6.10 Led indicator
The PSC-232 module and the PSC-488 module have LEDs on the front panel.
LED PSC-232 module PSC-488 module
PWR
••
Power on
LSN
•
Listener mode
TLK
•
Talker mode
ERR
•
Device in error
RDY
•
Device ready for
command.
7 GPIB capabilities
The PSC-488 supports the following standard IEEE488.1-1987 capabilities.
ID code Capability
T6 Basic talker, Serial poll, Un address if MLA
•
L4 Basic listener, Un addressed if MTA
•
SH1 Source handshake
•
AH1 Acceptor handshake
•
SR1 Service request
•
RL0 Remote / local
PP0 Parallel poll
DC1 Device clear
•
DT0 Device trigger
C0 Controller
E2 Three state driver
•
7.1 Restrictions
Up to 15 devices can be connected to the IEEE 488
instrument bus (can be increased by with a bus
extender). The maximum cable length to connect a
group of instruments is 2 meters x number of devices
or 20 meters, whichever is less. Cable configurations
may be star, linear or a combination of the two. Each
of the devices must have a specific address code. The
PSC-488 module has a device address code switch on
the rear panel next to the GPIB connector. It has to be
set to the appropriate binary code for the desired
address.
PSC SERIES DELTA ELEKTRONIKA BV
May 2008 MANUAL page 6
GPIB CONNECTOR