Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Analog input channels | 8 |
| Resistance measurement | 8 channels |
| Supported resistance thermometers | Cu 10; Ni 100; Ni 120; Ni 200; Ni 500; Ni 1000; Pt 100; Pt 200; Pt 500; Pt 1000 |
| Resistance ranges | 0 to 150 ohms; 0 to 300 ohms; 0 to 600 ohms |
| Resolution with overrange | 16 bit; Two's complement |
| Basic conversion time | up to 4 channels: 10 ms per module, over 5 channels: 190 ms per module, 8 channels: 80 ms |
| Rated load voltage L+ | 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 |
| Diagnostic functions | Parameterizable diagnostics, diagnostic alarm, limit value alarm, and hardware interrupt on channels 0 to 7 |
| Product lifecycle | Product cancellation |
Applications
- Resistance measurement: Measures resistance and resistance-thermometer signals through 2-wire, 3-wire, or 4-wire connections.
Key Features
- Analog input channels: 8 analog inputs, all supporting resistance measurement.
- Supported resistance sensors: Supports Cu 10, Ni 100/120/200/500/1000, Pt 100/200/500/1000, and resistance ranges of 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms.
- Signal connections: Supports 2-wire resistance measurement without resistance correction, plus 3-wire and 4-wire connections.
- Resolution and conversion: Resolution with overrange: 16 bit; Two's complement. Basic conversion time is 10 ms per module for up to 4 channels, 190 ms per module over 5 channels, and 80 ms for 8 channels.
- Diagnostics and isolation: Parameterizable diagnostics, diagnostic and limit value alarms, hardware interrupts on channels 0 to 7, and potential separation between channels, in groups of 2.
- Supply and connector: Rated load voltage L+: 24 V DC. Reverse polarity protection is provided, and the required front connector is 40-pin.
Frequently Asked Questions
1. How many analog inputs does Siemens 6ES7331-7PF01-0AB0 have?
It has 8 analog inputs, all supporting resistance measurement.
2. Which resistance thermometers are supported?
It supports Cu 10, Ni 100/120/200/500/1000, and Pt 100/200/500/1000.
3. Which connection methods are supported for resistance measurement?
It supports 2-wire measurement without resistance correction, as well as 3-wire and 4-wire connections.
4. What connector and supply does this module require?
It requires a 40-pin front connector and has a rated load voltage L+ of 24 V DC.
