RAM contents, system clock settings, and diagnostic fault logs during a total loss of main 24 V DC system power. If the battery voltage drops below the safe operating limit, the controller will flag a “Low Battery” warning in the DeltaV diagnostics console, indicating the battery must be replaced while power is applied to prevent memory loss during the next power cycle.
How do I troubleshoot a “Control Network Communication Fault” on this unit?
First, check the status LEDs located on the front face of the module. Ensure the network link LEDs are active. If the LEDs are dark, verify the integrity of the RJ45 network cables and check the ports on the upstream DeltaV smart switches (such as a carrier-connected network switch). If the physical layer is sound, verify that the controller’s internal network address properties accurately align with the node configuration inside the DeltaV database.
