MELSEC-WS is Mitsubishi Electric's compact modular safety controller for stand-alone machines and systems. It is designed for applications up to Category 4 and SIL 3 (IEC 61508) / PL e (EN ISO 13849-1), expands with safety I/O and general network modules, and is configured with the dedicated Setting and Monitoring Tool. TKK supplies the MELSEC-WS lineup and supports model selection for machine safety projects in Thailand.

Safety performance

• Category 4 (EN ISO 13849-1), SIL 3 (IEC 61508) and PL e (EN ISO 13849-1) on CPU and safety I/O modules per Mitsubishi Electric catalog L(NA)08192E-O.
• Compact modular design for stand-alone machines; expand safety I/O as the application requires.
• Co-branded with SICK AG (DB mark in the catalog); check catalog footnotes where guarantee or general specs may differ from other MELSEC products.

CPU lineup

• WS0-CPU000200 (WS0-CPU0): program capacity 255 function blocks, 4 ms scan cycle, RS-232 configuration interface.
• WS0-CPU130202 (WS0-CPU1): EFI interfaces, Flexi Link, RS-232.
• WS0-CPU320202 (WS0-CPU3): EFI, Flexi Link and Flexi Line, RS-232 and USB.
• Required memory plugs: WS0-MPL000201 for WS0-CPU0 / WS0-CPU1; WS0-MPL100201 for WS0-CPU3.

Safety I/O and network

• WS0-XTDI80202: safety inputs, 8 single / 4 double, spring-clamp terminals.
• WS0-XTIO84202: safety inputs 8 and outputs 4 (single), max 2 A, fast shut-off about 8 ms.
• WS0-4RO4002: safety relay outputs, 4 points, switching current max 6 A.
• WS0-GCC100202: CC-Link Ver.1.10 remote device station for general (non-safe) communication.
• WS0-GETH00200: Ethernet TCP/IP for general (non-safe) communication with higher-level PLCs and HMIs.

Flexi Link and Flexi Line

• Flexi Link on WS0-CPU1 and WS0-CPU3 for multi-station safety networking.
• Flexi Line on WS0-CPU3 for additional multi-station safety networking.
• These are safety networking features of the WS controller; they are not a redundant PLC CPU architecture.

Engineering software

MELSEC-WS is configured and monitored with the Setting and Monitoring Tool, model SW1DNN-WS0ADR-B. Contact your local Mitsubishi Electric sales representative for acquisition. Windows 11 is supported per the operating manual.

Models in the series

Main MELSEC-WS models TKK can supply, from Mitsubishi Electric catalog L(NA)08192E-O (March 2024) and related FA documents. Contact TKK to confirm availability for your project.

Safety controller CPUs

• WS0-CPU000200 (WS0-CPU0)
• WS0-CPU130202 (WS0-CPU1)
• WS0-CPU320202 (WS0-CPU3)

Memory plugs

• WS0-MPL000201 (WS0-MPL0)
• WS0-MPL100201 (WS0-MPL1)

Safety I/O

• WS0-XTDI80202 (WS0-XTDI)
• WS0-XTIO84202 (WS0-XTIO)
• WS0-4RO4002 (WS0-4RO)

Network interfaces

• WS0-GCC100202 (WS0-GCC1)
• WS0-GETH00200 (WS0-GETH)

Cables and terminals

• WS0-C20M8U
• WS0-C20R2
• WS0-UC-232A
• WS0-TBS4
• WS0-TBC4

Engineering software

• SW1DNN-WS0ADR-B (Setting and Monitoring Tool)

Why choose TKK for Mitsubishi Electric products?

TKK helps factory teams source, select and support Mitsubishi Electric products with confidence, from the first quotation to long after installation.

• Official Mitsubishi Electric distributor, supplying genuine products through an authorized channel.
• Competitive, value-focused pricing for single units and project quantities.
• Ask us about current availability, and our specialists can recommend a suitable replacement if needed.
• A team of product specialists ready to advise on model selection, application and replacement.
• Dedicated, responsive after-sales service and technical support.

Planning a MELSEC-WS safety controller system? Contact TKK for model selection and application advice.