Description
- Model: GE 8101-HI-TX-02
- Brand: GE Fanuc / General Electric (USA)
- Series: VersaMax I/O System
- Core Function: High-density analog signal acquisition for PLC/DCS systems
- Condition: Original New Surplus (New in Box), Factory Sealed
- Type: Analog Input Module (AI)
- Key Specs: 16 Channels | 4-20 mA / 0-10 V | 16-bit Resolution
- Number of Channels: 16 single-ended or 8 differential inputs
- Input Range: 4 to 20 mA, 0 to 20 mA, 0 to 10 V, ±10 V (Software configurable)
- Resolution: 16-bit converter (High-precision sensing)
- Input Impedance: >1 MΩ (Voltage), 250 Ω (Current)
- Isolation: 1500 V AC between field side and logic side
- Update Rate: Approximately 10 ms for all 16 channels
- Power Consumption: 120 mA @ 5 V DC (from backplane)
- Diagnostics: Open wire detection (4-20 mA), over/under range, and module health LED
- Configuration: Via Proficy Machine Edition or VersaPro software
- Termination: Requires a VersaMax terminal base (e.g., IC200TBB001)
GE 8101-HI-TX-02
Installation & Configuration Guide
In my experience with the VersaMax line, the 8101-HI-TX-02 is a workhorse, but because it’s high-density, the wiring can get crowded. If you aren’t careful with the common returns, you’ll end up with crosstalk or ground loops that drive your readings crazy.
Phase 1: Preparation (10 minutes)
⚠️ Safety First:
- Power down the VersaMax NIU (Network Interface Unit) or CPU rack before insertion.
- Confirm your signal types. Mixing 4-20 mA and 0-10 V on the same module is possible, but check your software scaling.
- Ensure you have the correct terminal base. The module snaps onto the base, not directly to a rail.
Phase 2: Hardware Setup
- Module Alignment: Align the 8101-HI-TX-02 with the guide rails of the terminal base.
- The “Click”: Press down firmly until the latches click. A loose module is the #1 cause of “Module Missing” faults in Proficy.
- Shielding: Since this is a high-resolution 16-bit module, use shielded twisted pair (STP) cabling. Ground the shield at the rack end only to prevent ground loops.
Phase 3: Configuration (Software)
- Open your hardware configuration.
- Add the 8101-HI-TX-02 to the correct slot.
- Crucial Step: Set the “Input Range” for each channel. If you send 20 mA to a channel configured for 10 V, you might blow the internal shunt resistor.
- Download the hardware configuration to the PLC.
Phase 4: Testing & Calibration
- Use a signal generator (like a Fluke 789) to inject 4 mA and 20 mA.
- Verify the raw counts in the PLC registers (typically 0 to 32,000 or 4,000 to 20,000 depending on scaling).
- Check the “OK” LED on the module faceplate. It should be solid green.
GE 8101-HI-TX-02
Customer Cases & Industry Applications
Case 1: Chemical Processing Plant – High-Density Monitoring A chemical plant in Singapore needed to add 40 new temperature and pressure sensors to an existing VersaMax rack. Space was limited. By using three 8101-HI-TX-02 modules, they handled all 40 points in just 3 slots. Result: They saved $2,500 on additional rack hardware and avoided installing a secondary remote I/O cabinet.
Case 2: Data Center HVAC Control – Faulty Module Replacement A large data center’s cooling system failed when an older analog input card shorted out. The HVAC system couldn’t read the chilled water return temperature, causing the chillers to cycle erratically. We provided a New Surplus 8101-HI-TX-02 via priority airfreight. Result: The module was installed and configured within 3 hours of arrival, stabilizing the server room temperature before any equipment hit the thermal trip point.
GE 8101-HI-TX-02
Frequently Asked Questions (FAQ)
Q: Can this module replace the older IC200ALG260? A: Generally, yes. The 8101-HI-TX-02 is part of the 8000 series (often rebranded or specialized versions), but it follows the VersaMax architecture. However, always verify the “HI-TX” suffix compatibility with your specific controller firmware, as some TX versions were optimized for specific turbine or high-speed control systems.
Q: Does it support “Hot Swapping”? A: VersaMax supports Hot Insertion/Extraction (HIE) if the terminal base is powered correctly and the CPU supports it. However, I always recommend powering down the rack if possible. It’s a 30-second precaution that prevents a potential backplane spike.
Q: Why do my 4-20 mA readings stay at 0 even when the sensor is on? A: Check your wiring. This is a single-ended module. If you are using a 2-wire transmitter, you must provide external 24 V DC power to the loop. The 8101-HI-TX-02 does not provide “loop power” to the sensors; it only measures the current.
Q: Is this GE Fanuc or Emerson? A: GE Fanuc originally developed the VersaMax line. The automation division was later acquired by Emerson. Whether your box says GE or Emerson, the 8101-HI-TX-02 is functionally identical and fully compatible across both brands’ hardware.
Q: How do I know if this is “New Surplus” or used? A: We inspect the factory seal on the box and check for any witness marks on the gold backplane connectors. Used modules always show slight scratching on the connectors. Our units are pristine, in original packaging, and haven’t been energized since they left the factory.
