IC694ALG223 is an Analog Current Input Module featuring 16 channels with single-ended inputs. Each input can be configured through the provided software for three input ranges: 4 to 20 mA, 0 to 20 mA, or 4 to 20 mA Enhanced.

Key Features

• Alarm Limits: High and/or low alarm limits are available for all ranges. The 4 to 20 mA Enhanced range can detect input current from 4 mA to 0 mA, allowing open-wire fault detection in 4 to 20 mA applications.
• Status Reporting: The module can report both module status and external power status to the CPU using assigned program reference addresses.
• Compatibility: Installation aligns with any I/O slot in an RX3i system.

Power Requirements:

• Current Consumption:
  • 120 mA from the 5 VDC bus on the PLC backplane.
  • 65 mA plus loop current(s) from a user-supplied +24 VDC supply.

LED Indicators

• MODULE OK LED:
  • ON: Status OK and module configured.
  • OFF: No backplane power recognized or watchdog timer timed out.
  • Rapid Flashing: Configuration data not received from the CPU.
  • Slow Flashing: Indicates failed power-up diagnostics or code execution error.
• User Supply LED: Confirms that the external 24 VDC supply meets specifications.

Configurable Parameters

• Active channels
• Reference address for input data
• Length and range
• Low/high alarm
• I/O scan set

Technical Specifications

• Number of Channels: 16 single-ended
• Current Range: 4 – 20 mA, 0 – 20 mA, 4 – 20 mA
• Calibration: Factory (4 μA or 5 μA per count)
• Update Rate: 13 msec
• Input Filter Response: 200 Hz
• Power Consumption:
  • 120 mA @ +5VDC
  • 65 mA @ +24VDC Isolated