Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Analog input channels | 2 |
| Supported input ranges | 0 to 20 mA; 4 mA to 20 mA |
| Input resistance | 50 Ω for 0 to 20 mA and 4 mA to 20 mA |
| Rated load voltage | 24 V DC |
| Transmitter supply | 15 V at 22 mA |
| Resolution with overrange, max. | 16 bit; 10 bit to 15 bit + sign |
| Basic conversion time | 2.5 / 16.67 / 20 / 100 (1 channel enabled); 7.5 / 50 / 60 / 300 (2 channels enabled) ms |
| Signal encoder connection | 2-wire and 4-wire transducers for current measurement |
| Operating error limit | 0.55 %; from 0/4 to 20 mA |
| Protection degree | IP20 |
Applications
- Analog current measurement: Measure current signals from 2-wire or 4-wire transducers using the supported 0 to 20 mA and 4 mA to 20 mA input ranges.
- Signal diagnostics: Detect overrange, wire-break, and short-circuit conditions in signal encoder cables with LED and signal indications.
- Limit monitoring: Use parameterizable limit value alarms on channels 0 and 1.
Key Features
- 2 analog current inputs: The module has 2 analog inputs for 0 to 20 mA and 4 mA to 20 mA signals, with 50 Ω input resistance for each range.
- HART communication: HART communication active is indicated by a green LED (H).
- Transmitter supply: Transmitter supply is present, with a rated value of 15 V at 22 mA, 29.6 V no-load voltage, and short-circuit proof operation at approximately 30 mA.
- Diagnostics and alarms: Diagnostics can be set in parameters and include a red LED and alarm message. Diagnostic, limit value, overrange, wire-break, and short-circuit indications are supported.
- Ex(i) protection characteristics: The module has Ex(i) protection characteristics for gas group IIC connecting terminals, including maximum values of Uo 26 V, Io 96.1 mA, Po 511 mW, Co 62 nF, and Lo 3 mH.
- Electrical separation and protection: The analog inputs are electrically separated from each other and from the backplane bus. Protection degree is IP20.
Frequently Asked Questions
1. What input signals does Siemens 6AG1331-7TB00-7AB0 support?
It supports 0 to 20 mA and 4 mA to 20 mA analog current signals on 2 inputs, with 50 Ω input resistance for each range.
2. How many analog inputs does the module have?
It has 2 analog inputs.
3. How can signal transducers be connected?
Current measurement supports 2-wire and 4-wire transducers.
4. What diagnostics are available?
The module supports parameterizable diagnostics and alarms, including overrange, wire-break, short-circuit, diagnostic alarm, and limit value alarm. Red LEDs and signal indications are provided.
5. What should be verified before requesting a quote?
Verify the 24 V DC rated load voltage, supported current range, shielded cable length up to 400 m, and the required Ex(i) terminal values for gas group IIC.
