Description

Schneider Electric BMXSDO0802 Modicon X80 Discrete Output Module

The Schneider Electric BMXSDO0802, also cataloged as the Modicon X80 discrete output module, operates as a dedicated hardware component for solid-state positive safety logic switching within Modicon automation controller platforms.

Hardware Specifications

Parameter	Specification
Model	BMXSDO0802
Brand	Schneider Electric
Origin	France
Weight	0.12 kg
Dimensions	Not specified
OperatingTemp	Not specified
PowerConsumption	4.4 W maximum power dissipation
Discrete Output Number	8
Discrete Output Type	Solid state (Not isolated)
Discrete Output Logic	Positive
Discrete Output Voltage	24 V DC (19...30 V DC)
Discrete Output Current	0.5 A nominal
Current per Channel	0.625 A
Maximum Current per Module	10 A
Maximum Leakage Current	0.5 mA at state 0
Maximum Voltage Drop	<1.2 V at state 1
Insulation Resistance	> 10 MOhm at 500 V DC
Response Time on Output	1.2 ms
Paralleling of Outputs	Yes (2 maximum)
Typical Current Consumption	264 mA at 3.3 V DC, 15 mA at 24 V DC
MTBF Reliability	401208 H
Output Overload Protection	Current limiter and electronic circuit breaker (1.5 In < Id < 2 In)
Output Overvoltage Protection	Transil diode
Output Short-Circuit Protection	External 2 A fuse required
Reverse Polarity Protection	Reverse mounted diode
Voltage Detection Threshold	< 14 V DC (sensor fault), > 18 V DC (sensor OK)
Maximum Tungsten Load	6 W
Switching Frequency	0.5/LI^2 Hz
Load Impedance Ohmic	<= 48 Ohm
Status LED Indicators	1 LED green (RUN), 1 LED green per channel (diagnostic), 1 LED red (ERR), 1 LED red (I/O)

Backplane Bus Communication Velocity

The module interfaces directly with the Modicon X80 backplane, utilizing high-speed bus communication synchronization to update the status of the 8 solid-state outputs. This deterministic bus integration minimizes internal propagation latency and ensures synchronous logic execution matching the main processor scan cycle.

Frequently Asked Questions

Q: What is the maximum configuration allowed when paralleling outputs on this module?

A: A maximum of 2 outputs can be connected in parallel to handle higher current loads, provided that the total current draw does not exceed the overall module limit of 10 A.

Q: What mechanisms handle overcurrent and short-circuit faults on the channels?

A: The module utilizes an internal current limiter and an electronic circuit breaker calibrated between 1.5 In and 2 In for overload states. Short-circuit conditions require the installation of an external 2 A fuse per specified guidelines.

Field Installation Guidelines

• Install a mandatory 2 A external fast-acting fuse in series with the output channels to ensure proper short-circuit protection and prevent physical damage to the solid-state circuitry.
• Route all 24 V DC field wiring away from high-voltage AC cables to minimize cross-talk and electromagnetic interference on the non-isolated positive logic channels.
• Verify that the total current load across all 8 channels does not exceed the 10 A maximum rating under peak operational conditions to prevent thermal overstress.

Specifications

• Brand: Schneider Electric

Advantages

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