LG 3803 - Manual (Page 45)

8.7 Multiline Message Command
Table 8-3 lists the multiline message command types and a reply to each command.
Table 8-3 Reply of multiline message command
Type Name Description Reply
DCL Clearing GPIB buffer Yes
SPE Setting serial polling to State No
SPD Clearing serial polling No
PPU Clearing parallel polling No
Universal
Command
LLO
Setting all devices to local lockout status to inhibit
manual operation
No
UNL Canceling specified listener Yes
UNT Canceling specified talker Yes
SDC Clearing GPIB buffer Yes
PPC
Enabling line assignments of specified parallel poll to
listener in parallel polling
No
GTL Setting specified device to local Yes
GET Triggering specified device No
Address
Command
TCT
When there are two controllers in the system, the
controller specified to the talker operates as a master
No
8.8 Program Message Format
When controlling this instrument via the GPIB interface, send the program codes from the
controller to this instrument.
The program message consists of a single or multiple program codes.
The program code consisting of up to 255 bytes (including delimiter) per each program
message in ASCII code can be received.
If the program code contains unspecified header or parameter outside the settable
specified range, this program code is ignored even when the operation is performed.
8.9 Program Message Terminator
The terminator is used to delimit a program message. The following terminators CR can
be used even if CR is attached.
(1) LF
(2) LF+EOI
(3) EOI
Separator for reply message ・・・ ";" (3Bh in ASCII code)
Terminator for reply message ・・・ CR+LF+EOI
8.10 Program Code Format
The program code consists of header and data in accordance with requirements.
(1) Character
Use uppercase letters should be used for header and data.
(2) Delimiter between header and data
Insert a space (20h in ASCII code) between header and data.
Also insert a space before "?" for query.
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