The Siemens 6ES7288-1ST20-0AA1 is a SIMATIC S7-200 SMART ST20 standard CPU with 12 integrated 24 V DC digital inputs, 8 24 V DC transistor outputs, and 20 KB of program/data memory.
- CPU ST20
- 12 DI 24 V DC; 8 transistor DQ
- 24 V DC nominal; 20.4 to 28.8 V DC permissible
- 20 KB program/data memory
It executes the STEP 7 Micro/WIN SMART user program, reads the 12 onboard binary input signals, and commands 8 field outputs for fast solid-state switching and pulse-train motion on a compact DC-powered controller. 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 labeling, indexing, and compact motion machines.
Important Notice: Use the complete 6ES7288-1ST20-0AA1 code and verify the physical nameplate, firmware, project, accessories, and current Siemens documentation before installation or replacement.
Apter Power 6ES7288-1ST20-0AA1 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 12 digital states and switches 8 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 labeling, indexing, and compact motion machines
Networked compact control
Exchanges commands, process values, and diagnostics over the documented interfaces
Read the exact Siemens S7-200 SMART documentation before use. Verify 6ES7288-1ST20-0AA1, CPU ST20, power, I/O wiring, firmware, and project from the physical installation.
1
Identity: Match the complete 6ES7288-1ST20-0AA1 MLFB, CPU ST20 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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