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The GE Fanuc IC200ALG265, also cataloged as the IC200ALG265 Analog Input Module, operates as a dedicated hardware component for multi-channel voltage and current signal acquisition within VersaMax I/O platforms. The module processes 15 single-ended channels arranged in a single group, converting -10 to 10 VDC or 4 to 20 mA analog inputs into 15-bit digital values with integrated overvoltage protection and diagnostic detection.

Hardware Specifications

Parameter Specification
Model IC200ALG265
Brand GE Fanuc
Origin USA
Weight 3.00 lbs (1.36 kg)
Dimensions Single-slot VersaMax module footprint
Operating Temp 0 deg C to 60 deg C
Power Consumption 100 mA maximum at 5 VDC (supplied via backplane)
Input Channels 15 single-ended channels (1 group)
Resolution 15-bit
Input Voltage Range -10 VDC to 10 VDC
Input Current Range 4 to 20 mA (1 to 20 mA functional operating limits)
Input Impedance 100k Ohms
Update Rate 7.5 ms
Measurement Accuracy 0.3% typical, 1% maximum (derate by +/-2% under RF interference)
Isolation 250 VAC continuous, 1500 VAC for 1 minute (frame to ground)
Status Indicator OK LED

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The module executes direct serial communication over the VersaMax local backplane, drawing 100 mA maximum from the internal 5 VDC logic bus to transfer updated 15-bit conversion data every 7.5 ms. Built-in input protection prevents thermal and electrical damage to input sense resistors during voltage overload conditions on field loops. Dynamic register scaling and onboard diagnostic polling ensure fast cyclic transmission across deterministic PLC networks without requiring external field power supplies.

Frequently Asked Questions

Q: Does the IC200ALG265 require an external power supply for channel processing?

A: No, the module operates entirely using 5 VDC power supplied directly through the VersaMax backplane bus structure.

Q: Are the 15 input channels isolated from one another?

A: No, all 15 single-ended input channels reside in a single common group without channel-to-channel isolation; isolation is provided at 250 VAC continuous between the system frame and ground.

Q: How does radiofrequency (RF) interference affect measurement accuracy?

A: Exposure to intense RF interference requires derating the overall analog channel accuracy by an additional +/-2%.

Field Installation Guidelines

  1. Align and snap the module chassis securely onto the VersaMax backplane base or DIN rail assembly.
  2. Confirm backplane power is off before inserting or removing the module from its carrier interface.
  3. Wire field input transmitters using shielded twisted-pair cables to protect signal integrity against electromagnetic and radiofrequency noise.
  4. Terminate signal cable shields to a low-impedance ground point on the cabinet ground bar.
  5. Verify proper backplane initialization by observing that the green module OK LED remains solid after power-up.

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