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Schneider Electric BMXART0814 Modicon X80 Analog Input Module

The Schneider Electric BMXART0814, also cataloged as the BMXART0814 Analog Input Module, operates as a dedicated hardware component for low-level temperature signal acquisition within the Modicon X80 automation platform. The module provides eight isolated analog input channels supporting thermocouple and temperature probe measurement with sigma-delta conversion and integrated diagnostic indication.

Hardware Specifications

Parameter	Specification
Model	BMXART0814
Brand	Schneider Electric
Series	Modicon X80
Product Type	Analog Input Module
Analog Inputs	8 isolated channels
Input Level	Low level
Electrical Connection	Two 40-pin connectors
Analog/Digital Conversion	Sigma-delta, 16-bit
Analog Resolution	15 bits + sign
Supported Measurements	Thermocouple, temperature probe
Cold Junction Compensation	External Pt100 probe
Digital Filter	First-order digital filtering
Nominal Read Cycle	200 ms (thermocouple); 400 ms (temperature probe)
Permitted Input Overload	+/- 7.5 V with specified measurement ranges
Common Mode Rejection	120 dB at 50/60 Hz
Differential Mode Rejection	60 dB at 50/60 Hz
Status Indicators	RUN, channel diagnostic, ERR, I/O LEDs
Isolation	Channel-to-channel isolated
Operating Altitude	0 to 2000 m; up to 5000 m with derating
Operating Temp	0 to 60 degC
Storage Temp	-40 to 85 degC
Relative Humidity	5% to 95% at 55 degC, non-condensing
IP Rating	IP20
Vibration Resistance	3 gn
Shock Resistance	30 gn
Certifications	CE, UL, CSA, EAC, RCM, Merchant Navy
Standards	EN 61131-2, EN 61000-6-2, EN 61000-6-4, EN 61010-2-201
Environmental Classification	IEC 60721-3-3 Class 3C3, 3C4
Weight	0.165 kg
Dimensions	Not specified
Power Consumption	Not specified
Origin	Not specified

PLC Backplane Communication and I/O Density

The BMXART0814 exchanges measurement data through the Modicon X80 backplane architecture. Eight isolated input channels allow temperature acquisition without increasing signal interaction between adjacent channels. Sigma-delta conversion and first-order digital filtering are implemented to process low-level analog inputs before transmission to the controller over the backplane bus.

Frequently Asked Questions

Q: Does the module provide channel isolation?

A: Yes. Each of the eight analog input channels is electrically isolated, reducing interference between measurement circuits.

Q: Is cold junction compensation integrated into the module?

A: The module performs cold junction compensation using an external Pt100 probe connected according to the application requirements.

Q: Can the module measure both thermocouples and temperature probes?

A: Yes. The specified nominal conversion cycle is 200 ms for thermocouple measurement and 400 ms for temperature probe measurement.

Field Installation Guidelines

• Install the module only in a compatible Modicon X80 rack with power removed before insertion or removal unless the system documentation explicitly permits online replacement.
• Route thermocouple and low-level analog wiring separately from power and motor cables to minimize induced electrical noise.
• Connect cable shields according to the plant grounding practice and avoid multiple shield grounding points unless specified by the control system design.
• Install the external Pt100 sensor for cold junction compensation as specified by the wiring documentation.
• Maintain adequate enclosure ventilation so the ambient operating temperature remains within the specified 0 to 60 degC range.

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