TH2523 Series Operation Manual
Ver1.2
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soon as TH2523 sends a SRQ service request signal, it will set the status byte to 6. 6
bytes are RQS request service bytes and sometimes connects with serial poll to act
as the status byte. When TH2523 enables the SPOLL command, it will clear the
RQS request service bit and the SRQ string. Each bit in a status byte will enables a
SRQ service request. User can shield the status byte to judge which bit causes
TH2523 to set SRQ. For details, see “Status Byte”.
TRIGGER
（
GET
）
Trigger bus command. This command can be sent to a selected device or all listener
devices. It is necessary to assign TH2523 as a listener device firstly and then set the
trigger mode as bus trigger mode. Finally send trigger data.
6.2.4
SCPI (Standard Commands for Programmable Instruments)
SCPI is a new general command based on the IEEE488.2-1987 standard. (SCPI is the same as
TMSL, a system language for measurement testers adopted by HP.)
System for Component X
System for Component Y
BUS
Relative information for measurement tester
Common commands and query
Syntax and data structure
Remote control
D C B A A B C D
IEEE488.1 Standard
SCPI SCPI
Where
：
Level D shows the instrument functions
Level C shows the common system functions
Level B shows the information communication functions
Level A shows the interface functions (IF)
