LSIS XBE-DC08A, User Manual

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M
ain
Chapter 1 Configuration and Operation Mode of Programs
1-26
1.3 Memory
The high performance XGB basic unit has two types of memory for a user. One is the program memory saving the user
program that is made by a user to build up the system; another is the data memory providing the device area that saves the
data during operation.
1.3.1 Program memory
The user program memory embedded in the high performance XGB PLC is composed as below.
Items Size (KB) Details
Parameter setting area 120
•
Basic parameter area
•
I/O parameter area
•
Special, communication module parameter area
•
User event, trace parameter area
Program saving area 1024
•
Scan program area1, 2
•
Variable/comment area
System area 156
•
User event, trace data area
•
System log area
•
Device backup area
Program backup area 1,362
•
Scan program area
•
Task program area
•
Upload area
•
Parameter initialization area
•
Retain parameter assignment area
1.3.2 Data memory
Data memory is shown as in below.
항 목 용량
Data memory entire area
212KB
System area :

I/O information table

Forced I/O table

Reserved area
20KB
Flag area
System flag (F)
4KB
Analog image flag (U)
768B
Internal special flag (K)
16KB
High speed link (L)
8KB
Input image area (%I)
2KB
Output image area (%Q)
2KB
R area (%R)
32 KB* 2block
Direct variable area (%M)
32KB
Symbolic variable area (maximum)
64KB