Chapter 5 Program Configuration and Operation Method
5- 31
There are two types of memory in CPU module that the user can use. One is Program Memory that saves the
user program written by the user to build the system, and the other is Data Memory that provides the device area
to save the data during operation.
5.4.1 Data memory
(1) Bit device area
Various Bit Device are provided per function. The indication method is indicated by device type for first digit,
word position by decimal for middle digit and bit position by hexadecimal for the last digit.
Image area to save the state of I/O device.
After reading the input module state, saves it in the
corresponding P area and sends P area Data
saving the operation result to output module.
Internal Memory provided to save Bit Data in
Program
Device to indicate high speed link/P2P service state
information of communication module.
Device area to preserve the data during power
shutdown, which is used without setting power
shutdown preservation parameter separately. (Pay
attention to write in special area (K2600 ~ 2559F)).
System flag area that manages the flag necessary
for system operation in PLC.
Area to save the state of contact/current value/set
value of timer device
Area to save the state of contact/current value/set
value of counter device
Step controller “S”
128 x 100 step
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