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AI 8xTC Iso 16bit
Part No: 600-254-4AH22
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Analog input module - AI 8 x TC, Iso., 16 Bit

Characteristics
• 8 inputs
• Channels electrically isolated from each other and from the backplane bus
• 8 process input words, 8 process output words (for temperature compensation)
• Measuring range: ±80 mV
• Supported thermocouples: E, J, K, N, R, S, T, B, C, L
• Measurement resolution: up to 15 bits + sign
• External or internal temperature compensation
• Diagnostic messages
• Limit value alarms for each channel
• A bi-color LED (blue/red) indicates the modules operating status and any malfunctions
• Red/green bi-color LEDs (one for each channel) indicate the channels states
Parameters for the module
• Diagnostic alarm: On | Off
• Overflow / underflow diagnosis: On | Off
• Representation values: SIMATIC* S7 | SIMATIC* S5 (for ±80 mV only)
• Temperature unit: Celsius x 10 | Fahrenheit x 10 | Kelvin x 10

Parameters for each channel
• Wire break detection: On | Off
• Interference frequency suppression: None | 10 Hz | 50 Hz | 60 Hz | 400 Hz
• Measuring ranges: ±80 mV
• Thermocouples: E | J | K | N | R | S | T | B | C | L
• Temperature compensation: Internal | External | Process data-based
• Limit value alarms enabled: On | Off
• Upper/lower limit: 16-bit analog value (±27648)

Channel LED signals
Flashing red light Parameter assignment error on channel
Solid red light Reading overflow/underflow or wire break
Flashing green light Reading within overrange
Solid green light Channel configured, normal reading
Off Channel disabled or module not yet configured