5
PW3335A985-01
Output Queue and Input Buffer
Output Queue
Response messages are stored in the output queue until read by the controller. The output queue is also cleared
in the following circumstances:
•
Power on
•
Device clear
•
Query error
The output queue capacity of the instrument is 4,096 bytes. If response messages overflow the buffer, a query
error is generated and the output queue is cleared.
Input Buffer
The input buffer capacity of the instrument is 1,024 bytes.
If 1,024 bytes are allowed to accumulate in this buffer so that it becomes full, the GP-IB interface bus enters the
waiting state until space is cleared in the buffer.
The RS-232C and LAN interfaces will not accept data beyond 1,024 bytes.
Note: Ensure that the length of a single line never exceeds 1,024 bytes.
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