Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | CPU 1212C DC/DC/relay |
| Digital inputs | 8; 24 V DC |
| Digital outputs | 6; relay, up to 2 A with resistive load |
| Analog inputs | 2; 0 to +10 V |
| PROFINET interfaces | 1; RJ45 |
| Supply range | DC 20.4-28.8 V DC |
| Work memory | 50 kbyte |
| Load memory | 1 Mbyte |
| Resolution | 10 bit |
| Conversion time | 625 μs per channel |
| Protection | IP20 |
Applications
- High-speed counting: Four digital inputs are usable for HSC (High Speed Counting), with single-phase frequencies of 3 @ 100 kHz and 1 @ 30 kHz.
- Positioning control: The counter functions include controlled positioning.
- PID control: The counter functions include a PID controller.
- PROFINET IO control: The CPU supports PROFINET IO Controller operation.
Key Features
- Onboard I/O: 8 digital inputs at 24 V DC, 6 relay outputs, and 2 analog inputs with a 0 to +10 V input range.
- PROFINET communication: One isolated PROFINET interface with RJ45 connection, PROFINET IO Controller support, and PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, and MODBUS protocols.
- Relay output capacity: Relay outputs support up to 2 A with a resistive load; short-circuit protection is not included and must be provided externally.
- Processing and memory: Integrated work memory: 50 kbyte; load memory: 1 Mbyte. Typical processing times are 0.085 μs for bit operations, 1.7 μs for word operations, and 2.5 μs for floating point arithmetic.
- Diagnostics and functions: The CPU has a diagnostic buffer, forcing, status/control variables, 4 counters with up to 100 kHz counting frequency, and 4 alarm inputs.
- Power and protection: Supply range: DC 20.4-28.8 V DC. Power loss: 9 W. IP degree of protection: IP20.
Frequently Asked Questions
1. How many onboard I/O channels does the 6ES7212-1HE31-0XB0 have?
It has 8 digital inputs, 6 relay outputs, and 2 analog inputs. It has 0 analog outputs.
2. What analog signal range is supported?
The 2 analog inputs support 0 to +10 V, with an input resistance of ≥100k ohms and 10 bit resolution with overrange.
3. What communication interfaces and protocols are available?
It has 1 isolated PROFINET interface with RJ45 connection. Supported protocols include PROFINET IO Controller, PROFIBUS, TCP/IP, ISO-on-TCP (RFC1006), UDP, and MODBUS.
4. What supply range does the CPU require?
The supply range is DC 20.4-28.8 V DC. Typical power loss is 9 W.
5. Does the relay output include short-circuit protection?
No. Short-circuit protection is not included and must be provided externally.
