Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | CPU 1211C DC/DC/relay |
| Digital inputs | 6; 3 usable for HSC functions |
| Digital outputs | 4; relay |
| Analog inputs | 2; 0 to +10 V |
| Supply | 24 V DC; 20.4 V to 28.8 V permissible range |
| PROFINET interfaces | 1; isolated; RJ 45 |
| Protocols | PROFINET IO Controller, PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, MODBUS |
| Work memory | 30 kbyte |
| Load memory | 1 Mbyte |
| Protection | IP20 |
Applications
- High-speed counting: 3 digital inputs are usable for HSC functions, with single-phase counting at 100 kHz and differential counting at 80 kHz.
- Controlled positioning and PID control: The source supports controlled positioning and PID controller functions.
Key Features
- Integrated I/O: 6 digital inputs, including 3 usable for HSC functions, plus 4 relay digital outputs and 2 analog inputs.
- Signal ranges: Digital input signals use 24 V DC; analog voltage inputs support 0 to +10 V with ≥100k ohms input resistance.
- DC supply: Rated supply is 24 V DC with a permissible range of 20.4 V to 28.8 V.
- PROFINET interface: 1 isolated PROFINET interface with RJ 45 connection supports PROFINET IO Controller, TCP/IP, ISO-on-TCP (RFC1006), and UDP.
- Memory and processing: Integrated work memory is 30 kbyte and load memory is 1 Mbyte; typical bit-operation processing time is 0.085 μs per instruction.
- Diagnostics and protection: The CPU has a diagnostic buffer, forcing, status/control variables, IP20 protection, and potential separation of digital inputs at 500 V AC for 1 minute.
Frequently Asked Questions
1. How many integrated I/O channels does the CPU 1211C have?
It has 6 digital inputs, 4 relay digital outputs, and 2 analog inputs.
2. What analog signal range do the inputs support?
The 2 analog inputs support 0 to +10 V and have ≥100k ohms input resistance.
3. Which network interface and protocols are supported?
It has 1 isolated PROFINET interface with RJ 45 connection and supports PROFINET IO Controller, PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, and MODBUS.
4. What supply voltage is required?
The rated supply is 24 V DC, with a permissible range of 20.4 V to 28.8 V.
