Chroma 16502 - Status Reporting Structure

Descriptions of GPIB Interface (Commands Same as RS232 Interface)
5-21
5.4 Status Reporting Structure
Status Reporting Structure
SRQ:
The 16502 Milliohm Meter can send an SRQ (Service Request) control signal when it requires
the controller to perform a task. When the 16502 generates an SRQ, it also sets Bit 6 of the
Status Byte Register, SRQ (Service Request) bit. Service Request Enable Register allows an
operation programmer to select which summary messages in the Status Byte Register may
cause service requests.
Output Queue
EV
EN
*
*
*
*SRE
*STB?
0
1
2
MAV
ESB
RQS
OPR
0
1
2
MAV
ESB
OPR
Logical OR
Service Request
Standard Byte Register
Operation Status Register
Logical OR
EN
EV
C