Chapter 5. Power Supply / CPU
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5.7 Memory Configuration
The CPU module includes two types of memory that are available by the user. One is program memory, which is used to store
the user programs written to implement a system by the user. The other is data memory, which stores data during operation.
1) Program memory configuration
The table given below shows the contents to be stored and the storage capacity of program memory.
Item Memory Capacity
Overall program memory area
132 kbyte
Parameter area
• Basic parameter area
• High speed link parameter area
• interrupt setting information area
7.8 kbyte
Program area
• Scan program area
• Task program area
• User defined function/function block area
• Standard library area
• Variable initialization information area
• Protective variable specification information area
124.2 kbyte
Data memory configuration
Item Memory Capacity
Overall data memory area
44 kbyte
System area
• I/O information table
• Force I/O table
1 kbyte
System flag area
2 kbyte
Input image area (%IX)
128 byte
Output image area (%QX)
128 byte
Direct variable area (%M)
10 kbyte
Symbolic variable area
30 kbyte
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