Configured for high-speed signal acquisition in Modicon X80 PLC systems, the Schneider Electric BMXAMI0800, also cataloged as the BMXAMI0800 analog input module, provides direct physical and electrical execution of current and voltage measurements for process automation tasks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | BMXAMI0800 |
| Brand | Schneider Electric |
| Origin | France |
| Weight | 0.165 kg |
| Dimensions | Standard X80 module form factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 0.55 W @ 24 VDC (typical), 1.01 W (max); 0.32 W @ 3.3 VDC (typical), 0.48 W (max) |
| Analog Inputs | 8 non-isolated channels |
| Input Types | +/- 20 mA, 0-20 mA, 4-20 mA; +/- 10 V, +/- 5 V, 0-10 V, 0-5 V, 1-5 V |
| Resolution | 16-bit conversion, 15 bits + sign |
| Input Impedance | 10 MOhm |
| Overload Capacity | +/- 30 mA (current ranges), +/- 30 V (voltage ranges) |
| Internal Conversion Resistor | 250 Ohm, 0.1 % precision, 15 ppm/deg C |
| Filter Type | First-order digital filtering |
| Fast Read Cycle Time | 1 ms + 1 ms per channel used |
| Isolation | Non-isolated between channels |
| Electrical Connection | 28-way single connector |
Backplane Bus Communication Velocity Licences
The BMXAMI0800 interfaces directly with the X80 backplane bus, utilizing licensed firmware profiles to ensure deterministic data exchange under defined scan cycles. Communication velocity is governed by the backplane protocol, which supports synchronous updates aligned with the controller’s task scheduling. Firmware flash compatibility must be maintained between the module and the hosting processor to prevent timing mismatches during high-speed acquisitions.
Frequently Asked Questions
Q: Does the BMXAMI0800 support hot-swapping while the PLC system is operational?
A: No. The module must be inserted or removed only after power-down of the X80 rack to avoid backplane communication errors and potential damage to the internal conversion circuitry.
Q: What is the effect of using fewer than eight channels on the fast read cycle time?
A: The total update time decreases proportionally, calculated as 1 ms plus 1 ms multiplied by the number of active channels configured in the software.
Q: Is channel-to-channel galvanic isolation present on this module?
A: No. All channels share a common reference; external isolation devices are required if galvanic separation is necessary.
Field Installation Guidelines
Mount the BMXAMI0800 securely onto the X80 rack using the integrated locking mechanism. Ensure that all analog input wiring uses shielded twisted-pair cables, with the shield terminated at the rack ground point to minimize electromagnetic interference. Maintain separation from high-power switching lines to reduce crosstalk. Verify torque specifications for terminal screws according to Schneider Electric’s mechanical installation manual to prevent loose connections under vibration conditions.
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