Table of Contents
Advertisement
2.
There are two Remote modes:
1. Remote:
2. Local Lockout:
7.2.6
RS-232/RS-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 switch 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 Section 7.8) the power supply will transmit SRQ's while in Local mode.
7.2.7
Front Panel in Remote Mode
Front panel control in Remote mode is disabled except for:
-
PREView: use to preview the Output voltage and Output current settings.
-
OVP/UVL: use to preview the power supply OVP/UVL settings.
-
LOC/REM: use to set the unit into Local mode.
In Local Lockout mode, only the PREView and OVP/UVL pushbuttons are active.
7.3 REAR PANEL RS-232/RS-485 CONNECTOR
The RS-232/RS-485 interface is accessible through the rear panel RS-2332/RS-485 IN and RS-485 OUT
connectors. The connectors are 8 contact RJ-45. The IN and OUT connectors are used to connect power
supplies in a RS-232 or RS-485 daisy-chain to a controller. Refer to Figure 7-1 for the IN/OUT connectors.
SG
TXD
RXD
NC
Tx and Rx are used for R-S232 communication. Txd +/- and Rxd +/- are used for
RS-485 communication. Refer to RS-232 and RS-485 cables description for
In this mode, return to Local mode can be made by the front panel REM/LOC
button or via serial port command RMT 0. Set the unit into Remote mode via serial
port command RMT 1.
In this mode the unit can be returned to Remote mode via the serial port command
RMT 1 or by recycling the AC Input power. In Local Lockout mode, the front panel
REM/LOC button is not active. Set the unit into Local Lockout mode via serial port
command RMT 2.
NC
+
+
RXD
-
-
TXD
NC
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
OUT
Fig.7-1: Rear panel J3 IN/OUT connectors pinout
Figure 7-1: Rear Panel J3 IN/OUT Connectors Pinout
83-517-000 Rev. A
TXD
RXD
IN
NOTE
connection details.
59
RX
TX
-
RXD
-
+
TXD
+
NC
SG
Shield
(connector enclosure)
Advertisement
Table of Contents
