OMRON INDUSTRIAL AUTOMATION CS1W-CN226 CABLE CONNECTOR Data Sheet

Below you will find brief information for PLC SYSMAC CS/CJ, PLC SYSMAC CP1H, PLC SYSMAC CP1L, PLC SYSMAC CP1E, PLC SYSMAC C200HS, PLC SYSMAC C200HX, PLC SYSMAC C200HG, PLC SYSMAC C200HE, PLC SYSMAC CQM1H, PLC SYSMAC CQM1, PLC SYSMAC CPM1, PLC SYSMAC CPM1A, PLC SYSMAC CPM2A, PLC SYSMAC SRM1, PLC SYSMAC CPM2C. This technical guide describes the terms needed for basic operation of the SYSMAC PLC (Programmable Controller), for clients new to our PLCs. The guide does not cover technical details regarding the setting of the FA System or PLC programming after purchase.

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PLC SYSMAC CS/CJ Technical Guide | Manualzz

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Key features

  • I/O Refresh
  • Cycle Time
  • Interrupt Tasks
  • I/O Allocation
  • CPU Unit Memory Area
  • Installation Conditions

Frequently asked questions

With the PLC, commands from user programs designed by the client are executed one by one and processed by reading and writing information in the internal PLC memory area. This process to totally exchange external data and internal I/O memory data is called “I/O Refresh Operation”.

In terms of the PLC processing cycle, the cycle time is the time from the execution (commencement) of the I/O Refresh operation to the execution (processing) of the following I/O Refresh. The cycle time includes time for overhead processing (self-diagnosis), execution of user programs, I/O Refresh processing and the processing of peripheral services..

Interrupt Tasks however are executed in precedence to this processing cycle. In the event that certain interrupt conditions are met, the processing cycle will be suspended and the interrupt tasks will be executed first. Interrupt Tasks can include power Off interrupt, Scheduled Interrupts, I/O Interrupts, Periodic Interrupts based on the internal timer, and External Interrupts.

In order for user programs to utilize I/O signals from the I/O Units mounted to the PLC, it is necessary to first assign an address within the PLC I/O Memory. The assignment of I/O Memory to the input or output from these units within the PLC is known as I/O Allocation. This I/O Allocation information is recorded in the PLC in the “Registered I/O Table”.

The PLC Unit utilizes a variety of different data including user programs, I/O Memory data and comments, CPU Unit and Special I/O units Parameters, and Registered I/O Table information etc. All of this data that is used by the PLC is stored in the memory area within the CPU unit.
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