7-47
Reducing the transmission cycle time when there are stations that have not been added
If there are stations that have not been added to the link, the Tlk time (link addition processing time) and
with this the transmission cycle time will be longer.
With the SYS1 instruction, the link addition waiting time Twt in the above formula can be reduced. Thus,
SYS1 can be used to minimize the increase in the transmission cycle time.
<Programming example of SYS1 instruction>
(SYS1, M PCLK1T0, 100)
Function: Setting SYS1 to change the waiting time for a link to be added to the PC(PLC) link from the
default value of 400 ms to 100 ms.
Keywords: Setting for key word no. 1: PCLK1T0
Permissible range for key word no. 2: 10 to 400 (10 ms to 400 ms)
Note:
If there are any units that have not been added to the link, the setting should not be changed as
long as a longer link transmission cycle time does not cause any problem.
-
The SYS1 instruction should be executed at the beginning of the program, at the rise of R9014. The
same waiting time should be set for all linked PLCs.
-
The waiting time should be set to a value of at least twice the maximum scan time for any of the PLCs
connected to the link.
-
If a short waiting time has been set, there may be PLCs that cannot be added to the link even if their
power supply is on. (The shortest time that can be set is 10 ms.)
Summary of Contents for FP0R Series
Page 1: ......
Page 6: ...iv ...
Page 14: ...xii ...
Page 15: ...Chapter 1 Functions and Restrictions of the Unit ...
Page 24: ...1 10 ...
Page 25: ...Chapter 2 Specifications and Functions of Control Unit ...
Page 38: ...2 14 ...
Page 39: ...Chapter 3 Expansion ...
Page 45: ...3 7 3 4 Terminal layout diagram Model No Terminal layout diagrams E8RS E8RM E16RS E16RM E8YRS ...
Page 48: ...3 10 ...
Page 49: ...Chapter 4 I O Allocation ...
Page 53: ...Chapter 5 Installation and Wiring ...
Page 73: ...Chapter 6 Preparation of USB Port ...
Page 77: ...6 5 5 Click Finish on the following screen to be displayed ...
Page 79: ...6 7 4 Double click on FP0R 5 Click Update Driver ...
Page 84: ...6 12 ...
Page 85: ...Chapter 7 Communication ...
Page 139: ...7 55 Sample program For Type II Use a program as below to directly specify a MODBUS address ...
Page 141: ...Chapter 8 High speed Counter Pulse Output and PWM Output Functions ...
Page 142: ...8 2 ...
Page 199: ...Chapter 9 Security Functions ...
Page 211: ...Chapter 10 Other Functions ...
Page 217: ...Chapter 11 Self Diagnostic and Troubleshooting ...
Page 227: ...Chapter 12 Precautions During Programming ...
Page 242: ...12 16 ...
Page 243: ...Chapter 13 Specifications ...
Page 254: ...13 12 ...
Page 255: ...Chapter 14 Dimensions and Others ...
Page 262: ...14 8 ...
Page 263: ...Chapter 15 Appendix ...
Page 344: ...15 82 15 7 ASCII Codes ...
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