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	"id": "97c063ca-978d-41b3-aec3-afd18861b230",
	"created_at": "2026-04-06T00:11:11.990063Z",
	"updated_at": "2026-04-10T03:22:06.235446Z",
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	"title": "What are the different operating modes in PLC? - PLC (Programmable Logic Controllers) - Industrial Automation, PLC Programming, scada \u0026 Pid Control System",
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	"authors": "",
	"file_creation_date": "0001-01-01T00:00:00Z",
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	"plain_text": "What are the different operating modes in PLC? - PLC\r\n(Programmable Logic Controllers) - Industrial Automation, PLC\r\nProgramming, scada \u0026 Pid Control System\r\nPublished: 2017-10-21 · Archived: 2026-04-05 16:27:45 UTC\r\nSkip to main content\r\nThere are basically two modes of operation for plc processors program mode and variations of run mode. Number\r\nof modes changes with the manufacturer.\r\nThere are key switches shown above that allow selecting the modes.\r\nProgram Mode:\r\nThe mode in which new programs are entered. The program mode also used to edit or update existing program\r\nand used to upload, download files, document program (print out). When the PLC is switched into the program\r\nmode, all outputs from the PLC are forced off regardless of their rung logic status, and the ladder I/O scan\r\nsequence is halted.\r\nRun Mode:\r\nhttps://forumautomation.com/t/what-are-the-different-operating-modes-in-plc/2489\r\nPage 1 of 2\n\nThe run mode is used to execute the user program. Input devices are monitored and output devices are energized\r\naccordingly. After entering all instruction to a PLC program, the processor is put into run mode.\r\nTest Mode:\r\nThis feature is often used after developing or editing a program to test the program execution before allowing the\r\nPLC to operate real-world outputs. Without energizing any output a new or modified program is tested with the\r\ninputs. There are different types of the test mode can include the single-step test mode, which directs the processor\r\nto execute a selected single rung or group of rungs; the single-scan test mode. which executes a single processor\r\noperating scan or cycle; and the continuous-scan test mode, which directs the processor to continuously run the\r\nprogram for checking or troubleshooting.\r\nRemote Mode:\r\nThe Remote position gives remote access to a PLC to select the program and run mode by a personal computer\r\nconnected to the PLC processor. The remote mode may be benefi cial when the controller is in a location that is\r\nnot easily accessible.\r\nSource: https://forumautomation.com/t/what-are-the-different-operating-modes-in-plc/2489\r\nhttps://forumautomation.com/t/what-are-the-different-operating-modes-in-plc/2489\r\nPage 2 of 2",
	"extraction_quality": 1,
	"language": "EN",
	"sources": [
		"MITRE"
	],
	"references": [
		"https://forumautomation.com/t/what-are-the-different-operating-modes-in-plc/2489"
	],
	"report_names": [
		"2489"
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