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SERIAL CONTROL OF MULTIPLE UNITS
MPSD Commands
56 SuperView 3000 User Manual May 9, 2002
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which device they are working with. Since all MPSD commands are buffered,
Device 0 is responsible for echoing MPSD commands to the console.
:unassign - cancels MPSD mode for all connected devices
:unassign
This command removes all connected devices from MPSD mode. Device 0
then communicates with the console as a stand-alone device.
:select - selects a particular device to communicate
with
:select <device number|device name>
Selects a particular device to communicate with the console. Other devices
which do not match the device number or device name are deselected. If a non-
valid number or name is entered, the console cannot receive any responses to
commands or queries because none of the devices is selected. Entering the
:select command with a valid argument re-establishes communication with
the console.
If a non-MPSD device is connected to the end of the chain and a non-valid
device number or name is entered, the non-MPSD device is selected. However,
if the intent is to control a non-MPSD device in a chain of devices, use the
:auxdevice command.
:auxdevice - select a non-MPSD device
:auxdevice
To send serial commands to a non-MPSD device installed at the end of the
MPSD chain, use the :auxdevice command. If no such device is
connected, the console will not receive any response. When the non-MPSD
device is selected, an error message in response to the initial MPSD command
may be shown on the console because the non-MPSD device cannot recognize
it.
To re-establish communication with the MPSD devices, use either the
:assign or :select command.
:addname - assign a name to a particular device
:addname <device number> [<device name>]
This command allows you to assign a name to an MPSD device. The name is
permanently stored in the SuperView’s memory. The device can be connected
to different positions on the chain and the device’s name remains attached to it.
If the [device name] argument is not entered, the name of the selected
device is deleted.
Example—assign the name “Screen2” to the second Super-
View in the MPSD chain: