Ronan X501NET User Manual
Page 25
Chapter 2 - Interface
X501NET System Configuration Manual © 2008 Ronan Engineering Company 19
2.6.2.3 Mux Node Logical Address Field
The Mux Node Logical Address field is used to assign the same logical to both of the
devices that make up the redundant pair.
2.6.2.4 All Points Same Logical Address Check Box
For cases where the X501NET Multiplexer is redundant, and the logical address is the same for
all points, but different than the physical, change the X501NET Multiplexer Node parameter and
check the box All Points Same Logical Address.
For redundant configurations where each point could have any logical addressm the All Points
Same Logical Address must be left unchecked and each of the points must be assigned to the
appropriate logical address using the point configuration screen.
2.6.2.5 Points Display Offset Field
By default all points in the X501 are zero based, i.e. the first point is number 0. There are
applications where the customer may want to see them starting from 1, or even another
number
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. The Point Display Offset is used for this purpose. It is important to note that setting
this field to a value different than zero will not affect the communication with other devices
(except the X110
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) and is used only to offset the display of the point on the X501NET
Multiplexer local pages (e.g. the Points Status and Point Configuration pages).
2.6.2.6 Mux Tag Field
The X501NET Mux Tag parameter is displayed on each page by this configuration interface.
2.6.3 Time Configuration
Time stamping events with the accurate time of occurrence is one of the main tasks of the
X501NET. Since this is such an important function, the X501NET supports many options to
assure that it can have as accurate a time stamp as possible
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.
2.6.3.1 NTP Servers Field
The X501NET is able to receive the time using SNTP protocol. The time received from the NTP
servers can be:
• the primary time source for the X501NET, or
• a fall-back time source that is used in case any better quality
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time source is not
available.
13
Valid values for this field are 0 through 65525.
14
This parameter is also used to offset the points for X110 communication.
15
Within the limits of the time sources provided.
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The NTP precision is about ±10 ms in most of the local networks.