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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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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.

EMAIL
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+86 153 5940 8275

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

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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.

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