GE IC670ALG230 Analog Input Module | Series 90-70 PLC Platform
Engineering Background
The IC670ALG230 is a high-density analog input module developed by GE Fanuc (now GE Automation & Controls) for the Series 90-70 programmable logic controller platform — one of the most widely deployed rack-based control architectures in heavy industry. Designed to interface real-world process signals with the PLC’s CPU, this module serves as the primary analog front-end in applications where signal fidelity, channel density, and long-term platform stability are non-negotiable engineering requirements.
Product Positioning
Targeted at maintenance engineers, system integrators, and procurement specialists managing legacy Series 90-70 installations, the IC670ALG230 provides a direct drop-in replacement path with no firmware or rack reconfiguration required. Konmask.com stocks verified units sourced through controlled supply chains, supporting both emergency MRO procurement and planned capital refresh programs.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | IC670ALG230 |
| Manufacturer | GE Fanuc / GE Automation & Controls |
| Platform | Series 90-70 PLC |
| Module Type | Analog Input |
| Number of Channels | 16 (single-ended) / 8 (differential) |
| Input Signal Range | 4–20 mA, 0–10 VDC, ±10 VDC (configurable per channel) |
| Resolution | 12-bit (4096 counts) |
| Conversion Speed | ≤ 2 ms per channel (typical) |
| Input Impedance | > 1 MΩ (voltage mode); 250 Ω (current mode) |
| Isolation | 500 VAC field-to-backplane |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Power Consumption | ≤ 3.5 W (from backplane) |
| Backplane Compatibility | IC697CHS750, IC697CHS782, IC697CHS790 and compatible Series 90-70 racks |
| Configuration Method | Logicmaster 90-70 / Proficy Machine Edition software |
| Dimensions (H × W × D) | Standard Series 90-70 single-slot form factor |
| Weight | Approx. 100 g |
| Certifications | UL Listed, CE Marked |
Proven Application Environments
- Oil & Gas: Wellhead pressure/temperature monitoring, compressor station control, pipeline SCADA integration
- Power Generation: Turbine inlet temperature sensing, generator excitation feedback, boiler drum level control
- Chemical & Petrochemical: Reactor temperature profiling, flow transmitter interfacing, distillation column control
- Water & Wastewater: Pump station level monitoring, pH/ORP signal acquisition, dosing system feedback
- Automotive Manufacturing: Press force monitoring, paint booth environmental control, conveyor tension feedback
- Pulp & Paper: Dryer section temperature control, stock consistency measurement, headbox pressure regulation
Engineering Advantages
- High Channel Density: 16 single-ended inputs per slot minimizes rack space and reduces per-channel installed cost in large analog I/O applications.
- Flexible Signal Conditioning: Per-channel configuration for current or voltage input eliminates the need for external signal conditioners in mixed-signal installations.
- 12-Bit Resolution: Provides 0.024% full-scale resolution — sufficient for most industrial process control loops without requiring higher-cost 16-bit alternatives.
- Galvanic Isolation: 500 VAC field-to-backplane isolation protects the CPU and backplane from ground loops and transient overvoltages common in industrial field wiring environments.
- Hot-Swap Compatible: Supports module replacement under power in appropriately configured Series 90-70 racks, minimizing process downtime during maintenance.
- Long-Term Platform Availability: Konmask maintains stock of legacy GE Series 90-70 modules to support extended plant lifecycles beyond OEM production end-of-life.
System Architecture & Signal Flow
The IC670ALG230 occupies a single slot in any Series 90-70 rack and communicates with the CPU module via the high-speed VME-based backplane bus. Field wiring terminates at the module’s front-panel terminal block. Each analog channel passes through an input multiplexer, programmable gain amplifier, and successive-approximation ADC before the digitized value is written to the CPU’s %AI reference table. Channel configuration (range, alarm limits, scaling) is performed offline via Logicmaster 90-70 or Proficy Machine Edition and stored in the CPU’s configuration memory — no DIP switches or jumpers are required on the module itself.
Signal path: Field transmitter → Terminal block → MUX → PGA → 12-bit SAR ADC → Backplane bus → CPU %AI table → Application logic
Sourcing & Quality Verification
- Source Traceability: All IC670ALG230 units are sourced from verified industrial surplus, authorized distributors, or decommissioned OEM installations with documented service history.
- Incoming Inspection: Each module undergoes visual inspection (PCB, connectors, label integrity), power-on functional test, and channel-level analog accuracy verification prior to listing.
- Condition Grading: Units are graded as New Surplus (sealed OEM packaging), Refurbished (tested, cleaned, re-labeled), or Used-Tested (functional, cosmetic wear acceptable) — condition is stated explicitly on each listing.
- Counterfeit Mitigation: Konmask applies GE Fanuc authentication cross-checks including date code analysis, PCB revision verification, and component-level inspection to screen out counterfeit or remarked parts.
- Warranty: 90-day functional warranty on all tested units. Extended warranty available on request for volume orders.
Procurement Process
- Confirm Compatibility: Verify your rack model (IC697CHS7xx series) and CPU firmware revision support the IC670ALG230 I/O map. Contact our engineering team if unsure.
- Request a Quote: For orders of 3+ units or urgent MRO requirements, email support@konmask.com for volume pricing and lead time confirmation.
- Place Order: Add to cart and complete checkout. HKD pricing shown; USD/CNY invoicing available for B2B purchase orders.
- Shipping: Standard orders ship within 1–3 business days from Hong Kong. Express DHL/FedEx available. Export documentation (commercial invoice, packing list, COO) provided for international shipments.
- Incoming Acceptance: We recommend a bench power-on test upon receipt. Our technical team can provide a test procedure document on request.
Technical FAQ
Q: Is the IC670ALG230 compatible with the IC697 CPU series?
A: Yes. The IC670ALG230 is fully compatible with all IC697 CPU modules (IC697CPU731, IC697CPU771, IC697CPU781, IC697CPU788, etc.) when installed in a Series 90-70 rack.
Q: Can I mix current and voltage inputs on the same module?
A: Yes. Input type is configured per channel in software — no hardware changes required. Current and voltage channels can coexist on the same IC670ALG230.
Q: What is the difference between IC670ALG230 and IC670ALG240?
A: The IC670ALG240 is the analog output counterpart. The IC670ALG230 is input-only. Ensure you are ordering the correct module type for your I/O requirements.
Q: Does Konmask provide configuration support?
A: Yes. Our engineering team can assist with Logicmaster 90-70 or Proficy ME configuration files, I/O map documentation, and channel scaling parameters. Contact support@konmask.com.
Q: What is the lead time for bulk orders?
A: Standard stock ships within 1–3 business days. For orders of 10+ units, contact us in advance to confirm availability and reserve stock.
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