Product information
Overview
Applications
- Voltage measurement: The module supports voltage measurement through its analog inputs.
- Current measurement: The module supports current measurement as a 2-wire transducer with external transmitter current supply and as a 4-wire transducer.
Key Features
- 8 isolated analog inputs: The SM 331 has 8 analog inputs with potential separation between channels, in groups of 2, and between channels and the backplane bus.
- Supported input ranges: Rated input ranges include 1 V to 5 V, -10 V to +10 V, -5 V to +5 V, 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
- 16 bit resolution: Resolution with overrange is max. 16 bit including sign; integration time is parameterizable at 23 / 72 / 83 / 95 ms.
- Voltage and current measurement: The module supports voltage measurement, current measurement as a 2-wire transducer with external transmitter current supply, and current measurement as a 4-wire transducer.
- Diagnostics and alarms: Parameterizable diagnostics, diagnostic alarms, limit value alarms, hardware interrupts on channels 0 to 7, and readable diagnostic information are supported.
- 40-pin connection: The required front connector is 40-pin. Dimensions are 40 mm width, 125 mm height, and 117 mm depth.
Technical Summary
| Product lifecycle | Product cancellation |
|---|---|
| Analog inputs | 8 |
| Rated supply | 24 V DC |
| Supported voltage ranges | 1 V to 5 V; -10 V to +10 V; -5 V to +5 V |
| Supported current ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Resolution | Max. 16 bit including sign |
| Conversion time | 10 ms (4-channel mode); 95/83/72/23 ms (8-channel mode) |
| Front connector | 40-pin |
Frequently Asked Questions
What is Siemens 6ES7331-7NF10-0AB0?
It is a SIMATIC S7-300 SM 331 isolated analog input module with 8 AI.
Which input ranges does the module support?
Supported rated ranges are 1 V to 5 V, -10 V to +10 V, -5 V to +5 V, 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
What connector is required?
The required front connector is 40-pin.
Does it support thermocouples or resistance thermometers?
No. Thermocouple and resistance thermometer input ranges are not supported.
How can I request a quotation for this configuration?
Send the required quantity, destination, and project-list context for quotation review.
