Micro-Aide CWR-24E, Руководство пользователя

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VDL S7‑300 U
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05:18:27.0 03/14/13 System Power Power OFF S01
05:18:59.2 03/14/13 System Power Power ON S01
14:11:51.0 03/14/13 High Temperature HighTemp ON S02
15:00:09.0 03/14/13 High Temperature HighTemp OFF S02
16:00:00.6 03/14/13 GPS Clock Record GPS Rec OFF S06 0.01SEC
Sample System Event Records
The first two records indicate that power was off to the logger for approximately 32 seconds. Later in the
same day the measured temperature was found to be excessive for 48 minutes. At 16:00:00.6 the GPS
Receiver synchronized the logger’s clock. It corrected the clock by .01 seconds.
With the Clock Sync Mode set to SNTP or GPS the user will never have to manually set the clock.
The GPS Receiver sync record listed previously is shown in the following as it would appear at the front
panel LCD.
16:00:00.6 03-14-13
S06 0.01SEC
GPS Clock Record
GPS Rec OFF
LCD System Event Record
System Events can be Queried and Browsed just like other Event Records. Instead of selecting a D, A, V or
T input type designator, select the S‑type.
System Events are always logged to memory in chronological sequence. The power on event will imme‑
diately follow the power off event. The time between the two Event Records indicates the period during
which no logging was possible. All of the Analog Input measurements for S1 records will be reported with
a zero value. This is done to eliminate erroneous readings.
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Like any microprocessor‑based product, the VDL executes a stored memory program. The program, re‑
ferred to as firmware, is saved in a Flash Memory chip. Flash Memory chips are uniquely characterized by
their permanent storage and multiple write properties. Their use allows the VDL firmware to be updated
to a newer version by simply uploading a new program file. The once common practice of shipping and
replacing a Programmable Read Only Memory (PROM) chip does not apply to the VDL. Consequently,
there is no need to open the unit to gain access to the Processor PCB.
The firmware update procedure, described in this section, must be performed via a PC connected to the
Terminal Port, USB Device Port, Ethernet Port or internal modem (provided the latter two are installed).
At the request of the user, MICRO‑AIDE support personnel can perform the update via the modem. A
firmware update can also be performed very easily by using the USB Host Port. The instructions for doing
so are described in the section entitled “Update” on page 70 .
Occasionally a new firmware release will be incompatible with the logger’s existing Setup Database.
When this happens the existing database will have to be erased and a new one created.
Incompatibilities, if any, are listed in Table 2 on page 4 . It should always be reviewed before proceed‑
ing with an update.
The steps necessary to complete the firmware update depend upon which communications application
is being used. The following example describes the HyperTerminal method. HyperTerminal 7.0 was used
in the following procedure. Other versions of this program may be slightly different. However, the funda‑
mental approach will remain valid.