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PRODUCT DESCRIPTION
Expandable SR30 processing with twelve relay outputs
The expandable Siemens 6ES7288-1SR30-0AA1 CPU SR30 combines 18 digital inputs and 12 relay outputs within a 110 mm-wide controller. An AC supply powers this standard S7-200 SMART unit, whose 18 KB program memory is accompanied by support for six expansion modules and one signal board.
Ethernet and RS485 provide network and serial communication alongside the local control program. Separate sensor-power and expansion-bus supplies support the configured station, while relay-load limits remain distinct from those power budgets. Firmware-specific functions must match the installed controller and engineering project.
Ethernet and RS485 provide network and serial communication alongside the local control program. Separate sensor-power and expansion-bus supplies support the configured station, while relay-load limits remain distinct from those power budgets. Firmware-specific functions must match the installed controller and engineering project.
BEFORE YOU BUY
Confirm the complete installed configuration
ACTUAL APPLICATIONS
Industrial Production and Service Sectors
These industry examples describe Siemens' broader market coverage, not verified installations of this exact product. Product suitability depends on the documented configuration and engineering requirements.
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01 · WATER & WASTEWATER
Desalination and Water Distribution
Seawater desalination for additional freshwater supply within water utilities.Drinking water distribution through networks serving public supply needs. -
02 · TEXTILE MANUFACTURING
Natural and Manufactured Fibers
Natural fiber production and processing within the textile industry.Manufactured fiber production for the wider textile manufacturing sector. -
03 · FOOD & BEVERAGE
Edible Oil and Sugar Production
Edible oil production and processing across the food manufacturing sector.Sugar manufacturing and processing within the commercial food industry.
Technical specifications for 6ES7288-1SR30-0AA1
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Product Model6ES7288-1SR30-0AA1
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Spare Model6ES7288-1SR30-0AA0
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Product ParametersCPU SR30 Relay Controller
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In stock1 unit
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ManufacturerSiemens
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AC supply range85 to 264 V AC, 47 to 63 Hz
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Onboard digital inputs18, nominal 24 V DC
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Onboard digital outputs12
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Output technologyRelay, dry contact
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Program memory18 KB
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Ethernet interface1, 10/100 Mbit/s
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Serial interface1 x RS485
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Expansion modules6 maximum
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Signal-board expansion1 maximum
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Sensor-power output24 V DC, 300 mA maximum
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Output current per point2 A maximum; observe common-group and load-type limits
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Memory cardOptional microSDHC card
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Expansion-bus supply5 V DC, 1400 mA maximum
View all additional
Alternative Names
6ES7 288-1SR30-0AA1
SIMATIC S7-200 SMART CPU SR30
Siemens CPU SR30 AC/DC/Relay
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
S7-200 SMART ARCHITECTURE
Expandable SR30 processing with twelve relay outputs
The SR30 starts with eighteen inputs and twelve relay outputs in a 110 mm-wide CPU. Its standard architecture supports up to six expansion modules and one signal board, allowing the configured I/O arrangement to extend beyond the onboard digital points.
A built-in Ethernet connection and RS485 interface provide network and serial access. The V2.8 system manual documents PROFINET controller and I-Device functions for this standard CPU; the installed firmware and project configuration determine the functions actually commissioned. One serial port is integrated on the CPU.
Relay contacts are intended for the documented switched loads, not high-frequency transistor pulse operation. Sensor supply consumption and expansion-bus demand are separate budgets, so adding channels involves both a project configuration check and an electrical power calculation. The manual lists no overload protection for these outputs.
Features:
- 18/12 onboard digital I/O
- Ethernet plus serial access
- Expandable standard CPU
The Siemens 6ES7288-1SR30-0AA1 requires the documented hardware configuration, installation conditions and interface arrangement to be verified before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Match the complete SR30 0AA1 order number, not only the thirty-point designation. ST30 has transistor outputs and a DC CPU supply, while CR30s omits the standard expansion and Ethernet resources; these are different hardware arrangements. The power source and output stages must remain distinguished.
Retain the STEP 7-Micro/WIN SMART project, module list and communication settings. Check firmware against the project before transfer, especially where PROFINET roles or retained data are used; reference-manual capabilities do not establish the firmware supplied with a spare. An optional signal board also changes the configured resources.
Compare the twelve relay circuits and eighteen input assignments with the installation drawings. Confirm expansion and sensor loads against their respective limits, and verify the selected STOP-state behavior before returning the configured controller to normal operation. The contact load rating remains independent of the sensor supply.
Features:
- Complete suffix verification
- Project and firmware comparison
- Electrical configuration review
The Siemens 6ES7288-1SR30-0AA1 requires replacement verification based on its complete order number, installed hardware, signal configuration and project documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.
Features:
- Exact-model manufacturer data and relevant original manual pages
- Verified manufacturer product reference; separate installation document not supplied
- Accessories and supplied documentation follow the written quotation
Documentation for the Siemens 6ES7288-1SR30-0AA1 includes an independent technical summary and selected original manufacturer pages; check the applicable document edition against the delivered product and approved installation documentation.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed sizeConfirm final packed dimensions
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Shipping weightConfirm final packed weight
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8537101190
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OriginConfirm supplied-unit origin
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7288-1SR30-0AA1
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What local I/O is included before SR30 expansion modules are added?
Eighteen nominal 24 V DC inputs and twelve relay outputs are on the CPU. Attached expansion-module points are additional configured resources, not part of that onboard count. -
How far can the standard SR30 configuration expand?
The CPU supports up to six expansion modules and one signal board. The complete configuration must also satisfy the expansion-bus and sensor-power budgets. -
Can its twelve relay contacts be used at transistor pulse rates?
No. Siemens restricts the stated high pulse frequency to transistor-output models and does not recommend pulse operation on relay CPUs. The SR30 relay table specifies a 1 Hz maximum switching frequency. -
Which communication interfaces are built into this SR30?
One Ethernet interface and one RS485 port are integrated. The standard CPU documentation includes PROFINET controller and I-Device roles; verify the installed firmware and project before using them. -
Does the 300 mA sensor rating include relay-load capacity?
No. The 300 mA figure is for sensor power. Individual relay-contact and common-group limits must be checked separately from sensor consumption and CPU supply demand. -
What matters if a spare arrives with V2.8 firmware?
The release notes state that a V2.8 CPU cannot be downgraded to V2.7 or earlier. Match the engineering project and software environment to the actual spare, not just the SR30 designation.
READY TO VERIFY YOUR PART?
Get a 6ES7288-1SR30-0AA1 quote with price, lead time and revision check.
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6ES7288-1SR30-0AA1CPU SR30 Relay ControllerManufacturer: SiemensView Details
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