Specifications Parameter Category Details Manufacturer & Series Schneider Electric, Modicon TM5 System (Essential Line) Complete Model Number TM5SAI2L Module Type 2-channel Analog Input Module Compatible Controllers Primarily Modicon M251 Logic Controllers (via a TM5 bus base unit), also compatible with other PLCs supporting the TM5 I/O system. Number of Channels 2 Input Signal Type Current Input Supported Current Ranges 0 to 20 mA and 4 to 20 mA (software configurable per channel). Resolution 12 bits (including sign) Input Impedance Typically 250 Ω Accuracy Typically ±0.3% of full scale (at 25°C / 77°F) Common Mode Rejection Ratio (CMRR) > 90 dB at 50/60 Hz Isolation Channel-to-channel isolation: Yes Channel-to-backplane (bus) isolation: 500V AC Conversion Time per Channel Typically 3 ms Data Format • For 4-20 mA range: 0 to 27648 (corresponding to 4mA = 0, 20mA = 27648) • For 0-20 mA range: 0 to 27648 (corresponding to 0mA = 0, 20mA = 27648) Status Indicators • Module Status LED (Bicolor): RUN/ERR (Green/Red) • Channel Status LEDs (Green, one per channel): Indicates channel activity or fault. Connection Removable screw terminal block (front connector) for field wiring. Power Supply Powered via the TM5 base unit from the 24V DC system power. Power Consumption from 24V DC Typically 50 mA (via the base unit) Operating Temperature 0°C to +55°C Storage Temperature -25°C to +70°C Relative Humidity 5% to 95% (non-condensing) Protection Rating IP20 (for installation inside an enclosure) Mounting Mounts on a compatible TM5 bus base unit (e.g., TM5ABD1, TM5ABD2), which is then mounted on a DIN rail (35mm). Configuration Automatically detected and configured by the controller's programming software (EcoStruxure Machine Expert - Basic for M251). Channel type and range are set in software. Typical Applications Reading process variables from 4-20 mA transmitters for temperature, pressure, level, flow, or analog position feedback in machinery, process control, and building automation.