Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | AI 8xU/I/RTD/TC ST |
| Analog input channels | 8; > +60 °C max. 2x ±20 mA or 4x ±10 V or 4x RTD permissible |
| Resolution with overrange | 16 bit |
| Rated supply | 24 V DC |
| Permissible supply range | 19.2 V to 28.8 V DC |
| Supported voltage ranges | 1 V to 5 V; -1 V to +1 V; -10 V to +10 V; -2.5 V to +2.5 V; -250 mV to +250 mV; -5 V to +5 V; -50 mV to +50 mV; -500 mV to +500 mV; -80 mV to +80 mV |
| Supported current ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Basic error limit at 25 °C | 0.1% for voltage, current and resistance relative to input range |
| Common mode voltage, max. | 10 V |
Applications
- Analog signal acquisition: Measures voltage, current, resistance, RTD and thermocouple signals through its analog input channels.
- Signal diagnostics: Performs supply-voltage monitoring, wire-break detection, limit value alarms and overflow/underflow detection for supported input types.
Key Features
- Analog input channels: 8 analog input channels; voltage and current measurement use 8 channels, while resistance and resistance thermometer measurement use 4 channels.
- Supported signals: Supports 1 V to 5 V, -1 V to +1 V, -10 V to +10 V, -2.5 V to +2.5 V, -250 mV to +250 mV, -5 V to +5 V, -50 mV to +50 V, -500 mV to +500 mV, -80 mV to +80 mV, 0 to 20 mA, -20 mA to +20 mA, 4 mA to 20 mA, resistance ranges, RTD types and thermocouple types B, E, J, K, N, R, S and T.
- Resolution and accuracy: Resolution with overrange is 16 bit. Collected product accuracy is 0.3%; the basic error limit at 25 °C is 0.1% for voltage, current and resistance relative to the input range.
- Diagnostics and alarms: Has diagnostics, diagnostic and limit value alarms, supply-voltage monitoring, wire-break detection for 1 V to 5 V, 4 mA to 20 mA, TC, R and RTD, overflow/underflow detection, and RUN, ERROR, PWR and channel-status LEDs.
- Supply and protection: Rated supply is 24 V DC with a permissible range of 19.2 V to 28.8 V and reverse polarity protection. Common mode voltage is limited to 10 V.
- Connection and installation items: Includes an infeed element, shielding bracket and shield terminal. Shielded cable length is max. 800 m for U/I, 200 m for R/RTD, and 50 m for TC.
Frequently Asked Questions
1. What input signals does Siemens 6AG1531-7KF00-7AB0 support?
It supports voltage, current, resistance, RTD and thermocouple measurement, including 1 V to 5 V, 4 mA to 20 mA, resistance ranges, RTD types and thermocouple types B, E, J, K, N, R, S and T.
2. How many analog channels does this module have?
It has 8 analog input channels. At > +60 °C, max. 2x ±20 mA or 4x ±10 V or 4x RTD is permissible.
3. What supply does the module require?
The rated supply is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC and reverse polarity protection.
4. What diagnostics are available?
It has diagnostics, diagnostic and limit value alarms, supply-voltage monitoring, supported wire-break detection, overflow/underflow detection, and RUN, ERROR, PWR and channel-status LEDs.
5. What is included for shielded installation?
The configuration includes an infeed element, shielding bracket and shield terminal. Shielded cable length is max. 800 m for U/I, 200 m for R/RTD, and 50 m for TC.
