GE IC694MDL660
GE IC694MDL660
GE IC694MDL660
GE IC694MDL660
GE IC694MDL660

GE IC694MDL660-EC | Revision EC of Selectable Filter Input for RX3i

  • Model: IC694MDL660-EC
  • Alt. P/N: IC694MDL660 (base model), IC694MDL660EC
  • Product Series: PACSystem RX3i (formerly GE Fanuc, now Emerson Automation)
  • Hardware Type: 24VDC 32-point discrete input module with software-selectable response time
  • Key Feature: Revision EC hardware revision; successor to IC694MDL660-CC; identical form-fit-functionality
  • Primary Field Use: Direct replacement for earlier IC694MDL660 revisions; current production revision
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Part number: GE IC694MDL660-EC
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Description

Hard-Numbers: Technical Specifications

  • Rated Input Voltage: 24VDC
  • Input Voltage Range: 0 to +30VDC
  • Inputs per Module: 32 (four isolated groups of eight inputs each)
  • Input Current: 7.0mA typical at rated voltage
  • On-State Voltage: 11.5 to 30VDC
  • Off-State Voltage: 0 to 5VDC
  • On-State Current: 3.2mA minimum
  • Off-State Current: 1.1mA maximum
  • Input Filter Times: 0.5ms, 1.0ms, 2.0ms, 5ms, 10ms, 50ms, 100ms (selectable per module via software)
  • On/Off Response Time: Matches selected filter time
  • Backplane Power Draw: 300mA maximum from +5VDC bus (all inputs on)
  • Isolation Rating (Field-to-Backplane): 250VAC continuous / 1500VAC for 1 minute
  • Isolation Rating (Group-to-Group): 250VAC continuous / 1500VAC for 1 minute
  • Operating Temperature: 0°C to +60°C (+32°F to +140°F)
  • Terminal Block: IC694TBB032 (box-style) or IC694TBS032 (spring-style), ordered separately
  • Module ID: 0x058h
  • CPU Requirement: RX3i CPU release 2.90 or later
  • Hot Swappable: Yes
GE IC694MDL660

GE IC694MDL660

The Real-World Problem It Solves

This is the Revision EC hardware update of the IC694MDL660 series, representing the current production revision. Like other revision updates in this family, it maintains identical functionality to its predecessors while incorporating manufacturing and component updates. If you’re ordering new IC694MDL660 modules today, this is likely the revision you’ll receive.

Where you’ll typically find it:

  • New system installations where the latest revision is specified
  • Replacement spares ordered from current production stock
  • Sites requiring uniformity across all modules in a system

Bottom line: Same function as all IC694MDL660 revisions. Order this when you need the current production version or your procurement spec requires the latest revision.

 

Hardware Architecture & Under-the-Hood Logic

The IC694MDL660-EC maintains the same architecture established in earlier revisions:

Revision EC characteristics:

  1. Same functional design: 32 inputs in four isolated groups, software-configurable filter times, terminal block presence detection.
  2. Manufacturing updates: Component sourcing changes, PCB improvements, or production process refinements typical of revision increments.
  3. No specification changes: Input characteristics, isolation ratings, power consumption, and response times are identical to IC694MDL660-CC.
  4. Full backward compatibility: Can replace any earlier IC694MDL660 revision without configuration changes.
GE IC694MDL660

GE IC694MDL660

Field Service Pitfalls: What Rookies Get Wrong

No Documentation of EC-Specific ChangesEmerson/GE doesn’t publish detailed changelogs for hardware revisions. The “-EC” suffix indicates a later manufacturing run, but the specific component or process changes aren’t publicly documented. This is normal for industrial automation hardware—revisions track manufacturing changes, not feature additions.

  • Field Rule: Assume Revision EC is functionally identical to Revision CC unless Emerson support documents otherwise. Don’t waste time looking for undocumented “improvements.”

Mixing Revisions in Critical SystemsWhile all revisions are functionally interchangeable, some regulated industries (pharmaceutical, nuclear, aerospace) require documented revision uniformity for validation purposes. Mixing -EC with older revisions may trigger documentation headaches even if the hardware works fine.

  • Quick Fix: For regulated environments, document the revision of each module in your validation records. If uniformity is required, plan a phased replacement during scheduled maintenance.

Terminal Block Still Not IncludedEvery revision of ships without a terminal block. Revision EC doesn’t change this. You still need to order IC694TBB032 or IC694TBS032 separately.

  • Field Rule: Always add the terminal block to your purchase order. This catches everyone at least once.

Assuming “EC” Means Enhanced FeaturesThe revision letter doesn’t indicate new features. -EC has the same seven filter times, same isolation ratings, and same diagnostics as the original IC694MDL660A from 2005. The revision tracks manufacturing changes, not capability upgrades.

  • Field Rule: If you need different functionality, you need a different module number, not a different revision letter. The family hasn’t changed its core function since introduction.

 

Commercial Availability & Pricing Note

Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.

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