Schneider Electric BMXAMI0800RU Modicon X80 Analog Input Module

Configured for high-speed analog signal acquisition in the Modicon X80 I/O platform, the Schneider Electric BMXAMI0800RU (BMXAMI0800 analog input module) provides 8 non-isolated analog input channels for voltage and current measurement. It mounts on Modicon X80 backplanes and supports Modicon M340 and Modicon M580 controllers.

Hardware Specifications

Modicon X80 Analog Signal Processing

The BMXAMI0800RU provides eight analog acquisition channels within a single Modicon X80 module position. Voltage and current signals are converted with 16-bit A/D conversion and a stated resolution of 15 bits + sign. The module supports voltage ranges from +/-10 V to 1...5 V and current ranges from +/-20 mA to 4...20 mA.

The fast read cycle is defined as 1 ms plus 1 ms for each active channel. With all 8 channels active, the stated nominal read cycle is 9 ms. First-order digital filtering is provided for the acquired values.

The module specifies a minimum crosstalk attenuation of 80 dB and common mode rejection of 100 dB. These parameters define the signal separation and common-mode rejection characteristics of the analog acquisition circuit.

Conformal Coating and Backplane Integration

The RU version is specified with conformal coating for harsh-environment protection. The module mounts directly on a Modicon X80 backplane and interfaces with field wiring through a 28-way removable terminal block or FTB pre-wired cable.

The provided data identifies the input channels as non-isolated between channels while also specifying 1400 V DC isolation between channels and ground and between channels and the bus. Installation documentation should therefore be checked against the exact hardware revision and wiring configuration before applying channel-to-channel isolation assumptions.

Frequently Asked Questions

Q: How many analog channels does the BMXAMI0800RU provide?
A: It provides 8 analog input channels.

Q: What signal ranges are supported?
A: Voltage ranges include +/-10 V, +/-5 V, 0...10 V, 0...5 V, and 1...5 V. Current ranges include +/-20 mA, 0...20 mA, and 4...20 mA.

Q: What is the stated power consumption?
A: The module consumes 0.90 W typical and 1.10 W maximum at 24 VDC, with an additional stated 3.3 VDC consumption of 0.32 W typical and 0.48 W maximum.

Field Installation Guidelines

Install the BMXAMI0800RU on the specified Modicon X80 backplane and secure the module before connecting field wiring. Use the specified 28-way removable terminal block or compatible FTB pre-wired cable interface.

Keep analog signal wiring separated from high-current power conductors and switching circuits where practical. Maintain appropriate cable routing and shielding practices for low-level analog signals. Terminate cable shields according to the control-system grounding design and the applicable installation documentation.

Verify the selected voltage or current input range before commissioning each channel. For current inputs requiring an external shunt or specified wiring arrangement, verify the resistor value and wiring configuration before applying the field signal.

The module has IP20 protection and a stated operating range of 0...60 deg C. Confirm cabinet ventilation, humidity control, vibration conditions, and installation altitude against the specified environmental limits before commissioning.