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Using multichannel operation – Xantrex Technology XDC 20-600 User Manual

Page 128

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Remote Operation

4–14

TM-XDOP-01XN

Using Multichannel Operation

Once the power supplies have been configured and connected, you may power
them on.

Power supplies controlled via multichannel have full capabilities, including
changing REM/LCL modes and calibration.

Any power supply may send multichannel commands, if they are connected to a
PC via RS-232 or GPIB.

A power supply will attempt to connect to the network:

on power up, and

when the multichannel address is changed.

Note that slave units have an automatic readdressing capability when in
multichannel mode. A slave unit will attempt another address when it is added to a
string with an address that is already taken. If no new address can be found then
the following error will be queued:

Error 1702, “Multichannel address taken”

is queued if the

power supply fails to connect.

SCPI Remote Control (RCONtrol) subregister will indicate the status of the
connection. A power supply that has been disabled will not have any bits set. Use
the SCPI command:

STAT:OPER:RCON:COND?

to query the condition of the multichannel interface.

See Table 4-13, “Remote CONtrol Sub-Register” on page 4–49 for a description
of the bits in this register.

TM-XDOP-01XN.book Page 14 Monday, July 17, 2006 11:19 AM