Transcription of Technical Guide for PLC Basic - Omron
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Technical Guide for PLC Basic - Omron
Technical Guide for PLC Basic CSM_PLC Basic_TG_E_1_1. Introduction This Guide will describe the terminology needed for Basic operation of the SYSMAC PLC (Programmable Controller), for clients new to our PLCs. This Guide does not cover Technical details regarding the setting of the FA System or PLC programming after purchase. I/O Refresh With the PLC (Programmable Controller), 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 (At Omron , we call this the "I/O memory "). At the same time, packages of data from sensors/switches that are directly connected to the Basic I/O unit are exchanged with data in the PLC.
In the case of the SYSMAC CS/CJ Series, the content of the Memory Area is backed up using flash memory, which means that even if battery power fails, any user programs and parameter area data will not be lost. User Program Area This records user programs designed by the client. I/O Memory Area This Area is accessed by command operands.
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