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M
ain
Chapter 1 Configuration and Operation Mode of Programs
1-5
(2) Example of calculating the scan time
The example of the high performance XGB PLC’s system configuration and the calculation result of the scan
time are as follows.
Items
System Configuration
Basic unit
SLOT2
SLOT3
SLOT4
SLOT5
SLOT6
SLOT7
SLOT8
Product
name
XEC-DN32U
XBE-DC32A * 3EA
XBF-AD04A * 2EA
XBL-
C41A
XBL-EMTA
Operating
conditions
32kStep
-
-
200 Byte per module,
1 block
However, in the event of changing during RUN or writing communication parameters with XG5000, it requires
converting the program changed during RUN into executable machine code in the PLC or other internal
processing operations for changed communication parameters so the scan time may be temporarily increased
by several ms or more.
(3) Verification of the scan time
The PLC’s scan time can be verified by using XG5000 or flag as below.
(a) How to use XG5000: Click
『
Online
』
-
『
Diagnosis
』
-
『
PLC information
』
-
『
Performance
』
.
(b) How t to use flag : The scan time is saved in the below system flag (F) area.
Scan time= Ladder running time + system processing time + digital I/O processing time +
analog I/O processing time + communication module processing time + XG5000 Service
processing time = 9.7 + 0.8 + 0.3*3 + 2.0*2 + 0.8*2 +0.1
㎲
= 17.1
㎳
Summary of Contents for XBE-DC08A
Page 124: ...Main Chapter 1 Configuration and Operation Mode of Programs 1 27 1 Memory block diagram ...
Page 504: ...Position Chap 6 Commands 6 61 6 11 Function blocks related to Servo Drive ...
Page 644: ...Positioning Chapter 8 Functions 8 91 ...
Page 727: ...Positioning Chapter 9 Positioning Error Information Solutions 9 13 ...
Page 1207: ...Appendix 2 Dimension App2 2 2 Analog Type XEC DN32UA ...
Page 1209: ...Appendix 2 Dimension App2 4 XBE DC08A XBE DC16A XBE TN08A XBE TN16A XBE DR16A XBE RY08A ...
Page 1210: ...Appendix 2 Dimension App2 5 4 Extension Cnet I F Module XBL C41A XBL C21A ...