Why Maintenance Teams Specify the BMXDAI1602
When a packaging line stalls because a limit switch signal never reaches the controller, every minute of downtime erodes throughput and margin. The BMXDAI1602 from Schneider Electric solves that problem at the I/O layer. This Modicon X80 discrete AC input module accepts 16 field signals directly at 100-120 V AC, so you can wire pushbuttons, selector switches, and AC proximity sensors without interposing relays. Fewer components mean fewer failure points and faster service when something does go wrong.
What This Module Does
The BMXDAI1602 is a 16-channel discrete AC input module in the Modicon X80 series. It reads on/off states from field devices powered by 100-120 V AC and passes that status to the PLC backplane. Group-to-group isolation separates input groups electrically, which limits fault propagation and protects the controller from field-side transients. A module status LED gives technicians an immediate visual health check during troubleshooting.
Key Parameters That Matter on the Floor
| Specification | Value |
|---|---|
| Channels | 16 |
| Signal type | Discrete AC input |
| Input range | 100-120 V AC |
| Isolation | Group-to-group |
| Field supply | 100-120 V AC |
| Power consumption | 2.4 W |
| Bus current | 100 mA @ 24 V DC |
| Connection | 20-pin terminal block |
| Operating temperature | 0°C to +60°C |
| Protection rating | IP20 |
Reliability and Serviceability
Maintenance engineers value the BMXDAI1602 because it simplifies spare-part strategy. One module covers 16 points, so a single spare on the shelf protects a full rack of inputs. The 20-pin terminal block lets you swap a module without disturbing field wiring. Group-to-group isolation means a fault on one input group does not take down the others, which keeps more of the process running while you diagnose the problem.
The IP20 rating suits clean control cabinets and operator panels. Keep the module within the 0°C to +60°C operating range and protect it from condensation. The 2.4 W power draw and 100 mA bus current are modest, so they will not strain a typical 24 V DC backplane supply.
Where It Fits
This module suits discrete manufacturing cells that use AC control voltage. Typical examples include conveyor start/stop stations, motor starter auxiliary contacts, and AC pilot devices on packaging or assembly equipment. Because the Modicon X80 platform is shared across M340 and M580 controllers, the same input module works in both architectures. That commonality reduces training time and spare inventory for plants running mixed controller families.
Installation Notes
Mount the module in a Modicon X80 rack and secure the 20-pin terminal block. Verify the field supply is within the 100-120 V AC range before energizing inputs. Confirm the module status LED shows normal operation after power-up. Follow Schneider Electric’s installation manual for rack torque and grounding. Do not exceed the specified operating temperature or humidity limits.
Maintenance Guidance
Inspect the module periodically for loose terminal connections and dust buildup. Check the status LED during routine rounds. If an input channel fails to register, verify field voltage at the terminal block before replacing the module. Keep a spare BMXDAI1602 on hand to minimize mean time to repair. Store spares between -25°C and +70°C in a dry location.
Verify Before You Order
The lifecycle status for this module is active as a shared I/O platform for M340 and M580. Please verify current lifecycle status and availability with SpareTechPLC before ordering. Confirm your rack type, controller family, and field voltage match this module’s ratings. SpareTechPLC supplies industrial automation parts and can help you cross-check compatibility.
Frequently Asked Questions
Q: Can I use the BMXDAI1602 with both M340 and M580 controllers?
A: Yes. The Modicon X80 platform is shared across M340 and M580, so this module fits both architectures.
Q: What field voltage does this module accept?
A: It accepts 100-120 V AC discrete input signals.
Q: How many input channels does it provide?
A: It provides 16 discrete AC input channels in a single module.
Q: What is the power consumption?
A: The module consumes 2.4 W and draws 100 mA at 24 V DC from the bus.
Q: What connection type does it use?
A: It uses a 20-pin terminal block for field wiring.
