5
MEMORIES AND FILES HANDLED BY CPU MODULE
5.4 File Operation by GX Developer and Handling Precautions
5.4.3 Memory capacities of files
5 - 69
1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication using
built-in Ethernet ports of
CPU module
8
Communication with
Intelligent Function
Module
.
* 1 : 136 is the default value. (It can be increased or decreased by parameter setting.)
* 2 : Round up "number of bit device points/16" to the right of the decimal point.
Remark
Refer to Section 5.4.4 for the memory capacity calculation example.
Table5.16 Memory capacity calculation for files (High Performance model QCPU, Process CPU, Redundant CPU) (Continued)
Function Rough file capacity (unit: byte)
Sampling trace file
362 + (number of word device points + number of bit device points) 12 + (N1 +N2 + N3 +
number of word device points 2 + (number of bit device points/16) 2) number of traces (total
number of traces)
*2
• The following values are added to the N1 to N3 corresponding to the items set in trace
Additional information of trace condition settings screen. ( Section 6.14 (4)(b))
N1 : Add "4" at setting time
N2 : Add "10" at setting step No.
N3 : Add "8" at setting program name
Failure history data 72 + 54 (number of failures stored)
Local device
72 + 6 (set device type) + (2 ((total number of M and V points)/16 + (number of D points)
+18 (total number of T, ST and C points)/16)) (number of programs)
• M, V, D, T, ST and C indicate the following set devices.
M : Internal relay
V : Edge relay
D : Data register
T : Timer
ST : Retentive timer
C : Counter
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