3-50
BOP HIPWR 111315
3.5.3.5.3 TRIGGER OPERATION DIFFERENCES IN BIT 4886
The BOP/BIT 4886 only supports
*TRG
while the BOP 1KW supports
TRIGGER:SOURCE
EXTERNAL
,
BUS
and
IMMEDIATE
. The command
TRIG:SOUR BUS
must be sent before using
trigger in the BOP 1KW.
3.5.4
IEEE 488 (GPIB) BUS PROTOCOL
Table 3-17 defines the interface capabilities of the BOP 1KW power supply (Talker/Listener) rel-
ative to the IEEE 488 (GPIB) bus (reference document
ANSI/IEEE Std 488: IEEE Standard Digital
Interface for Programmable Instrumentation
) communicating with a Host Computer—Controller
(Talker/Listener). Tables 3-18 and 3-19 define the messages sent by the BOP, or received by the
BOP, via the IEEE 488 bus in IEEE 488 command mode and IEEE 488 data mode, respectively.
These messages are enabled during the “handshake” cycle, with the BOP power supply operat-
ing as either a Talker or a Listener. (See PAR. 3.5.3.1 to change the GPIB address.
TABLE 3-17. IEEE 488 (GPIB) BUS INTERFACE FUNCTIONS
FUNCTION
SUBSET
SYMBOL
COMMENTS
Source Handshake
SH1
Complete Capability (Interface can receive multiline messages)
Acceptor Handshake
AH1
Complete Capability (Interface can receive multiline messages)
Talker
T6
Basic talker, serial poll, unaddress if MLA (My Listen Address) (one-byte address)
Listener
L4
Basic listener, unaddress if MTA (My Talk Address) (one-byte address).
Service Request
SR1
Complete Capability. The interface sets the SRQ line true if there is an enabled ser-
vice request condition.
Remote/Local
RL1
Complete capability. Interface selects either local or remote information. In local
mode the BOP executes front panel commands, but can be set to remote mode via
IEEE 488 bus. When in Remote mode all front panel keys are disabled except
LOCAL function key. LOCAL function key can be disabled using keypad lockout
command (see Appendix B, PAR. B.136) so that only the controller or a power on
condition can restore Local mode.
Parallel Poll
PP0
No Capability
Device Clear
DC1
Complete Capability. BOP accepts DCL (Device Clear) and SDC (Selected Device
Clear).
Device Trigger
DT1
Respond to *TRG and <GET> trigger functions.
Controller
C0
No Capability
TABLE 3-18. IEEE 488 (GPIB) BUS COMMAND MODE MESSAGES
MNEMONIC
MESSAGE
DESCRIPTION
COMMENTS
ATN
Attention
Received
DAC
Data accepted
Received or Sent
DAV
Data Valid
Received or Sent
DCL
Device Clear
Received (see PAR. 3.5.3.1.2)
IFC
Interface Clear
Received
Содержание BOP-MG 1KW
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Страница 20: ...x BOP 1K 111315 FIGURE 1 1 HIGH POWER BOP SERIES POWER SUPPLY...
Страница 39: ...BOP HIPWR 111315 1 19 1 20 Blank FIGURE 1 3 BOP OUTPUT CHARACTERISTICS...
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Страница 56: ...2 16 BOP HIPWR 111315 FIGURE 2 5 PARALLEL CONFIGURATION LOCAL SENSING TYPICAL...
Страница 57: ...BOP HIPWR 111315 2 17 FIGURE 2 6 PARALLEL CONFIGURATION REMOTE SENSING TYPICAL...
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