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Configured for analog current and voltage signal processing in GE Series 90-30 PLC platforms, the GE IC693ALG442 (IC693ALG442 Analog Combination Module) provides direct physical/electrical execution. The unit processes 4 differential input channels and 2 single-ended output channels, supporting voltage and current ranges with internal diagnostic feedback.

Hardware Specifications

Parameter Specification
Model IC693ALG442
Brand GE Fanuc Emerson
Series Series 90-30
Product Type Analog I/O Modules
Input Channels 4 differential
Output Channels 2 single-ended
Input Signal Ranges 0 to 10 VDC, -10 to +10 VDC, 0-20 mA, 4-20 mA, 4-20 mA Enhanced
Output Signal Ranges 0 to 10 VDC, -10 to +10 VDC, 0-20 mA, 4-20 mA
Input Resolution 2.5 mV (0 to 10 V), 5 mV (-10 to +10 V), 5 uA (0-20 mA / 4-20 mA)
Output Resolution 0.625 uA (0-20 mA), 0.5 uA (4-20 mA)
Absolute Accuracy +/- 0.25% at 25 deg C full scale (+/- 0.5% over operating temperature range)
Channel Update Rates Input: 8 ms per channel; Output: 4 ms per channel
Input Impedance 800 K Ohms
Power Consumption 95 mA at +5 VDC internal backplane; 129 mA at external 24 VDC
External Power Supply 20 to 30 VDC (24 VDC nominal, 10% maximum ripple)
Field Termination Front-mounted 20-terminal removable connector block
Operating Temp 0 to +60 deg C
Dimensions Standard Series 90-30 single-slot footprint
Weight 0.43 kg (0.94 lbs)
Origin USA

Backplane Bus Interfacing and Deterministic Networks

The IC693ALG442 module transmits digitized field data across the backplane bus while receiving user-configured scaling parameters from the central processor. Backplane bus communication velocity guarantees dynamic update speeds of 8 ms for input scanning and 4 ms for output command execution. The module transmits performance data, power status, overload open-wire conditions, and out-of-range signal conversions directly to the PLC processor to maintain firmware flash compatibility and scan synchronization.

Frequently Asked Questions

Q: What power sources are required to operate the IC693ALG442 module?

A: The module draws 95 mA from the internal +5 VDC backplane bus and requires an external user supply of 20 to 30 VDC (24 VDC nominal) drawing 129 mA.

Q: How does the module handle signal inputs that exceed the defined measurement range?

A: If an input signal exceeds its configured operating range, the module converts the value to the nearest valid limit before passing the digitized count to the controller.

Q: What diagnostic monitoring features are available for current loop wiring?

A: The IC693ALG442 includes open-loop fault detection and open-wire detection when configured in current output modes.

Field Installation Guidelines

  1. Disconnect all primary rack power and field external 24 VDC power before inserting or removing the IC693ALG442 module.
  2. Wear a grounded ESD wrist strap bonded to the enclosure framework before touching internal components.
  3. Insert the module into the desired Series 90-30 baseplate slot, ensuring the top and bottom chassis hooks seat properly.
  4. Wire field instrumentation to the removable 20-terminal block on the front face, keeping signal wiring separated from high-voltage AC cables.
  5. Verify that external 24 VDC user supply polarity and voltage limits (20 to 30 VDC) are within limits prior to system power-up.

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