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AI 4xI Iso 16bit
Part No: 600-250-7BD01
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4 Analogue inputs Current Isolated

AI 4 x I, 0/4-20 mA, ±20 mA, Iso., 16 Bit

Parameters for the module
• Diagnostic alarm: On | Off
• Overflow / underflow diagnosis: On | Off
• Representation values: SIMATIC* S7 | SIMATIC* S5


Parameters for each channel
• Wire break detection (only for 4 ... 20 mA): On | Off
• Interference frequency suppression: None | 10 Hz | 50 Hz | 60 Hz | 400 Hz
• Measuring ranges: Deactivated | 0 ... 20 mA | 4 ... 20 mA | ±20 mA
• 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

• Channels electrically isolated from each other and from the backplane bus
• Measuring ranges 0 ... 20 mA, 4 ... 20 mA, ±20 mA, individually configurable for each channel
• Measurement resolution: up to 15 bits + sign
• Diagnostic messages
• Wire break detection (for 4 ... 20 mA)
• Limit value alarms for each channel
• A bi-color LED (blue/red) indicates the module operating status and any malfunctions
• Red/green bi-color LEDs (one for each channel) indicate the channel status
• 4 analog inputs for measuring current
• 4 process input words

General information

Dimensions (DxWxH) 110 x 14 x 73 mm
Weight Approx. 80g

Number of inputs 4
Electrical isolation from the backplane bus
Electrical isolation Between the channels
Current draw Internal Max. 140 mA
Power dissipation Max. 1 W

Measuring ranges / load resistance 0 ... 20 mA / 50 ohms, 4 ... 20 mA / 50 ohms, ±20 mA / 50 ohms

Measuring method - Integration
Measurement resolution 15 bits + sign
Interference frequency suppression - None | 10 Hz | 50 Hz | 60 Hz | 400 Hz

Refresh rate / conversion rate:
The conversion time will depend on the interference frequency suppression:
None: 2.5 ms, 400 Hz: 8 ms, 60 Hz: 51 ms, 50 Hz: 60 ms, 10 Hz: 160 ms

Diagnoses - Upper measuring range limit exceeded (overflow), lower measuring range limit fallen below (underflow), wire break (for 4 ... 20 mA only), parameter assignment error

Process alarms - Upper and lower limit per channel

Error limits
Operational error limit in the entire temperature range ±0.2 % relative to the nominal range

Basic error limit at 25 °C > ±0.1 % relative to the nominal range

Temperature error > ±0.005 %/K relative to the nominal range

Linearity error > ±0.05 %/K relative to the nominal range

Repeating accuracy in steady state at 25 °C > ±0.05 %/K relative to the nominal range

Parameter configuration length - 24 Bytes

General error indicator - Red LED

Hot-swap capable - Yes

Ambient temperature - 0 °C … +60 °C

Transport and storage temperature -20 °C … +80 °C

Relative air humidity - 95 % r H without condensation

Protection rating -IP 20

Certifications - CE, UL

Surrounding Air Temperature - 0 °C … +60°C

Noise immunity - DIN EN 61000-6-2 EMC Immunity

Interference emission DIN EN 61000-6-4 EMC Emission

Vibration and shock resistance DIN EN 60068-2-8:2008 Vibration, DIN EN 60068-27:2010 Shock