Uploaded June 2026 | Updated September 2026, 2 weeks ago
Toggle a PLC output with one input using the flip-flop (toggle) coil — flip an output on and off with a single push, replacing complex latching rungs. Here's how.
⚡ QUICK ANSWER
The toggle coil (also called a flip-flop coil) flips an output's state each time its rung goes true — one input transition turns the output on, the next turns it off, and so on. That makes it perfect for push-button lighting or fan control, where one button should switch a load on and off. The big advantage is simplicity: instead of building a latching/seal-in circuit with multiple rungs and a normally-closed contact to unlatch, you use a single toggle coil instruction and one input. It's cleaner code that does the same job. On the P1-M622-16DR you just add the toggle coil to a rung driven by your input, and each press flips the output. The full contact-and-coil walkthrough is in the guide below.
📖 FULL WRITTEN TUTORIAL + DOWNLOADS (contact & coil instructions)
accautomation.ca/p1-m622-16dr-mini-plc-contact-and-coil-instructions
📚 WHAT YOU'LL LEARN
✅ How the toggle (flip-flop) coil flips an output's state on each rung transition
✅ How to toggle an output on and off with a single input
✅ Why it's ideal for push-button lighting or fan control
✅ How it replaces a more complex latching/seal-in circuit
❓ FREQUENTLY ASKED
Q: What is a toggle (flip-flop) coil in PLC ladder logic?
A: It's a coil that flips its output's state each time the rung goes true — one input press turns the output on, the next turns it off. The full walkthrough is in the guide.
Q: Why use a toggle coil instead of a latching circuit?
A: It does the same on/off-with-one-button job in a single instruction, instead of a multi-rung latching/seal-in circuit — cleaner, simpler code.
👉 Full contact & coil guide: accautomation.ca/p1-m622-16dr-mini-plc-contact-and-coil-instructions
🔗 MORE RESOURCES
▶ Series: accautomation.ca/series/productivity-plc
▶ PLC Beginners Guide: accautomation.ca/programming/plc-beginners-guide
▶ Free eBooks: accautomation.ca (subscribe for download)
🛒 RECOMMENDED HARDWARE
▶ Shop: automationdirect.com
▶ Parts Guide: accautomation.ca/purchase-find-parts
💬 Questions? Drop a comment below.
🔔 New tutorials every Monday — Subscribe and hit the bell!
#PLC #LadderLogic #IndustrialAutomation #PLCProgramming #ACCAutomation #ProductivityPLC #AutomationDirect #FlipFlop #ToggleCoil #Shorts
Regards,
Garry
ACC Automation
accautomation.ca
Toggle a PLC output with one input using the flip-flop (toggle) coil — flip an output on and off with a single push, replacing complex latching rungs. Here's how.
⚡ QUICK ANSWER
The toggle coil (also called a flip-flop coil) flips an output's state each time its rung goes true — one input transition turns the output on, the next turns it off, and so on. That makes it perfect for push-button lighting or fan control, where one button should switch a load on and off. The big advantage is simplicity: instead of building a latching/seal-in circuit with multiple rungs and a normally-closed contact to unlatch, you use a single toggle coil instruction and one input. It's cleaner code that does the same job. On the P1-M622-16DR you just add the toggle coil to a rung driven by your input, and each press flips the output. The full contact-and-coil walkthrough is in the guide below.
📖 FULL WRITTEN TUTORIAL + DOWNLOADS (contact & coil instructions)
accautomation.ca/p1-m622-16dr-mini-plc-contact-and-coil-instructions
📚 WHAT YOU'LL LEARN
✅ How the toggle (flip-flop) coil flips an output's state on each rung transition
✅ How to toggle an output on and off with a single input
✅ Why it's ideal for push-button lighting or fan control
✅ How it replaces a more complex latching/seal-in circuit
❓ FREQUENTLY ASKED
Q: What is a toggle (flip-flop) coil in PLC ladder logic?
A: It's a coil that flips its output's state each time the rung goes true — one input press turns the output on, the next turns it off. The full walkthrough is in the guide.
Q: Why use a toggle coil instead of a latching circuit?
A: It does the same on/off-with-one-button job in a single instruction, instead of a multi-rung latching/seal-in circuit — cleaner, simpler code.
👉 Full contact & coil guide: accautomation.ca/p1-m622-16dr-mini-plc-contact-and-coil-instructions
🔗 MORE RESOURCES
▶ Series: accautomation.ca/series/productivity-plc
▶ PLC Beginners Guide: accautomation.ca/programming/plc-beginners-guide
▶ Free eBooks: accautomation.ca (subscribe for download)
🛒 RECOMMENDED HARDWARE
▶ Shop: automationdirect.com
▶ Parts Guide: accautomation.ca/purchase-find-parts
💬 Questions? Drop a comment below.
🔔 New tutorials every Monday — Subscribe and hit the bell!
#PLC #LadderLogic #IndustrialAutomation #PLCProgramming #ACCAutomation #ProductivityPLC #AutomationDirect #FlipFlop #ToggleCoil #Shorts
Regards,
Garry
ACC Automation
accautomation.ca
