VDL S7‑300 U
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Temperature Limits:
High Limit: 257
Low Limit: -67
Temperature Limits Command
The default Limit Values are listed in the sample data. To change a Limit Value move the highlight to the
appropriate field and press the
Enter
key. Enter a number using the number keys. Negative values can
be entered. Accept the new value by pressing the
Enter
key.
The internal temperature and Limit Values are reported in degrees Fahrenheit.
pC
oDe
The Passcode feature prevents unauthorized users from altering the Setup Database via the front panel.
Passcodes can contain any combination of numeric values not exceeding eight total. A message similar
to the following will be displayed after selecting the PCode command.
Passcode: 12345678
Passcode Command
In the sample data cited previously the Passcode is set to its default value. To change the Passcode
press the
Enter
key. A blank field with the cursor in the left‑most position will be displayed. Assign a new
Passcode by pressing the appropriate number keys. To assign a null Passcode press the
Enter
key in‑
stead. This will effectively disable the Passcode protection feature. Access to the logger will be permitted
by simply pressing the
Enter
key when the request for Passcode message is displayed.
Accept the new Passcode by pressing
Enter
. Press the
Esc
key to complete the command.
If the user forgets the assigned Passcode the System Parameters command should be executed. It will
display the current Passcode assignment. Refer to the section entitled
“Passcode” on page 22
.
M
oDeM
The VDL can be equipped with an optional, internal 33,600 Baud modem. The modem option allows
remote users to access the logger. Additionally, the modem’s dial‑out feature allows Event Records from
Virtual Inputs to be transmitted to a remote maintenance center.
There are three parameters that control the operation of the modem. The Ring Count determines the
number of rings that must occur prior to the modem answering an incoming call. The Primary and
Secondary Dial Numbers identify the number to dial when attempting to transmit a Virtual Input record.
Refer to the section entitled
“Primary and Secondary Dial Numbers” on page 22
for additional informa‑
tion regarding these parameters.
Data similar to the following will be displayed after selecting the Modem command.
Modem ring count: 2
Prim/Sec Dial Number
Modem Command
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