75
83507013 Rev G
7.2.5 Setting the Unit into Remote or Local Mode
1. The unit will be put into Remote mode only via serial communication command.
Commands that will put the unit into Remote mode are:
RST PV n
OUT n PC n
RMT n
(for n values see Tables 7-3 and 7-4 and 7-5)
2. There are two Remote modes:
a) Remote: In this mode, return to local can be made by the front
panel REM/LOC or via serial port command RMT 0. Set
the unit into Remote mode via serial port RMT 1
command.
b) Local Lockout: In this mode the unit can be returned to Remote mode via
the serial port RMT 1 command or by turning off the AC
power until the display turns off, and then turn it to on
again. In local Lockout mode, the front panel REM/LOC
button is not active. Set the unit into Local Lockout mode
via serial port RMT 2 command.
7.2.6 RS232/485 Port in Local Mode
When the power supply is in Local mode, it can receive queries or commands. If a query
is received, the power supply will reply and remain in Local mode. If a command that
affects the output is received, the power supply will perform the command and change to
Remote mode.
Serial commands may be sent to set the status registers and read them while the unit is
in Local mode. If the Enable registers are set (refer to 7.11) the power supply will
transmit SRQ’s while in Local.
7.2.7 Front panel in Remote Mode
Front panel control in Remote mode is Disabled except for:
a) PREV: use to preview the Voltage and Current setting.
b) OVP/UVL: use to preview the OVP/UVL setting.
c) LOC/REM: use to set the unit into Local mode.
In Local Lockout mode, only the PREV and OVP/UVL pushbuttons are active.
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