PLC CPUs, Safety PLCs & Logic Modules

PLC CPUs, safety PLCs and logic modules from Siemens, Schneider Electric and ABB. The range has over 240 controllers, from small logic relays such as LOGO! 8 and Zelio Logic to SIMATIC S7-1500 and redundant S7-400H systems. Stoklink ships worldwide from Turkey and quotes project volumes on request.

What's in this range

• SIMATIC S7-1500 and S7-1500F CPUs, including fail-safe and technology versions.
• SIMATIC S7-1200 and S7-400 CPUs, including S7-400H redundant systems.
• Modicon M221, M241 and M262 controllers from Schneider Electric.
• Logic modules: LOGO! 8 and Zelio Logic for small machines and building control.

How to choose

• Program memory and cycle time: size them to the control task and expected growth.
• Onboard I/O and expansion: small controllers have fixed I/O, larger CPUs scale through modules.
• Interfaces: check PROFINET, Ethernet, serial and OPC UA support against the plant network.
• Safety rating: a safety PLC must match the SIL required by the risk assessment.

FAQ

Can I replace an S7-300 CPU with an S7-1500?

Not as a direct swap. The hardware differs and the program must be migrated in TIA Portal. Plan for new I/O or an interface module.

What does the F in S7-1500F mean?

It marks a fail-safe CPU. It runs safety functions alongside the standard program and needs F-rated I/O for safety signals.

Do you ship CPUs outside Turkey?

Stoklink ships worldwide from Turkey under EXW terms. Lead time depends on distributor stock, and project quantities are quoted on request.