THORLABS ITC502 Operation Manual page 106

3.9 Hints for setting up control programs
Flowchart for reading device messages
Figure 16
ITC500 / page 98
Start reading
Write query to
device (ibwrt ...)
Poll status byte
(ibrsp ...)
Is FIN-bit set ?
No
Yes
Is EAV-bit set ?
Yes
No
Query error-queue
(write ":SYST:ERR?"
Read device-
Poll status byte
message (ibrd)..
Is FIN-bit set ?
Read error-message
Is EAV-bit set ?
End
Flowchart for reading device messages
to the device)
(ibrsp ...)
No
Yes
(ibrd ...)
Yes
No