Product Overview
Technical Summary
| Product designation | SIMATIC S7-200 CPU 221 compact unit |
|---|---|
| Digital inputs | 6; integrated |
| Digital outputs | 4; transistor |
| Program memory | 4 kbyte |
| Data memory | 2 kbyte |
| Load voltage L+ | 24 V; permissible range: 20.4 V to 28.8 V |
| RS 485 interface | Integrated |
| Protocols | MPI; PPI; serial data exchange with ASCII protocol |
| High-speed counters | 4; 30 kHz each |
| Pulse outputs | 2; 20 kHz |
| Protection | IP20 |
Key Features
- Product designation: SIMATIC S7-200 CPU 221 compact unit with DC power supply.
- Digital I/O: 6 integrated DC digital inputs and 4 transistor digital outputs.
- Memory capacity: 4 kbyte integrated program memory and 2 kbyte integrated data memory.
- Supply voltage: Rated load voltage L+: 24 V; permissible range: 20.4 V to 28.8 V.
- Interfaces and protocols: Integrated RS 485 interface with MPI and PPI support; serial data exchange with ASCII protocol is supported.
- Protection and dimensions: IP20 protection; dimensions: 90 mm width, 80 mm height and 62 mm depth.
Applications
- Serial data exchange: Freely programmable interface for serial data exchange with third-party devices using ASCII protocol.
- High-speed counting: High-speed counters support counting frequencies up to 30 kHz.
- Pulse output: High-speed pulse outputs support pulse-width and frequency modulation.
Frequently Asked Questions
What does Siemens order number 6ES7211-0AA23-0XB0 identify?
It identifies a SIMATIC S7-200 CPU 221 compact unit with DC power supply, 6 DC digital inputs and 4 transistor DC digital outputs.
Which I/O configuration should be checked for this MLFB?
Check for 6 integrated digital inputs and 4 transistor digital outputs. The relay output count is 0.
Which interfaces and protocols are supplied?
The unit has an integrated RS 485 interface and supports MPI, PPI and serial data exchange with ASCII protocol.
What details are needed for a quotation?
Provide the complete order number, required quantity and destination.
