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 /Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s Controller
Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s Controller
Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s
Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s

Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s Controller

SIMATIC S7-200 SMART · CPU CR20s

6ES7288-1CR20-0AA1

The 6ES7288-1CR20-0AA1 is a Siemens SIMATIC S7-200 SMART CPU CR20s PLC with 12 digital inputs, 8 relay outputs and integrated RS485 serial communication.

INPUTS12 DI
OUTPUTS12 Transistor
SUPPLY20.4–28.8 VDC
MEMORY20 KB
MANUFACTURERSiemens
CONDITION / WARRANTYOriginal New · One-Year Warranty
ISO CERTIFICATIONISO-Certified Product
VERIFICATION● Product photos and videos provided after inquiry
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SIEMENS ● STANDARD CPU
SIMATIC S7-200 SMART PLC

6ES7288-1CR20-0AA1

CPU CR20s

Standard CPU · AC/DC/Relay

MEASUREMENT ROLE
6ES7288-1CR20-0AA1 is a standard SIMATIC S7-200 SMART CPU with onboard 12 DI at 24 V DC, 8 relay outputs rated 2 A and integrated communication interfaces.
CONFIGURATION NOTE
For 6ES7288-1CR20-0AA1, Siemens specifies an 85–264 V AC, 47–63 Hz supply, 20 KB program/data memory and one onboard RS485 serial interface.
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ORDER NUMBER BREAKDOWN

How the order number identifies this CPU

6ES7288
Product familySIMATIC S7-200
SMART
1CR20
CPU version
0AA1
Order suffix
MANUFACTURER-REFERENCE CHARACTERISTICS

Technical Specifications

SIMATIC S7-200 SMART ↗
S7-200 SMART CPU FAMILY

Engineering data at a glance

Click “+” to expand more specifications.

LENGTH9 cm
WIDTH10 cm
HEIGHT8.1 cm
WEIGHT0.367 kg
Official Siemens product data.
Official product verification Verify the complete order number 6ES7288-1CR20-0AA1and electrical version against the current official Siemens datasheet before ordering.
General Information −
BrandSiemens
Part number6ES7288-1CR20-0AA1
Product typeCPU CR20s AC/DC/Relay
Product familySIMATIC S7-200 SMART
Mounting styleDIN rail
Engineering softwareSTEP 7 Micro/WIN SMART
Onboard I/O and Memory ＋
Digital inputs12 DI, 24 V DC
Digital outputs8 relay outputs, 2 A
Program / data memory20 KB total
Performance and Communication ＋
Bit execution time150 ns
ExpansionFixed onboard I/O; no expansion modules
Serial interfaceRS485
Power loss14 W maximum
Functions6 counters, up to 8 PID loops
Environment and Certification ＋
Operating temperature: −20 to +60 °C for horizontal mounting and −20 to +50 °C for vertical mounting. Maximum relative humidity is 95%, non-condensing.
Source: Siemens official technical datasheet for 6ES7288-1CR20-0AA1.
FAQ

Questions Buyers Ask Most

Which projects are a good fit for 6ES7288-1CR20-0AA1?＋

6ES7288-1CR20-0AA1 CPU CR20s is a cost-focused fixed-I/O CPU for pumps, fans, conveyors, utility skids and simple standalone machines. It is best when 12 DI and 8 relay outputs cover the complete project and future I/O expansion is not expected.

What can the eight relay outputs of 6ES7288-1CR20-0AA1 switch, and when is an interposing relay needed?＋

The 6ES7288-1CR20-0AA1 CPU CR20s provides 8 relay outputs rated 2 A. Check the AC or DC load voltage, contact rating, switching frequency and inrush current; motors, large solenoids and contactors may require an interposing relay or separate protection.

How should power be arranged in a 6ES7288-1CR20-0AA1 control panel?＋

Power the 6ES7288-1CR20-0AA1 CPU CR20s from 85–264 V AC at 47–63 Hz. The onboard digital inputs use 24 V DC, so plan the field supply separately. Siemens specifies approximately 14 W power loss for the 6ES7288-1CR20-0AA1 CPU CR20s.

Is the 20 KB memory of 6ES7288-1CR20-0AA1 enough for counters, alarms and serial data?＋

6ES7288-1CR20-0AA1 CPU CR20s provides 20 KB total program and data memory with a bit execution time of about 150 ns. It also supports four high-speed counters up to 100 kHz, but program size, retained data and communication buffers should be estimated first.

Can 6ES7288-1CR20-0AA1 communicate with Modbus devices or a PROFINET HMI?＋

The integrated RS485 port supports PPI, Modbus RTU, USS and free-port communication. 6ES7288-1CR20-0AA1 CPU CR20s has no onboard PROFINET, so an external serial-to-Ethernet gateway is needed for Ethernet-only equipment.

Can signal modules or a signal board be added to 6ES7288-1CR20-0AA1 later?＋

No. The 6ES7288-1CR20-0AA1 CPU CR20s is a fixed, non-expandable CPU and does not support signal modules or a signal board. The enclosure size is approximately 90 × 100 × 81 mm and the 6ES7288-1CR20-0AA1 CPU CR20s weighs about 367 g.

What information should be supplied for a 6ES7288-1CR20-0AA1 replacement or quotation?＋

Provide 6ES7288-1CR20-0AA1, the existing nameplate, line voltage, input sensor types, relay load voltage/current/inrush, RS485 protocol, program backup status, quantity, destination and required delivery date.

CONTACT PRODUCT SPECIALIST

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Share the complete order number and application details for compatibility, availability and lead-time checking.

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DATA SHEET

Manuals and Official References for
6ES7288-1CR20-0AA1

Official Siemens documentation for the SIMATIC S7-200 SMART CPU CR20s.

SIMATIC S7-200 SMART CPU CR20s

Siemens technical datasheet for 6ES7288-1CR20-0AA1, including electrical, I/O, memory, communication, environmental, dimension and weight data.

OFFICIAL DATASHEET

Contact to Get Support

Send the complete model, quantity, and your technical or purchasing question.

Technical statements on this product page are based on publicly available official Siemens manufacturer documentation.

S7-200 SMART SYSTEM RELATIONSHIP

How CPU CR20s Fits into the SIMATIC S7-200 SMART System

Siemens is the brand; SIMATIC S7-200 SMART is the PLC family; and 6ES7288-1CR20-0AA1 is the CPU CR20s AC/DC/Relay model with onboard I/O and communication.

Siemens · BRAND
SIMATIC S7-200 SMARTPLC FAMILY · AUTOMATION SYSTEM
PROCESSING CORE

CPU CR20s

CPU CR20s executes the user program and manages its onboard 12 digital inputs and 8 relay outputs.

ENGINEERING

STEP 7 Micro/WIN SMART

STEP 7 Micro/WIN SMART is used to configure, program and commission the S7-200 SMART CPU.

COMMUNICATION

RS485 serial communication

The integrated RS485 port supports PPI, Modbus RTU, USS and free-port communication.

System relationship: verify the complete CPU order number, power version, I/O needs and the fixed onboard I/O and RS485 communication requirements.
APPLICATION AREAS

Application mind map for the S7-200 SMART CPU CR20s

Machine ControlLogic and sequence control for compact machines
Packaging LinesOnboard digital I/O and transistor switching
APPLICATION CENTER CPU CR20s Compact PLC automation
Building SystemsControl of pumps, fans and auxiliary equipment
OEM EquipmentCost-effective automation for production equipment
ABOUT MOORE AUTOMATION

A trusted industrial automation sourcing partner

Moore Automation Limited supplies industrial automation spare parts to customers worldwide, with dedicated sourcing, part-number verification, pre-shipment confirmation and responsive sales support.

Global sourcing Pre-shipment verification One-year warranty
SERVICE

Industrial Automation Order Support

A clear workflow for sourcing, verification, shipment preparation, delivery and product assurance.

STAGESERVICE ACTIONWHAT WE CHECK OR PROVIDE
01PROCUREMENT
Product SourcingCurrent, hard-to-find and discontinued industrial automation parts.
02VERIFICATION
Part Number ReviewComplete model, suffix, nameplate, visible revision and application details.
03CONFIRMATION
Pre-Shipment CheckModel, label, condition and packaging confirmed with actual photos or video.
04FULFILLMENT
Global Delivery
Worldwide delivery with flexible shipping options. We support door-to-door pickup or delivery to your nominated freight forwarder in China.
DHLFedExUPSTNT
05ASSURANCE
One-Year WarrantyOne-year warranty from delivery for products supplied by Moore Automation.
Warranty Claim Information＋
What to provide: If a product-related issue occurs within the warranty period, contact our team and submit one clear, continuous video for review.
✓Complete product and nameplate
✓Power supply and wiring connections
✓Installation and operating conditions
✓Indicator lights, alarms or error messages
✓Clear description of the fault
✓Continuous video showing the issue
Review outcome: If the evidence confirms a covered product fault, Moore Automation will arrange the appropriate warranty solution.
SALES ASSISTANCE

Contact Sales Manager Frida

Include the complete part number, quantity and delivery destination.

EMAILsales5@mooreplc.com WHATSAPP+86 153 5940 8275
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TAG CALDI : Siemens 6ES7288-1CR20-0AA1 6ES7288-1CR20-0AA1 CPU CR20s SIMATIC S7-200 SMART CPU Siemens S7-200 SMART PLC 6ES7288-1CR20-0AA1 datasheet CPU CR20s AC/DC/Relay
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Materia : Siemens 6ES7288-1CR20-0AA1 SIMATIC S7-200 SMART CPU CR20s Controller
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