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SIMATIC S7-200 SMART
6ES7288-1CR20-0AA1
CPU CR20s, AC/DC/Relay; 12 integrated digital inputs and 8 integrated relay dry-contact outputs. 1 RS-485 port; no Ethernet or PROFINET.
Selection gate: confirm the full article number, firmware, power supply, output type and application before quotation.
Email: [email protected] WhatsApp: +86 18159889985
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01 / PRODUCT OVERVIEW
20-point AC/DC/Relay compact CPU
6ES7288-1CR20-0AA1 is identified by Siemens as a SIMATIC S7-200 SMART CPU CR20s with 12 onboard digital inputs and 8 onboard relay dry-contact outputs.
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ARTICLE NUMBER
6ES7288-1CR20-0AA1
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OFFICIAL TYPE
CPU CR20s AC/DC/Relay
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ONBOARD I/O
12 digital inputs / 8 digital outputs
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COMMUNICATION
Integrated RS-485 is available. Siemens documents zero PROFINET ports and no Ethernet functions for this CRs CPU.
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MEMORY
12 KB program memory and 8 KB user data
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EXPANSION
Expansion modules and signal boards are not available
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Replacement rule
Use the complete article number and verify firmware, wiring, program backup, network role and expansion hardware before replacement approval.
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02 / FUNCTIONS AND APPLICATIONS
Application map
Use only where the documented electrical, I/O, communication and environmental limits match the machine design.
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01
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Compact machine sequence and interlock control with integrated 24 V DC inputs and relay outputs.
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02
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Serial HMI, programming and device communication through the integrated RS-485 port.
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03
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High-speed counting: Four single-phase counters at 100 kHz; two A/B counters at 50 kHz.
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04
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Relay-load switching only within the documented voltage, current and service-life limits.
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05
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Ethernet, PROFINET, Web server and Ethernet-based engineering are not available.
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06
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Expansion modules and signal boards are not available
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07
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Verify the RS-485 programming path and project backup before replacement.
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Application boundary
Suitability for a specific load, machine, network or safety function is subject to engineering verification.
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03 / TECHNICAL DATA
Exact article-number data
Electrical, memory, physical and processing facts are separated from unit-specific commercial claims.
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TYPE
CPU CR20s AC/DC/Relay
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POWER SUPPLY
85 to 264 V AC at 47 to 63 Hz, or 77 to 138 V DC
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DIGITAL INPUTS
12, rated 24 V DC at 4 mA nominal
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DIGITAL OUTPUTS
8 relay dry-contact outputs
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OUTPUT RATING
2 A maximum per point
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USER MEMORY
12 KB program memory and 8 KB user data
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RETENTIVE MEMORY
2 KB maximum
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DIMENSIONS
90 x 100 x 81 mm
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WEIGHT
363 g
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POWER DISSIPATION
6 W
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CPU CURRENT
90 mA at 120 V AC or 60 mA at 240 V AC
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MAXIMUM CONFIGURATION
Expansion accessories are not available for this CPU
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INRUSH CURRENT
16.3 A maximum at 264 V AC
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SENSOR POWER
20.4 to 28.8 V DC, 300 mA maximum, short-circuit protected
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HIGH-SPEED COUNTERS
Four single-phase counters at 100 kHz; two A/B counters at 50 kHz
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PULSE OUTPUTS
Pulse outputs are not available
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Data control
Confirm the nameplate and exact suffix before quotation. Values for neighboring SR, ST and CR variants are not interchangeable.
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04 / INTERFACES OR CONSTRUCTION
Connection route
Trace every power, I/O and communication path before approving a replacement.
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ETHERNET PORTS
0
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PROFINET
Not available
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SERIAL PORT
1 integrated RS-485 port
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RS-485 SYSTEM RATES
9600, 19200 and 187500 bit/s
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RS-485 FREEPORT
1200 to 115200 bit/s
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ADD-ON SERIAL
Not available
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EXPANSION BUS
Expansion modules and signal boards are not available
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MEMORY CARD
Memory card is not available
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REAL-TIME CLOCK
Real-time clock is not available
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ENGINEERING
Confirm supported STEP 7 Micro/WIN SMART version and serial programming path
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Construction check
Verify connector assignment against the Siemens wiring diagram for this exact article number before energizing the CPU.
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05 / PROTECTION AND ENVIRONMENT
Operating window
Cabinet design, orientation, altitude, humidity and EMC conditions determine whether the documented limits can be maintained.
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HORIZONTAL MOUNTING
-20 to 60 degrees C
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VERTICAL MOUNTING
-20 to 50 degrees C
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TRANSPORT / STORAGE
-40 to 70 degrees C
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HUMIDITY
Up to 95% non-condensing
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OPERATING ALTITUDE
-1000 to 2000 m
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EMC ENVIRONMENT
Industrial; EN 61000-6-4 emissions and EN 61000-6-2 immunity
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DEGREE OF PROTECTION
IP20; external protection is required for dust, dirt, water and small foreign objects
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POLLUTION / OVERVOLTAGE
Pollution degree 2; overvoltage category II
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POWER ISOLATION
1500 V AC between input power and logic
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CE / UKCA
System-level conformity is documented; confirm exact product documentation when required
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Enclosure responsibility
IP20 is not a complete cabinet rating. Final enclosure, wiring separation, grounding and surge protection remain application responsibilities.
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06 / INSTALLATION OR SELECTION
Fit check
Match the CPU to the installed machine in a controlled sequence.
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01
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Read and photograph the complete article number: 6ES7288-1CR20-0AA1.
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02
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Confirm AC/DC/Relay power and output construction before wiring.
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03
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Record CPU firmware and the STEP 7 Micro/WIN SMART engineering version.
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04
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Verify RS-485 address, baud rate, protocol and serial programming access.
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05
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Expansion modules and signal boards are not available
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06
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Confirm DIN-rail space, orientation, clearance and power budget.
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07
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Back up the verified project and parameters before replacement.
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08
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Check every connector pin and output common against the exact Siemens wiring diagram.
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09
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Commission with controlled outputs and validated machine safeguards.
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Selection decision
If the article number, suffix, firmware, wiring or project cannot be verified, mark the replacement Subject to verification.
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07 / VERIFICATION CHECKLIST
Quotation gate
A compatibility review needs identification, project and application evidence.
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REQUESTED MODEL
6ES7288-1CR20-0AA1
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REQUIRED PHOTOS
Front label, side label, terminals and firmware display when available
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POWER / OUTPUT
Confirm AC/DC/Relay
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FIRMWARE
Provide the installed CPU firmware version
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SOFTWARE
Provide STEP 7 Micro/WIN SMART version
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PROJECT BACKUP
Confirm backup and restoration procedure
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EXPANSION HARDWARE
Expansion modules and signal boards are not available
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NETWORKS
RS-485 protocol, address and baud rate
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LOAD DETAILS
Output voltage, current, load type and switching duty
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APPROVALS
Subject to verification for the exact delivered unit and destination
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Evidence status
Current stock, condition, test evidence, warranty and dispatch timing are unit-specific and must be confirmed in the formal quotation.
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08 / AVAILABILITY AND COMMERCIAL INFORMATION
Commercial control and FAQ
Treat every commercial statement as a unit-specific fact that must be confirmed in writing.
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PHYSICAL STOCK
Confirm before quotation; a web listing is not proof of current inventory
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CONDITION
New, Used or Refurbished must be stated in the formal quotation
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CURRENT PHOTOS
Unit and nameplate photos are available on request, subject to verification
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WARRANTY
Confirm scope, exclusions and duration before acceptance
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DISPATCH
Subject to verification after order details are confirmed
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TESTING
Confirm test scope, method and evidence before quotation
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PAYMENT
Available on request; confirm accepted methods and beneficiary details
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QUOTE RESPONSE
Subject to verification after complete inquiry details are received
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How can the transaction be checked?
Verify seller identity, beneficiary, invoice terms, unit photos, test evidence and traceable shipping documents before payment.
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FAQ / Request Quote
Is it real stock? Confirm before quotation.
Can current photos be supplied? Available on request and subject to verification. Is the unit tested? Confirm the test scope and evidence before quotation. How fast is dispatch? Subject to verification after order details are complete. What is the warranty? Confirm duration and coverage in the written quotation. |
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10 / MODEL MATRIX
Recommended models
Fifty randomly selected models from the supplied Siemens TXT source. Availability and compatibility remain subject to verification.
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140DDO35300
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6GK5766-1GE00-7DA0
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6SX7010-0KB00
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6ED1052-1MD00-0BA5
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6DP1614-8BB
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6DD1607-0CA1
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6ES7151-3BB23-0AB0
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6ES7288-5CM01-0AA0
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6ES7253-1AA22-0XA0
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6ES7241-1CH32-0XB0
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6ES7350-2AH00-0AE0
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6GK5788-1AA60-2AA0
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Selection note
Model availability, condition and compatibility are subject to verification.
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Request a verified quotation
Send the full article number, condition, quantity, destination, firmware and application details.
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