Description

Schneider Electric BMXSDI1602 Modicon X80 Discrete Input Module

The Schneider Electric BMXSDI1602, also cataloged as the BMXSDI1602 Discrete Input Module, operates as a dedicated hardware component for safe discrete signal acquisition within Modicon X80 automation platforms.

Hardware Specifications

Parameter	Specification
Model	BMXSDI1602
Brand	Schneider Electric
Origin	France
Weight	0.115 kg
Discrete Input Number	16
Discrete Input Type	Not isolated, current sink (logic positive)
Discrete Input Voltage	24 V DC
Discrete Input Current	3.2 mA
Sensor Power Supply	19...30 V
Voltage State 1 Guaranteed	>= 11 V
Current State 1 Guaranteed	>= 2 mA
Voltage State 0 Guaranteed	<= 5 V
Current State 0 Guaranteed	<= 1.5 mA
Input Impedance	7500 Ohm
Insulation Resistance	> 10 MOhm 500 V DC
Maximum Power Dissipation	3.57 W
DC Typical Filtering Time	6 ms
DC Maximum Filtering Time	6 ms
Paralleling of Inputs	Yes
Typical Current Consumption	256 mA at 3.3 V DC, 100 mA at 24 V
MTBF Reliability	275940 H
Protection Type	Reverse polarity protection
External Overload Protection	0.5 A fast blow
Voltage Detection Threshold	< 14 V DC sensor fault, > 18 V DC sensor OK
IP Degree of Protection	IP20
Product Certifications	ATEX, EAC, CSA, TÜV, Merchant Navy, UL, RCM
Standards	EN/IEC 61131-2, EN/IEC 61010-2-201, UL 61010-2-201, CSA C22.2 No 61010-2-201
Dielectric Strength	1500 V AC at 50/60 Hz 1 minute, primary/secondary
Vibration Resistance	3 gn
Shock Resistance	15 gn
Operating Temp	-25...60 degC
Storage Temp	-40...85 degC
Relative Humidity	5...95 % at 55 degC without condensation

Backplane Bus Communication Velocity and Density Scaling

This module interfaces directly with the Modicon X80 backplane, utilizing high-velocity bus communication protocol execution to ensure deterministic state transfers of the 16 input channels. The hardware topology implements structured I/O density scaling inside a single-slot form factor, maximizing rack space optimization without degrading thermal dissipation profiles. Channel scan synchronization matches the deterministic network cycle rates, ensuring safety-related digital input processing maintains high fidelity across the backplane bus architecture.

Frequently Asked Questions

• Q: What is the specific functional application of the sensor fault thresholds on this module?

  A: The module monitors external line conditions using embedded voltage detection thresholds. A sensor supply voltage drop below 14 V DC registers as a sensor fault condition, while a voltage stabilization above 18 V DC reports the sensor status as functional (OK).

• Q: Does the module require separate fusing for individual input channels?

  A: No, the module requires a centralized external overload protection device, specifically a 0.5 A fast-blow fuse, to protect the collective internal circuitry against overcurrent anomalies.

• Q: Are the 16 input channels electrically isolated from one another?

  A: No, the 16 discrete input channels are not isolated from each other. However, the module provides 1500 V AC primary-to-secondary dielectric insulation between the internal bus electronics and the field-side circuits.

Field Installation Guidelines

• Terminal Block Routing: Keep the 24 V DC discrete input signal wiring separated from high-voltage AC power cables and inductive drive wiring to minimize electromagnetic interference coupling.
• Grounding Protocols: The Modicon X80 rack must be connected to a low-impedance functional earth ground plate prior to module insertion. Field sensor shields must terminate at the specified ground bar inside the enclosure.
• Fuse Insertion: Ensure the mandatory 0.5 A fast-blow fuse is installed on the sensor distribution loop before powering up the field-side supply to mitigate damage from accidental wiring shorts.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems