Product Overview
Technical Summary
| Product designation | SIMATIC S7-300 analog input SM 331 |
|---|---|
| Analog inputs | 8 |
| Resistance measurement | Resistance thermometers and resistors |
| Load voltage L+ rated value | 24 V DC |
| Required front connector | 40-pin |
| Potential separation | Between channels, in groups of 2; between channels and backplane bus; between channels and electronics power supply |
| Resolution with overrange | 16 bit; Two's complement |
| Product lifecycle | Product cancellation |
Key Features
- Product designation: SIMATIC S7-300 analog input SM 331, isolated, with 8 analog inputs.
- Resistance measurement: Supports resistance thermometers and resistors, including Cu 10, Ni 100, Ni 120, Ni 200, Ni 500, Ni 1000, Pt 100, Pt 200, Pt 500, Pt 1000, and 0 to 600 ohms.
- Connection options: Supports 2-wire resistance measurement without resistance correction, 3-wire connection, and 4-wire connection.
- Supply and protection: Load voltage L+ rated value: 24 V DC. Reverse polarity protection: Yes. Power loss, typ.: 4.6 W.
- Conversion and diagnostics: Resolution with overrange: 16 bit; Two's complement. Integration time is parameterizable. Diagnostics, diagnostic alarm, limit value alarm, and hardware interrupt are parameterizable.
- Connector and dimensions: Required front connector: 40-pin. Dimensions: 40 mm width, 125 mm height, and 120 mm depth.
Applications
- Resistance measurement: Measures resistance thermometers and resistors through 2-wire, 3-wire, or 4-wire connections.
Frequently Asked Questions
Which specifications distinguish the 6ES7331-7PF01-0AB0 variant?
Check the SIMATIC S7-300 analog input SM 331 designation, 8 analog inputs, isolated channels, resistance measurement capability, 2-/3-/4-wire connections, and 40-pin front connector.
What connector and dimensions should be checked?
Check the required 40-pin front connector and dimensions of 40 mm width, 125 mm height, and 120 mm depth.
What details are needed to request a quotation?
Provide the complete 6ES7331-7PF01-0AB0 code, required quantity, and destination.
