Configured for high-speed differential voltage measurement in NX I/O Bus architectures, the Omron NX-AD4608 (NX-AD4608 Analog I/O Unit) provides direct physical/electrical execution.

Ordering Information

• 1 x Omron NX-AD4608 Analog Input Unit
• 1 x Push-in Terminal Block (16-point, detachable)
• 1 x Instruction Sheet

Hardware Specifications

Backplane Bus & Deterministic Network Integration

The unit communicates directly via the synchronous NX I/O Bus, linking real-time analog signal acquisition with EtherCAT master controllers. Synchronous refreshing ensures signal processing latencies remain tightly bounded across high-density I/O configurations. Differential input circuitry suppresses common-mode electrical noise across all 8 voltage channels, preserving 15-bit digital resolution integrity. Firmware compatibility is dictated by the host CPU or EtherCAT Coupler Unit firmware revisional limits.

Mounting & Wiring Procedures

• Power down the entire NX bus backplane before engaging the unit onto the DIN rail track.
• Align the DIN rail lock mechanisms top and bottom, pressing the module backward until an audible click confirms engagement.
• Wire analog signal lines using shielded twisted-pair conductors to mitigate external electromagnetic interference.
• Strip wire ends according to the push-in terminal specification (8 to 10 mm) before inserting into the connector block.
• Secure signal cable shielding directly to the panel ground bar using low-impedance grounding clamps.

Technical Questions & Answers

• What is the conversion speed for the analog input processing?

  The conversion time operates at 0.08 ms per unit, delivering high-speed data updating synchronized with the NX bus cycle.

• What signal range does the module accept on its inputs?

  The unit is strictly configured for linear bipolar voltage inputs ranging from -10 VDC to +10 VDC across all 8 channels.

• How are the field wires connected to the physical hardware interface?

  Wiring connects via a single 16-point detachable push-in terminal block, permitting rapid replacement without rewiring.

• Does the module feature differential or single-ended input circuitry?

  The 8 analog channels utilize differential input circuits to maximize noise rejection across industrial field environments.

• What digital resolution is achieved by the analog-to-digital converter?

  The internal converter provides 15-bit resolution across the full -10 VDC to +10 VDC linear input scale range.

• Can the terminal block be removed while the system is installed?

  Yes, the front terminal block is fully detachable from the main module housing for maintenance accessibility.

• What IP rating applies to this specific module enclosure?

  The hardware features an IP20 protection rating and must be mounted inside an appropriately sealed control enclosure.

• Is the analog acquisition synchronized with the system CPU bus?

  Yes, the module supports synchronous I/O refreshing to ensure deterministic data transfer across the NX backplane.