Product Description
Key Features
- 16 isolated analog inputs: The module has 16 analog inputs, including 16 for voltage/current measurement and 8 for resistance measurement.
- Multiple input types: Supported input ranges include voltage, current, thermocouple, resistance thermometer and resistance.
- 16-bit resolution: Resolution with overrange, including sign, is 16 bit.
- Diagnostics and alarms: The module has parameterizable diagnostics, diagnostic alarms, limit value alarms and hardware interrupts.
- Flexible signal connections: Signal encoders can use voltage measurement, 2-wire or 4-wire current measurement, and two-, three- or four-wire resistance measurement.
- S7-400 lifecycle data: Product lifecycle: Announcement of product phase-out.
Applications
- Voltage measurement: The module supports voltage measurement across its analog input ranges.
- Current measurement: The module supports current measurement, including 2-wire and 4-wire transducer connections.
- Resistance and temperature measurement: The module supports resistance, resistance thermometer, thermocouple and Pt100 measurement.
Technical Summary
| Product | 6ES7431-7QH00-0AB0 |
|---|---|
| Family | SIMATIC S7-400, SM 431 |
| Analog inputs | 16 isolated; 16 for voltage/current measurement; 8 for resistance measurement |
| Resolution | 16 bit with overrange, including sign |
| Supply | 24 V DC load voltage L+, only required for supplying 2-wire transmitters |
| Input current | 400 mA max. from load voltage L+ without load, for 16 connected, fully controlled 2-wire transmitters; 700 mA max. from backplane bus 5 V DC |
| Input resistance | 1 MΩ for voltage, thermocouple, resistance thermometer and resistance ranges; 50 Ω for current ranges |
| Signal connections | Voltage; 2-wire or 4-wire current; two-, three- or four-wire resistance |
| Diagnostics | Parameterizable diagnostics, diagnostic alarm, limit value alarm, hardware interrupt; diagnostic information readable |
| Isolation | Between analog inputs and backplane bus; between analog inputs and load voltage L+; not between channels |
Frequently Asked Questions
What exact order number should be confirmed for this Siemens analog input module?
Confirm the complete order number 6ES7431-7QH00-0AB0 on the nameplate.
How many analog inputs does 6ES7431-7QH00-0AB0 have?
It has 16 isolated analog inputs, with 16 for voltage/current measurement and 8 for resistance measurement.
Which signal connections does the module support?
It supports voltage measurement, 2-wire or 4-wire current measurement, and two-, three- or four-wire resistance measurement.
What lifecycle information is supplied for this configuration?
The supplied lifecycle information is Announcement of product phase-out.
