Measurement Computing DBK70 - Manual (Page 45)

PidPRO & PidPRO+ 919092 5-15
Set Virtual Channel Count PidPRO+ Only
Menu: Channel Management/Set Number of Virtual Channels…
This command pops up a window that allows you to enter an integer number representing the number of virtual
channels you desire. Real channels are reported as analog outputs and on the DBK70’s serial port, while virtual
channels are reported only on the serial port. This document’s introduction includes additional information on
virtual channels.
A default value of 0 virtual channels configures the DBK70 to list only its
analog output channels. The DBK70 Channel list on the right side of the
main screen displays a row for each analog output channel and each
virtual channel. Changing the number of virtual channels will change the
number of rows in this list. As shown on the right, analog output channel
numbers show a prefix of “R” for real and virtual channels show a prefix
of “V” for virtual.
Set Channel Update Rate
Menu: Channel Management/Set Channel Update Rate…
This command allows the Update Rate parameter of the channel currently selected in the DBK70 channel list to
be modified. To modify other parameters, use the Append command to move the selected channel’s parameters
to the database list, modify the desired parameter(s), then use the Assign command to move all of the
parameters back to the selected channel. This window accepts integer numbers representing an update rate in
milliseconds. A value of –1 tells the channel to send its request message only once, when the DBK70 is
powered up.
Refer to the segments entitled Append DBK70 Channel to Database and Assign Database Item to DBK70
Channel for additional information. The segments begin on page 5-13 of this document.
Saving Current DBK70 Channel Configuration in its Non-Volatile RAM (NVRAM)
Menu: Channel Management / Save Channel Config in NVRAM …
This command saves the DBK70’s temporary channel configuration into its non-volatile RAM.
When a DBK70 channel is configured, the configuration is held in temporary memory until an explicit Save to
NVRAM command is issued. While in temporary memory, the configuration of the channel is fully functional,
but the configuration will be lost if the DBK70 looses power.
If the Save Channel Config to NVRAM user preference is set to save on each channel assignment, the save
command will be issued automatically every time a channel assignment is executed. No additional save
command is necessary to permanently save the settings.
If the Save Channel Config to NVRAM user preference is set to save on command and when PidPRO exits,
performing a channel assignment will not automatically issue a save command. In this state, channel
assignments are performed much faster. To save the configuration in the unit’s NVRAM, execute this
command or exit PidPRO.
For information on Save Channel Config to NVRAM, see Specify NVRAM Save Preference on page 5-16.
“R” Signifies Real Channel
“V” Signifies Virtual Channel