The Siemens 6ES7288-1ST40-0AA1 is a SIMATIC S7-200 SMART ST40 standard CPU with 24 integrated 24 V DC digital inputs, 16 24 V DC transistor outputs, and 40 KB of program/data memory.
- CPU ST40
- 24 DI 24 V DC; 16 transistor DQ
- 24 V DC nominal; 20.4 to 28.8 V DC permissible
- 40 KB program/data memory
It executes the STEP 7 Micro/WIN SMART user program, reads the 24 onboard binary input signals, and commands 16 field outputs for forty-point solid-state control with Ethernet engineering and high-speed technology functions. Its transistor channels also support the high-speed pulse-output functions documented by Siemens. The standard CPU exchanges engineering, process, and diagnostic data over Industrial Ethernet/PROFINET and RS485, and can use compatible S7-200 SMART expansion components. It is suited to multi-axis auxiliaries and high-cycle machinery.
Important Notice: Use the complete 6ES7288-1ST40-0AA1 code and verify the physical nameplate, firmware, project, accessories, and current Siemens documentation before installation or replacement.
Apter Power 6ES7288-1ST40-0AA1 Manuals and Guides
Important Notice: These are two separate Apter Power documents prepared from the manufacturer-published Siemens information named in each document. Confirm the physical nameplate, current Siemens documents, and host-system requirements before installation or replacement.
High-speed machine I/O
Reads 24 digital states and switches 16 transistor outputs without relay contact wear
Pulse-train positioning
Generates configured PTO signals for compatible motion components
Packaging and labeling
Coordinates sensors, actuators, and indexed motion in multi-axis auxiliaries and high-cycle machinery
Networked compact control
Exchanges commands, process values, and diagnostics over the documented interfaces
Read the exact Siemens S7-200 SMART documentation before use. Verify 6ES7288-1ST40-0AA1, CPU ST40, power, I/O wiring, firmware, and project from the physical installation.
1
Identity: Match the complete 6ES7288-1ST40-0AA1 MLFB, CPU ST40 marking, hardware, and firmware
2
Power: Verify 24 V DC nominal; 20.4 to 28.8 V DC permissible and isolate all sources before wiring or removal
3
I/O: Observe every channel voltage, current, group common, polarity, and protective-device limit
4
Project: Back up and match the STEP 7 Micro/WIN SMART configuration, addresses, communications, and retentive data
5
Panel: Use DIN-rail mounting, protective earth, segregation, ventilation, and orientation limits from Siemens
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