
Using the Automatic Clock Adjustment FunctionSection
5-1-2 Specifications
Item | Specification | |
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Protocol | SNTP |
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Port number | 123 (UDP) |
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| Can also be set from the | |
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Adjustment timing | Automatic (fixed time) and manual (manual only cannot be | |
| set) |
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Access to SNTP | Writes the clock information | Obtains the clock information |
server | from the SNTP server to the | from the SNTP server set up |
| local CPU Unit. | on the Network, and applies |
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| the information obtained to |
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| the local CPU Unit. |
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Refresh timing | When the automatic clock adjustment switch is turned from | |
| OFF to ON and at a specified time. | |
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5-2 Using the Automatic Clock Adjustment Function
5-2-1 Procedure
1.Make the basic settings.
Refer to SECTION 2 Installation and Initial Setup in the Ethernet Units Operation Man- ual Construction of Networks (W420).
↓
2.With the
•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 Adjustment 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.
n = CIO 1500 + (25 ⋅ unit number)
↓
4.Select Transfer to PLC from the Options 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 Area).
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