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I/O BLUEPRINT
ST40
SIMATIC S7-200 SMART
CPU DC/DC/DC SIEMENS ORDER NUMBER
6ES7288-1ST40-0AA1
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COMPACT CONTROL / TRANSISTOR OUTPUT
Siemens 6ES7288-1ST40-0AA1 CPU ST40A 24 V DC SIMATIC S7-200 SMART controller with 24 integrated digital inputs, 16 transistor outputs and 40 KB program/data memory. |
Siemens 6ES7288-1ST40-0AA1 is the CPU ST40 DC/DC/DC model in the SIMATIC S7-200 SMART family. It combines a 24 V DC supply with 24 onboard digital inputs and 16 transistor digital outputs for compact machine and process-control tasks. Siemens specifies 40 KB of program and data memory, standard DIN-rail mounting, engineering with STEP 7 Micro/WIN SMART, one PROFINET interface and one RS485 interface. The controller is relevant to maintenance replacement, machine-panel modernization and spare-stock planning where the complete order number, CPU firmware, project backup, expansion layout and field wiring must be reviewed before purchase.
| Field | Confirmed Configuration |
|---|---|
| Manufacturer | Siemens |
| Complete Part Number | 6ES7288-1ST40-0AA1 |
| Product Type | SIMATIC S7-200 SMART CPU ST40 DC/DC/DC |
| Series | SIMATIC S7-200 SMART |
| Supply | 24 V DC rated; 20.4–28.8 V DC permissible range |
| Onboard Inputs | 24 digital inputs, 24 V DC |
| Onboard Outputs | 16 transistor outputs; three high-speed outputs up to 100 kHz |
| Program and Data Memory | 40 KB total |
| Engineering | STEP 7 Micro/WIN SMART |
| Interfaces | 1 × PROFINET and 1 × RS485 |
| Mounting | Standard DIN rail |
| Dimensions | 125 × 100 × 81 mm |
| Protection | IP20 |
| 24 DI 24 V DC INPUTS |
16 DQ TRANSISTOR OUTPUTS |
40 KB PROGRAM + DATA |
2 PORTS PROFINET + RS485 |
| Fast digital control | The transistor-output design supports three high-speed pulse outputs up to 100 kHz for suitable positioning and pulse-train tasks. |
| Counting functions | Six integrated counters are available for technological input functions; the applicable frequency depends on the configured counting mode. |
| Industrial Ethernet | The integrated PROFINET interface supports 10/100 Mbit/s communication and PROFINET IO functions subject to the installed firmware. |
| Serial communication | One RS485 interface supports system communication requirements documented for the S7-200 SMART platform. |
| Project engineering | Use STEP 7 Micro/WIN SMART and preserve the validated project, parameter settings and communication records before CPU replacement. |
| Compact machinery | Sequence, interlock and pulse-output control with integrated digital I/O. |
| Conveyor and handling | Machine-level control where 24 V DC field signals and transistor outputs are specified. |
| Packaging equipment | Compact control panels requiring rapid digital switching and documented communication links. |
| Maintenance replacement | Exact-order-number replacement planning after project, firmware and wiring review. |
| Panel modernization | Upgrade work where CPU supply, I/O count, output type, communications and dimensions are confirmed. |
| Product Condition | NEW |
| Hardware Revision | Contact us to confirm. |
| Firmware Version | Contact us to confirm. |
| Country of Origin | GERMANY |
| Compatibility | Confirm the project, firmware, supply, I/O, expansion modules and cabinet wiring. |
| Availability and Warranty | Confirm current availability and written quotation terms. |
Please contact us to confirm the exact revision, firmware version, condition and availability before ordering.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Each stage is documented against the exact Siemens order number and the written quotation.
| 01 | Identify Verify 6ES7288-1ST40-0AA1, CPU type, complete suffix and required quantity. |
| 02 | Confirm State product condition and written warranty terms in the quotation; provide current label photos when requested. |
| 03 | Review Compare 24 V DC supply, transistor I/O, expansion layout, project information and revision requirements from customer-provided data. |
| 04 | Protect Prepare suitable product protection and export packaging for the agreed transport route. |
| 05 | Dispatch Confirm carrier, freight cost, shipment tracking and agreed customs documentation for the destination. |
| 06 | Respond Review after-sales questions and issue return authorization according to the written order terms. |
Availability and lead time are confirmed for the current inquiry and are not fixed by this page.
| 70EXACT MODELS |
STOCKOEMS PROCUREMENT INDEX
Siemens Product SelectionLinked order numbers open product pages already published on Stockoems. |
| 01SIEMENS 6AV2123-2DB03-0AX0 | 02SIEMENS 6AV3688-3EH47-0AX0 | 03SIEMENS 6AV3688-4EY07-0AA0 | 04SIEMENS 6ES7131-1BL01-0XB0 | 05SIEMENS 6ES7131-6BF00-0DA0 |
| 06SIEMENS 6ES7134-6HD00-0BA1 | 07SIEMENS 6ES7138-4FA02-0AB0 | 08SIEMENS 6ES7153-2BA02-0XB0 | 09SIEMENS 6ES7157-0AA82-0XA0 | 10SIEMENS 6ES7195-7HB00-0XA0 |
| 11SIEMENS 6ES7195-7HD80-0XA0 | 12SIEMENS 6ES7195-7KF00-0XA0 | 13SIEMENS 6ES7197-1LB00-0XA0 | 14SIEMENS 6ES7212-1AD30-0XB0 | 15SIEMENS 6ES7214-1AD22-0XB0 |
| 16SIEMENS 6ES7214-1AG40-0XB0 | 17SIEMENS 6ES7221-1BF32-0XB0 | 18SIEMENS 6ES7221-1BH32-0XB0 | 19SIEMENS 6ES7222-1BF32-0XB0 | 20SIEMENS 6ES7231-4HD30-0XB0 |
| 21SIEMENS 6ES7231-4HF32-0XB0 | 22SIEMENS 6ES7232-4HB32-0XB0 | 23SIEMENS 6ES7241-1CH30-0XB0 | 24SIEMENS 6ES7307-1EA01-0AA0 | 25SIEMENS 6ES7321-1BH02-0AA0 |
| 26SIEMENS 6ES7322-1BL00-0AA0 | 27SIEMENS 6ES7322-8BH01-0AB0 | 28SIEMENS 6ES7323-1BL00-0AA0 | 29SIEMENS 6ES7326-1BK01-0AB0 | 30SIEMENS 6ES7326-1BK02-0AB0 |
| 31SIEMENS 6ES7331-7NF00-0AB0 | 32SIEMENS 6ES7350-1AH03-0AE0 | 33SIEMENS 6ES7360-3AA01-0AA0 | 34SIEMENS 6ES7392-1AM00-0AA0 | 35SIEMENS 6ES7403-1JA01-0AA0 |
| 36SIEMENS 6ES7421-7BH01-0AB0 | 37SIEMENS 6ES7422-1HH00-0AA0 | 38SIEMENS 6ES7422-7BL00-0AB0 | 39SIEMENS 6ES7431-0HH00-0AB0 | 40SIEMENS 6ES7431-1KF10-0AB0 |
| 41SIEMENS 6ES7521-1BL00-0AB0 | 42SIEMENS 6ES7522-1BL01-0AB0 | 43SIEMENS 6ES7532-5NB00-0AB0 | 44SIEMENS 6ES7648-6AA03-5YA0 | 45SIEMENS 6ES7648-6CA05-0YX0 |
| 46SIEMENS 6ES7650-1AH61-5XX0 | 47SIEMENS 6ES7650-1AL11-6XX0 | 48SIEMENS 6ES7650-1BD51-0XX0 | 49SIEMENS 6ES7658-1GX08-2YT7 | 50SIEMENS 6ES7972-0BA12-0XA0 |
| 51SIEMENS 6ES7972-0BA52-0XA0 | 52SIEMENS 6ES7972-0BB12-0XA0 | 53SIEMENS 6ES7972-0CB35-0XA0 | 54SIEMENS 6ES7972-0DA00-0AA0 | 55SIEMENS 6GK5108-0BA00-2AA3 |
| 56SIEMENS 6GK5206-1BB10-2AA3 | 57SIEMENS 6GK5208-0BA00-2AB2 | 58SIEMENS 6GK5208-0BA10-2AA3 | 59SIEMENS 6GK5208-0HA10-2AA6 | 60SIEMENS 6GK5212-2BB00-2AA3 |
| 61SIEMENS 6GK5216-0BA00-2AA3 | 62SIEMENS 6GK5744-1ST00-2AB6 | 63SIEMENS 6GK5788-1AA60-6AA0 | 64SIEMENS 6GK5991-1AF00-8AA0 | 65SIEMENS 6GK6000-8HS01-0AA0 |
| 66SIEMENS 6GK7243-1JX30-0XE0 | 67SIEMENS 6GK7443-1EX20-0XE0 | 68SIEMENS 6EP1332-4BA00 | 69SIEMENS 6EP1334-1LB00 | 70SIEMENS 6EP1332-1SH42 |
Compatibility notice: Every entry is an independent product listing and is not presented as a direct replacement. Confirm the complete order number, revision and system requirements before ordering.
Include the model, quantity and destination country for a current quotation check.
