Siemens 6ES7288-1CR30-0AA1 SIMATIC S7-200 SMART CPU CR30s Controller

6ES7288-1CR30-0AA1 CPU CR30s increases the fixed onboard capacity to 18 digital inputs and 12 relay outputs, adding 6 inputs and 4 outputs compared with 6ES7288-1CR20-0AA1 CPU CR20s. Both are compact non-expandable CPUs, so select the final point count before ordering.

Each onboard relay output is rated 2 A. Separate high-inrush contactors, valves and motors from low-current signaling loads, check the permitted switching voltage and frequency, and use protection or interposing relays where the application exceeds the contact rating.

The 6ES7288-1CR30-0AA1 CPU CR30s accepts 85–264 V AC at 47–63 Hz, while its digital inputs use 24 V DC. Allow about 14 W power loss, dimensions of 110 × 100 × 81 mm and a weight of approximately 435 g.

6ES7288-1CR30-0AA1 CPU CR30s provides 20 KB total program and data memory with a bit execution time of about 150 ns. It supports four high-speed counters up to 100 kHz; verify retained data, interrupt logic and serial buffers when sizing the application.

Use the integrated RS485 port for PPI, Modbus RTU, USS or free-port communication. There is no onboard PROFINET, so Ethernet HMIs or controllers require a suitable external gateway and protocol mapping.

No. The 6ES7288-1CR30-0AA1 CPU CR30s has fixed onboard I/O and no signal-module or signal-board expansion. If the final project may exceed 18 DI and 12 relay outputs, choose an expandable SR/ST CPU before completing the panel design.

Provide the old CPU nameplate, 6ES7288-1CR30-0AA1, line voltage, sensor count, relay load voltage/current/inrush, RS485 protocol and node settings, program backup status, quantity, destination and required delivery date.