Parameters for the TB20 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 1 … 5 V): On | Off
- Interference frequency suppression: None | 10 Hz | 50 Hz | 60 Hz | 400 Hz
- Measuring ranges: Deactivated | 0 … 10 V | 1 … 5 V | ?10 V | ?5 V | ?2.5 V
- Limit value alarms enabled: On | Off
- Upper/lower limit: 16 bit analog value (?27648)
- Measuring ranges 0 … 10 V, 1 … 5 V, ?10 V, ?5 V, ?2.5 V, individually configurable for each channel
- Measurement resolution: 11 bit + sign
- Diagnostic messages
- Wire break detection (for 1 … 5 V)
- Limit value alarms for each channel
- A bi-color LED (blue/red) indicates the module operating status and any malfunctions
- 2 analog inputs for measuring voltage, electrically isolated from the backplane bus
- 2 process input words
Part of the Helmholz decentralized fieldbus I/O system – TB20




