BMXDDI1602 Schneider Electric Modicon M340 Discrete Input Module

Product Description

The BMXDDI1602 is a 16-channel discrete input module for the Schneider Electric Modicon M340 automation platform. It receives 24 VDC signals from field devices and transfers their states to the PLC for logic processing and control. The module features isolated inputs, positive logic, compatibility with 2-wire and 3-wire proximity sensors conforming to IEC 60947-5-2, and channel-level diagnostic LEDs.

Hardware Specifications

Input Signal Processing

The BMXDDI1602 monitors 16 discrete field signals and reports their logical states to the Modicon M340 PLC. Its positive-logic input configuration supports 24 VDC field signals. The guaranteed state thresholds define the voltage and current conditions for recognizing ON and OFF signals; signals outside these guaranteed ranges may require further evaluation against the field device specifications.

The module provides a typical input filtering time of 4 ms and a maximum filtering time of 7 ms. This filtering helps reject short signal disturbances, although it also affects how quickly input transitions become visible to the PLC application.

Sensor Compatibility and Diagnostics

The module supports 2-wire and 3-wire proximity sensors conforming to IEC 60947-5-2. Its specified sensor supply range is 19-30 V. The sensor-status thresholds distinguish a sensor fault condition below 14 VDC from an OK condition above 18 VDC; the range between these thresholds is not explicitly classified in the supplied specifications.

Green channel LEDs support individual input-state checks, while the RUN and ERR indicators provide module-level operating and error information. The specified reverse-polarity protection and external fuse requirement should also be considered when reviewing the field wiring design.

Electrical Connection and Environmental Conditions

The BMXDDI1602 uses a 20-way connector and has an IP20 protection rating. Its operating temperature range is 0-60 deg C, with relative humidity from 10% to 95% without condensation. The specified power dissipation is no more than 2.5 W, which is relevant when assessing cabinet thermal conditions.

The module supports input paralleling, but the actual wiring arrangement must remain within the electrical limits of the connected sensors and input circuits. The supplied specifications identify one 0.5 A fast-blow external fuse per channel group; confirm the applicable wiring diagram before selecting or installing protective devices.

Frequently Asked Questions

Q: How many input signals can the BMXDDI1602 handle?

A: It provides 16 isolated discrete input channels for 24 VDC signals. Each channel has a green diagnostic LED for input-status identification.

Q: Which proximity sensors are compatible with the BMXDDI1602?

A: It supports 2-wire and 3-wire proximity sensors conforming to IEC 60947-5-2, with a specified sensor power supply range of 19-30 V. Verify the sensor output characteristics against the module's guaranteed input thresholds before commissioning.

Q: What are the input filtering and voltage threshold specifications?

A: The typical DC filtering time is 4 ms, and the maximum is 7 ms. The guaranteed ON-state thresholds are at least 11 V and 2 mA, while the guaranteed OFF-state thresholds are no more than 5 V and 1.5 mA.

Other Attributes

• Series：Modicon Quantum 
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items 

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