Product Description
Key Features
- SIMATIC S7-300 analog input: SM 331 with 8 isolated analog inputs and single-point grounding, 60 V common.
- Supported input ranges: Voltage: 1 V to 5 V, -10 V to +10 V, and -5 V to +5 V. Current: 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
- Resolution and conversion: Resolution with overrange: 16 bit maximum. Basic conversion time: 10 ms in 4-channel mode and 95/83/72/23 ms in 8-channel mode.
- Power and protection: Load voltage L+: 24 V DC rated value, with reverse polarity protection. Input current from load voltage L+ without load: 200 mA maximum.
- Signal connections: Supports voltage measurement, current measurement as a 2-wire transducer with external transmitter and current supply, and current measurement as a 4-wire transducer.
- Installation and lifecycle: Required front connector: 40-pin. Dimensions: 40 mm × 125 mm × 117 mm; weight approximately 272 g. Product lifecycle: Product cancellation.
Applications
- Voltage measurement: Supports voltage measurement.
- Current measurement: Supports current measurement as a 2-wire transducer and as a 4-wire transducer.
Technical Summary
| Product identity | 6ES7331-7NF10-0AB0; SIMATIC S7-300 analog input SM 331 |
|---|---|
| Analog inputs | 8, isolated |
| Load voltage L+ | 24 V DC rated value; reverse polarity protection: Yes |
| Voltage input ranges | 1 V to 5 V; -10 V to +10 V; -5 V to +5 V |
| Current input ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Resolution with overrange | 16 bit maximum |
| Basic conversion time | 10 ms (4-channel mode); 95/83/72/23 ms (8-channel mode) |
| Input resistance | 10 MΩ for voltage ranges; 250 Ω for current ranges |
| Front connector | 40-pin |
| Product lifecycle | Product cancellation |
Frequently Asked Questions
What order number should be confirmed for this analog input module?
Confirm the nameplate order number 6ES7331-7NF10-0AB0.
How many analog inputs does 6ES7331-7NF10-0AB0 have?
It has 8 isolated analog inputs.
Which front connector is required?
A 40-pin front connector is required.
Does this configuration support thermocouples or resistance thermometers?
It is without thermocouple and resistance thermometer input ranges.
