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Siemens 6ES7211-0AA23-0XB0 — PLCs (Programmable Logic Controllers)

Siemens 6ES7211-0AA23-0XB0 S7-200 CPU, 24V DC

MPN6ES7211-0AA23-0XB0

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Siemens S7-200 CPU, 6ES7211-0AA23-0XB0, 24 V DC, 3 W, LAD/FBD/STL, RS485 MPI/PPI.

$202.00Ref. price · indicative, final on quote

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Siemens 6ES7211-0AA23-0XB0 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7211-0AA23-0XB0 — I/O
Parameter	Value
Digital inputs	6; Integrated
Digital outputs	4; Transistor

6ES7211-0AA23-0XB0 — Processor & Memory
Parameter	Value
Size, max.	32 byte

6ES7211-0AA23-0XB0 — Programming
Parameter	Value
Programming language: FBD	Yes
Programming language: LAD	Yes

6ES7211-0AA23-0XB0 — Electrical
Parameter	Value
Rated value (DC)	24 V
Permissible range, lower limit (DC)	20.4 V
Permissible range, upper limit (DC)	28.8 V
Power loss (typ.)	3 W
Short-circuit protection	No; to be provided externally

6ES7211-0AA23-0XB0 — Mechanical
Parameter	Value
Width	90 mm
Height	80 mm
Depth	62 mm
Weight (approx.)	270 g

6ES7211-0AA23-0XB0 — Environmental
Parameter	Value
Operating temperature, min. (horizontal mounting)	0 °C
Operating temperature, max. (horizontal mounting)	55 °C

6ES7211-0AA23-0XB0 — Communication
Parameter	Value
Interface type	Integrated RS 485 interface

Product details

What it is and key specs

The Siemens 6ES7211-0AA23-0XB0 is an S7-200 CPU from the current production line, built for small to medium automation tasks. It supports LAD, FBD, and STL programming and carries an integrated RS485 interface with MPI and PPI protocols for communication with HMI panels and other S7 CPUs. The 24 V DC supply has a permissible range of 15.4 to 28.8 V. Power loss is typ. 3 W. Four high-speed counters (30 kHz each) are available for encoder input or pulse counting.

Integration notes

Footprint is 90 x 80 x 62 mm. Backup time reaches 50 h with the high-performance capacitor (200 days typ. with optional battery module). Retentive memory uses capacitor or battery; no EEPROM wear-out concern for the program.