Description
The Emerson / GE Fanuc VersaMax IC200ALG260 is an 8-channel, 12-bit resolution analog input module designed to interface with voltage and current field transmitters. Operating directly on the VersaMax I/O backplane, this module provides eight single-ended channels configured to receive either 0 to 10 V DC, -10 to +10 V DC, 4 to 20 mA, or 0 to 20 mA signals. Its compact form factor makes it suitable for high-density analog data acquisition across variable frequency drives, level sensors, and pressure transmitters.
Technical Specifications
| Parameter | Specification / Value |
| Brand / Manufacturer | Emerson Automation Solutions (Formerly GE Fanuc) |
| Model Number | IC200ALG260 |
| Product Line | VersaMax I/O System |
| Number of Channels | 8 single-ended channels |
| Conversion Resolution | 12 bits (Unipolar: 4,000 counts; Bipolar: 4,000 counts over \pm10 V range) |
| Input Signal Ranges | Current: 4 to 20 mA, 0 to 20 mA
Voltage: 0 to 10 V DC, -10 to +10 V DC |
| Input Impedance | Current Mode: 250 \Omega
Voltage Mode: 500 k\Omega minimum |
| Update Rate | ~7 ms for all 8 channels |
| Base Accuracy (at 25 °C) | Current Mode: \pm0.5% of full scale
Voltage Mode: \pm0.5% of full scale |
| External Power Requirement | 24 V DC (+20%, -15%), typical 100 mA required |
| Backplane Current Draw | 20 mA maximum from 5 V DC bus |
| Isolation Standards | 250 V AC continuous / 1500 V AC for 60 seconds (field-to-logic) |
Field Reliability & Integration Constraints
When incorporating the IC200ALG260 into instrument processing skids, consider these hardware constraints and physical topologies during panel layout:
- Single-Ended Channel Topology: The IC200ALG260 utilizes a single-ended design, meaning all eight channels share a common return path (neutral/ground reference) on the terminal block. If your field transmitters are loop-powered from different isolated power sources or have distinct ground potentials, single-ended channels can create ground loops, causing measurement offsets or erratic readings. Use external signal isolators for transmitters that cannot share a common return.
- External 24 V DC Requirement: While the module pulls its 5 V logic power from the backplane, it relies on an external 24 V DC supply connected via the carrier terminals to power its internal analog-to-digital conversion circuitry. If this supply goes missing or drops voltage, the module will stop reporting valid input data, and a field power failure fault will register in the CPU.
- Current Mode Jumpering: When configuring channels for current mode (4 to 20 mA or 0 to 20 mA), external jumper connections are typically required at the carrier terminals to switch the 250 \Omega precision shunt resistor into the circuit. Ensure these jumpers are correctly placed according to the wiring diagram before powering the loop, or the module will read a high-impedance voltage open circuit.
Supply Chain & Commercial Terms
Commercial Availability Notice
- Product Condition: New Original (Factory Sealed Surplus or Current Production) / Refurbished (Tested & certified)
- Warranty Period: 12-month comprehensive warranty from the date of shipment
- Lead Time: Ships within 1 to 2 business days from active stock availability
- Pricing Structure: Listed prices are indicative and subject to current global market material costs. Contact our sales engineering team for a formal, firm quotation.
Frequently Asked Questions
Can I mix voltage and current signals on the same IC200ALG260 module?
Yes. Each channel is individually configured via your PLC configuration software (e.g., PAC Machine Edition). You can mix 4 to 20 mA current loops and \pm10 V voltage signals on a single module, provided all inputs share the same common ground reference.
What happens if a wire breaks on a channel configured for 4 to 20 mA?
When a 4 to 20 mA loop experiences a broken wire or open circuit, the input signal drops below the 4 mA threshold. The module detects this under-range state and transmits a low alarm/fault bit to the CPU register, which can be monitored within your logic to trigger instrumentation alarms.
Does this module provide hardware filtering for high-frequency noise?
The module features basic input filtering to suppress high-frequency noise from field wiring. However, because it update channels within approximately 7 ms, high-frequency spikes can still pass through. For applications with high electromagnetic interference, use shielded twisted-pair cabling grounded exclusively at one end.




