Product Description
Key Features
- Analog input identity: SIMATIC S7-300 analog input SM 331 with 8 isolated analog inputs and 13-bit resolution.
- Supported input types: Supports voltage, current, resistance, Pt100, Ni100, Ni1000, LG-Ni1000, PTC and KTY inputs; thermocouple input is not supported.
- Input ranges: Voltage ranges include 0 to +10 V, 1 V to 5 V, -1 V to +1 V, -10 V to +10 V, -5 V to +5 V, -50 mV to +50 mV and -500 mV to +500 mV. Current ranges include 0 to 20 mA, -20 mA to +20 mA and 4 mA to 20 mA.
- Conversion and integration: Integration time is parameterizable at 60 / 50 ms; basic conversion time is 66 / 55 ms. Interference voltage suppression is for 50 / 60 Hz.
- Signal connections: Supports voltage measurement, current measurement with 2-wire transducer with external supply, 4-wire current measurement, and two-wire, three-wire or four-wire resistance measurement.
- Connector and lifecycle: Requires a 40-pin front connector. Product lifecycle: Product cancellation.
Applications
- Voltage measurement: Supports connection of signal encoders for voltage measurement.
- Current measurement: Supports current measurement with 2-wire transducers with external supply and 4-wire transducers.
- Resistance measurement: Supports resistance measurement with two-wire, three-wire and four-wire connections.
Technical Summary
| Product function | Analog input SM 331 for SIMATIC S7-300 |
|---|---|
| Analog inputs | 8; isolated from the backplane bus, not isolated between channels |
| Resolution with overrange | 13 bit including sign |
| Supported input types | Voltage, current, resistance, Pt100, Ni100, Ni1000, LG-Ni1000, PTC and KTY |
| Voltage input ranges | 0 to +10 V; 1 V to 5 V; -1 V to +1 V; -10 V to +10 V; -5 V to +5 V; -50 mV to +50 mV; -500 mV to +500 mV |
| Current input ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Integration time | Parameterizable; 60 / 50 ms |
| Basic conversion time | 66 / 55 ms |
| Input current from backplane bus | 5 V DC, max. 90 mA |
| Required front connector | 40-pin |
| Product lifecycle | Product cancellation |
Frequently Asked Questions
What exact order number should be checked for this analog input module?
The exact order number is 6ES7331-1KF02-0AB0.
How many analog inputs does 6ES7331-1KF02-0AB0 have?
It has 8 analog inputs.
Which signal connections does the module support?
It supports voltage measurement, 2-wire current measurement with external supply, 4-wire current measurement, and two-wire, three-wire or four-wire resistance measurement.
Which front connector is required?
A 40-pin front connector is required.
What lifecycle data is recorded for this item?
Product lifecycle: Product cancellation.
