Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | CPU 1211C AC/DC/relay |
| Onboard digital inputs | 6 DI; 24 V DC |
| Onboard relay outputs | 4 DO; resistive load up to 2 A |
| Onboard analog inputs | 2 AI; 0 to +10 V |
| Analog input resolution | 10 bit |
| Analog input conversion time | 625 μs per channel |
| PROFINET interfaces | 1; isolated; RJ 45 |
| Supply | AC 85-264 V AC at 47-63 Hz |
| Work memory | 30 kbyte |
| Load memory | 1 Mbyte |
| Protection | IP20 |
Applications
- PID control: The source explicitly supports a PID controller.
- Controlled positioning: The source explicitly supports controlled positioning.
Key Features
- Compact CPU with onboard I/O: CPU 1211C AC/DC/relay with 6 integrated digital inputs, 4 relay outputs, and 2 analog inputs.
- Digital input channels: 6 digital inputs use a 24 V DC rated value; 3 inputs support HSC technological functions.
- Relay output channels: 4 relay outputs support resistive loads up to 2 A; short-circuit protection is not included and must be provided externally.
- Analog input range: 2 analog inputs support 0 to +10 V with 10 bit resolution and 625 μs conversion time per channel.
- PROFINET and communication: 1 isolated PROFINET interface with RJ 45 supports PROFINET IO Controller, PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, MODBUS, and S7 communication.
- AC supply and memory: Supply: AC 85-264 V AC at 47-63 Hz. Integrated work memory: 30 kbyte; load memory: 1 Mbyte.
Frequently Asked Questions
1. What I/O does the Siemens 6ES7211-1BE31-0XB0 have?
It has 6 integrated 24 V DC digital inputs, 4 relay digital outputs, and 2 analog inputs.
2. What signal range do the analog inputs support?
The 2 analog inputs support 0 to +10 V, with 10 bit resolution and 625 μs conversion time per channel.
3. Which interface and protocols are supported?
It has 1 isolated PROFINET interface with RJ 45 and supports PROFINET IO Controller, PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, MODBUS, and S7 communication.
4. What supply does this CPU require?
Supply is AC 85-264 V AC at 47-63 Hz.
5. Is short-circuit protection included for the relay outputs?
No. Short-circuit protection is not included and must be provided externally.
