BEHLMAN BL5000 Series, Руководство пользователя и техническое руководство

Страница: 33 / 50

7B REV. C
B-1
APPENDIX B
BL SERIES AC POWER SUPPLY
IEEE-488 INTERFACE SPECIFICATIONS
1.1 IEEE-488 BUS UTILIZATION
The BL Series Power Supplies incorporates an embedded TMA that is compatible with the electrical
and mechanical standards outlined in IEEE-STD-488. The IEEE-488 interface uses a TI LSI device to
implement all necessary talker/listener functions. This device is configured under software control to
support the following subsets:
SH1 - Source Handshake
AH1 - Acceptor Handshake
T8 - Basic Talker
L4 - Basic Listener
DC1 - Device Clear
RL0 - No Remote / Local Function
SR/0 - No Service Request
PP/0 - No Parallel poll response
DT/0 - No Device Trigger
C/0 - Not a controller
1.2 IEEE-488 BUS COMMANDS
1. Single-Line Commands
IFC - Clears GPIB interface
2. Multi-Line Command
DCL - Resets AC Power Supply to the quiescent state if a catastrophic failure is not present. The
only way to clear a catastrophic failure is to read the Power Supply's response by using the Status
command.
1.3 GPIB COMMUNICATION
The embedded TMA receives ASCII encoded command strings via a GPIB IEEE-488 according to
MATE System Control Interface Standard No. 28/06763 (IEEE-716 CIIL). Programmed I/O is utilized
to transmit and receive command strings after a talker/listener relationship is established. The AC
Power Supply supports all OPCODES, NOUNS, and MODIFIERS required by the stimulus module.
They are as follows:
OPCODES
FNC, FTH, INX, :CH/0, SET, SRX, SRN, CLS, OPN, RST, CNF, IST,
STA
MODIFIERS
FREQ, VOLT, CURR, VLT/0, VLT1
NOUN
ACS