Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | Isolated analog input module |
| Analog input channels | 2 |
| Resolution with overrange | 15 bit |
| Rated resolution | Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign |
| Load voltage L+ | 24 V DC |
| Supported input types | Voltage, current, thermocouple, resistance thermometer, resistance |
| Integration time | 2,5 / 16,67 / 20 / 100 ms |
| Basic conversion time | 3 / 17 / 22 / 102 ms |
| Front connector | 20-pin |
Applications
- Analog signal measurement: Measures voltage and current signals through voltage inputs, 2-wire current transducers, and 4-wire current transducers.
- Temperature measurement: Measures thermocouple and resistance thermometer signals, including Type E, J, K, N, Ni 100, and Pt 100.
- Resistance measurement: Measures resistance with two-wire, three-wire, or four-wire connections.
Key Features
- Isolated analog inputs: 2 analog inputs support voltage, current, thermocouple, resistance thermometer, and resistance measurement. The inputs are isolated from the backplane bus and electronics power supply.
- Supported signal ranges: Supported rated ranges include 1 V to 5 V, -1 V to +1 V, -10 V to +10 V, 0 to 20 mA, 4 mA to 20 mA, Ni 100, Pt 100, and 0 to 150/300/600 ohms.
- Resolution and timing: Resolution with overrange is 15 bit; parameterizable integration times are 2,5 / 16,67 / 20 / 100 ms, with basic conversion times of 3 / 17 / 22 / 102 ms.
- Diagnostics and alarms: The module has parameterizable diagnostics, diagnostic and limit value alarms, readable diagnostic information, and a red group error SF LED.
- Supply and protection: Load voltage L+ is 24 V DC with reverse polarity protection. Input current is max. 30 mA from L+ without load and max. 50 mA from the backplane bus 5 V DC.
- Connection and dimensions: The required front connector is 20-pin. Dimensions are 40 mm wide, 125 mm high, and 120 mm deep; weight is approx. 250 g.
Frequently Asked Questions
1. How many analog inputs does Siemens 6ES7331-7KB02-0AB0 have?
It has 2 analog inputs.
2. Which signal types does 6ES7331-7KB02-0AB0 support?
It supports voltage, current, thermocouple, resistance thermometer, and resistance measurement.
3. What resolution and integration times are available?
Resolution with overrange is 15 bit. Parameterizable integration times are 2,5 / 16,67 / 20 / 100 ms.
4. Which connector and supply does the module use?
It uses a 20-pin front connector and requires 24 V DC load voltage L+.
