Specific Commands - Chroma 63200 Series Operation & Programming Manual

High Power DC Electronic Load 63200 Series Operation & Programming Manual
Parameters 0 to 255
Example *SRE 24
Query Syntax *SRE?
Return Parameters <NR1>
Query Example *SRE?
*STB?
Description This query reads the Status Byte register. Note that the MSS
Bit Position
Bit Name
Bit Weight
MSS = master status summary
RQS = request for service
MAV = message available
Query Syntax *STB?
Return Parameters <NR1>
Query Example *STB?
Return Example 24
7.2

Specific Commands

The 63200 series products are built-in with the following specific GPIB commands.
7-4
Enable the QUES and MAV bit of the Service
Request Enable
Return the current setting for "Service Request Enable".
Read Status Byte Query
(Master Summary Status) bit is returned in Bit 6 instead of RQS bit.
This bit indicates if the electronic load has at least one reason for
requesting service. *STB? does not clear the Status Byte register.
It is cleared only when subsequent action has cleared all bits set.
Refer to Chapter 8 Status Reporting for more information about this
register.
Bit Configuration of Standard Byte Register
7 6
MSS
0
RQS
128 64
Return the contents of "Status Byte".
5 4 3
ESB MAV QUES
32 16 8
ESB = event status byte summary
QUES = questionable status summary
2 1 0
0 0 0
4 2 1