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Using the Automatic Clock Adjustment Function
Section 12-2
12-1-2 Specifications
12-2 Using the Automatic Clock Adjustment Function
12-2-1 Procedure
1,2,3...
1.
Make the basic settings.
Refer to Initial Settings on page 34.
2.
With the CX-Programmer online, right-click the EtherNet/IP Unit or built-in
EtherNet/IP port in the IO Table Dialog Box of the CX-Programmer, and se-
lect Edit - Unit Setup Set the following on the Auto Adjust Time Tab Page
of the Edit Parameters Dialog Box.
• SNTP server specification (required)
• Access to the SNTP server is enabled when writing clock information from
the SNTP server to the local CPU Unit when the Automatic Clock Adjust-
ment Switch is turned from OFF to ON and at a set automatic adjustment
time.
• Automatic clock adjustment setting.
3.
To perform automatic clock adjustment manually, turn the Automatic Clock
Adjustment Switch from OFF to ON. (The Automatic Clock Adjustment
Switch is word n bit 05 in the words allocated in the CPU Bus Unit Area,
where n = CIO 1500 + (25
×
unit number.)
4.
Select Transfer to PLC from the PLC Menu and click the Yes Button. The
Unit Setup (CPU Bus System Setup) will be transferred to the CPU Unit
(the setting data will be transferred to the CPU Bus Unit System Setup Ar-
ea).
Item
Specification
Protocol
SNTP
Port number
123 (UDP)
Can also be set from the CX-Programmer in the Unit Setup.
Adjustment timing
Automatic (fixed time) and manual (manual only cannot be
set)
Access to SNTP
server
Writes the clock information
from the SNTP server to the
local CPU Unit.
Obtains the clock information
from the SNTP server set up
on the Network, and applies
the information obtained to
the local CPU Unit.
Refresh timing
When the automatic clock adjustment switch is turned from
OFF to ON and at a specified time.
Summary of Contents for CJ2H-CPU6 - REV 02-2010
Page 2: ......
Page 4: ...iv...
Page 6: ...vi...
Page 14: ...xiv...
Page 18: ...xviii...
Page 38: ...12 Network Configurator Overview Section 1 5...
Page 58: ...32 Selecting the Network Devices Section 2 3...
Page 116: ...90 Auxiliary Area Data Section 4 5...
Page 222: ...196 Message Communications Errors Section 7 6...
Page 364: ...338 Using the Backup Tool Section 13 3...
Page 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Page 404: ...378 Ethernet Network Parameters Appendix B...
Page 406: ...380 TCP Status Transitions Appendix C...
Page 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Page 460: ...434 Index...
Page 462: ...436 Revision History...
Page 463: ......