Chroma 63200 Series, Operation & Programming Manual

Page: 76 / 126

High Power DC Electronic Load 63200 Series Operation & Programming Manual
PIN
1
2
3
4
5
6
7
9
8
IBM PC
DCD
RX
TX
DTR
GND
DSR
RTS
RI
CTS
Electronic Load
No Connection
RX
TX
No Connection
GND
No Connection
No Connection
No Connection
No Connection
5.2 GPIB Capability of the Electronic Load
GPIB Capability Response Interface
Functions
Talker/Listener
All electronic load functions are programmable over
the GPIB. The electronic load can send and receive
messages over the GPIB. Status information is sent
using a serial poll.
AH1, SH1,
T6, L4
Service Request
The electronic load will set the SRQ line true if there is
an enabled service request condition.
SR1
Remote/Local
In local mode, the electronic load is controlled from
the front panel but will also execute commands sent
over the GPIB. The electronic load powers up in
local mode and remains there until it receives a
command over the GPIB. Once the electronic load is
in remote mode,
REMOTE
will be shown on the front
panel LCD, all front panel keys except LOCAL are
disabled. Pressing
LOCAL
key on the front panel
will return to local mode. Local can be disabled
using local lockout, so only the controller or the power
switch can return to local mode.
RL1
5-2