Siemens 6ES7288-1SR20-0AA0 is the SIMATIC S7-200 SMART CPU SR20 compact PLC. It adopts AC230V power supply, with 12 points DC digital input and 8 points relay output (2A per point). Built-in 20KB program memory, it integrates Ethernet port and RS485 communication interface. It is used to collect field sensor signals and control actuators such as contactors, solenoid valves. It realizes logic control, timing, counting and simple motion control for small automation machines. Widely used for low-cost standalone automation projects.
✅ Integrated Ethernet + RS485 Port Ethernet for program download and HMI connection; RS485 supports Modbus RTU, easy to connect inverters, sensors and other automation devices. ✅ Relay Output, Wide Load Adaptability 8 relay outputs with 2A rating, can drive AC/DC loads directly. Good tolerance for inductive loads. ✅ Compact All-in-one Design CPU, power supply and digital I/O integrated in one unit, save cabinet space and reduce wiring work. ✅ 20KB Program Memory Sufficient storage for small logic programs, data recording and parameter storage. ✅ Easy Programming & Fast Commissioning Programmed with Siemens STEP 7-Micro/WIN SMART software. Online monitoring and program upload/download simplify on-site debugging. ✅ Stable Industrial Grade Performance Wide working temperature range, anti-interference design, suitable for harsh factory workshop environment. ✅ Global Standard Certification Compliant with IEC, UL, CE, RoHS, meets export requirements for global customers.
| Item | Specification |
|---|---|
| Model | 6ES7288-1SR20-0AA0 |
| Brand | Siemens |
| Series | SIMATIC S7-200 SMART |
| Power Supply | AC 230V |
| Digital Input | 12 x 24V DC |
| Digital Output | 8 x Relay, 2A per point |
| Program Memory | 20 KB |
| Communication | Ethernet + RS485 (Modbus RTU) |
| High-speed Counter | 4 counters, up to 200 kHz |
| Pulse Output | Not supported (relay type) |
| Mounting | DIN rail or screw panel mounting |
| Operating Temperature | 0 ℃ ~ +60 ℃ |
| Enclosure Class | IP20 |
Small conveyor systems, water pump control cabinets, packaging machines, exhaust fan control, solenoid valve control, automatic feeding equipment.