37
6. RS232 & RS485 REMOTE CONTROL
This chapter describes the operation of the PU1500W power supplies via the serial communication port. Details of the
initial set-up, operation via RS232 or RS485, the command set and the communication protocol are described in this
chapter.
6-1. Configuration
6-1-1. Default setting
The power supply is shipped with the following setting:
- Address
6
- Output
Off
- Baud-rate
9600
- Start up mode
Safe start
- RS232/485
RS232
- OVP
Maximum
- V out setting
0
- UVL
0
- I out setting
0
- Foldback
Off
6-1-2. Address setting
The power supply address can be set to any address between 0 and 30. Follow the instructions described below to
set the address.
(1) If the unit is in Remote mode (front panel RMT/LCL LED illuminates), press RMT/LCL button to put the unit into
Local mode.
(2) Press and hold for approximately 3sec. the RMT/LCL button. The VOLTAGE display will indicate the
communication port address.
(3) Using the VOLTAGE adjust encoder, select the address.
To preview the address at any time, press and hold the RMT/LCL button for approx. 3sec. The VOLTAGE display will
indicate the power supply address.
6-1-3. RS232 or RS485 selection
To select between RS232 or RS485 set the rear panel setup switch SW1-6 position to:
- Down for RS232
- Up for RS485
6-1-4. Baud rate setting
Five optional rates are possible: 1200, 2400, 4800, 9600 and 19200. To select the desired rate, the following steps
should be taken:
(1) If the unit is in Remote mode (front panel RMT/LCL LED illuminates), press RMT/LCL button to put the unit into
Local mode.
(2) Press and hold for approx. 3sec. the RMT/LCL button. The CURRENT display will show the communication
port Baud Rate.
(3) Using the CURRENT adjust encoder, select the desired Baud Rate.
6-1-5. 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
"6-6-2. Initialization control commands"
,
"6-6-4. Output control commands"
, Tables 6-4,6-5 and 6-6.
(2) There are two Remote modes:
- Remote:
In this mode, return to local can be made by the front panel RMT/LCL or via serial port
command RMT 0. Set the unit into Remote mode via serial port RMT 1 command.
- Local Lock out:
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 RMT/LCL button is not active. Set the unit into
Local Lockout mode via serial port RMT 2 command.
Содержание PU100-15
Страница 10: ......