TOYOPUC-PCwin (JTEKT)
TOYOPUC PLCs are made by JTEKT (Toyota group) and are found throughout Toyota plants and Japanese automotive suppliers worldwide. They are programmed with JTEKT's TOYOPUC-PCwin software.
The PLCs
The TOYOPUC range includes the PC10 series (e.g. PC10G, PC10P), the Plus series and the compact Nano series, plus safety PLCs. They are known for fast scan times and are used for car body, engine and assembly lines.
Addresses in hexadecimal
TOYOPUC numbers bits in hexadecimal: X000–X00F, then X010. Remote I/O stations continue the numbering after the CPU's own I/O.
| Area | Meaning |
|---|---|
| X / Y | inputs / outputs |
| M | internal relays |
| K | keep relays: once an OUT K coil turns on it stays ON until RST K, and K relays keep their state at power-off |
| L | link relays (shared over the network) |
| V | special relays: always ON, first scan, clock pulses, flags |
| P | edge relays used by the rise / fall differential instructions |
| T / C | timers / counters |
| D | data registers (16-bit words) |
Editing ladder in PCwin
- The ladder is a grid: place the cursor in a cell and add elements with the function keys, for example vertical and horizontal lines, NO and NC contacts, rise and fall differentials, coils, set/reset, timers and counters.
- Rise / fall differentials pass power for one scan on the rising or falling edge of the logic in front of them. Each one stores its previous state in its own P relay, so every differential needs a unique P address.
- The Property window (double-click an element) sets the instruction type, address and the device comment.
- Device comments are shown under each contact and coil in monitoring.
Online
Connect over Ethernet or USB, transfer (write) the program and parameters to the PLC, switch to RUN and monitor live power flow. As with any PLC, edit a running machine only when you understand the consequences.
Practise for free
The PLC Sim Lab Playground has a TOYOPUC mode built to feel like PCwin: hexadecimal X/Y addresses, the V special relays, P-relay rise/fall differentials, PCwin-style F-keys (F1 vertical line, F2 horizontal line), a Property window on double-click, device comments and double-coil checking.
Try it yourself. Wire sensors, contactors and a PLC, write ladder logic and press RUN in the free PLC Sim Lab Playground. Nothing to install.
Open the Playground →Guided lessons →