Omron CS1W-MC221 -, Operation Manual

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Overall Structure Section 5-1
5-1-3 Flash Memory
The contents of the MC Unit’s internal memory are lost when the power to the
MC Unit is turned OFF or when the MC Unit is restarted. Internal memory
contents can be saved in flash memory using data save operations.
The following types of data can be stored in flash memory.
• Position data
• System parameters
• G-language programs
Note Refer to 4-3 Saving Data for details.
5-1-4 Restart Flags
A Restart Flag can be turned ON and then OFF to restart the MC Unit without
turning the power OFF and back ON again.
5-1-5 MC Unit Initialization
Initial processing is performed for the MC Unit when the power is turned ON
or when the Unit is restarted. During initial processing, commands from the
CPU Unit cannot be received and will be ignored.
When MC Unit initial processing is being executed, the Special I/O Unit Initial-
ization Flag will be turned ON.
When the MC Unit is started up immediately after power to the PLC is turned
ON, confirm that the Special I/O Unit Initialization Flag is OFF before continu-
ing with operation.
Note 1. Make sure that the correct data is used.
2. Confirm the safety of the equipment before attempting to make changes to
the PLC Interface Area settings.
Bit address Function
A50200 to A50215 Restart Flags for Units 0 to 15
A50300 to A50315 Restart Flags for Units 16 to 31
A50400 to A50415 Restart Flags for Units 32 to 47
A50500 to A50515 Restart Flags for Units 48 to 63
A50600 to A50615 Restart Flags for Units 64 to 79
A50700 to A50715 Restart Flags for Units 80 to 95
Bit address Function
A33000 to A33015 Initialization Flags for Units 0 to 15
A33100 to A33115 Initialization Flags for Units 16 to 31
A33200 to A33215 Initialization Flags for Units 32 to 47
A33300 to A33315 Initialization Flags for Units 48 to 63
A33400 to A33415 Initialization Flags for Units 64 to 79
A33500 to A33515 Initialization Flags for Units 80 to 95