Page 245 - Gas Detection Systems Training Manual

8.3.5.1.2 Change Date and Time Screen
The screen shown above, for setting the SEC 3500 OI HMI Panel Clock is accessed from both the Main Menu and the Supervisor Configuration Menu. Simply enter the date in the date field and enter the time in the time field when you touch the values above respectively; a popup keyboard appears for you to enter the current time or date.
This date and time is used to synchronize the SEC 3100 devices attached to the SEC Modbus loop, when you choose to set their clocks. It is especially useful when setting ALL SEC 3100 devices on the Modbus loop at once since the process grabs the real-time HMI clock at the instant a device is ready to receive the clock update- moreover, as the HMI continues the sync process it re-adjusts the 3100 clock(s) until it is within 5 seconds of the HMI clock.
In the future, an option may be added to have the HMI clock automatically synchronized to a network time server over the Ethernet port, to keep all HMIs in time- sync and all their associated Modbus networks and devices in time-sync.
Sensor Electronics Corporation 5500 Lincoln Drive Minneapolis, Minnesota 55436 September 29th, 2006
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952-938-9486
SEC 3500 OI Supervisor Operator’s Manual Version 2.1.0095