Characteristics

• 2 analog inputs for measuring voltage, electrically isolated from the backplane bus
• 2 process input words
• Measuring ranges: 0-24 V, ±24 V, individually configurable for each channel
• Measurement resolution: up to 12 bits + sign
• Diagnostic messages
• Limit value alarms for each channel
• A bi-color LED (blue/red) indicates the module’s operating status and any malfunctions

Parameters for the module

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

Parameters for each channel

• Interference frequency suppression: None | 10 Hz | 50 Hz | 60 Hz | 400 Hz
• Measuring ranges: Disabled | 0-24 V | ±24 V
• Limit value alarms enabled: On | Off
• Upper/lower limit: 16-bit analog value (±27648)

Orderdata

Product	Ordernumber
Analog input module - AI 2 x U, ±24 V, 0-24 V, 12 Bit	600-252-4CB01

* SIMATIC is a registered trademark of Siemens AG.