Hioki SW1001, Instruction Manual, Page: 80 / 164

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Communication Method
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.
• When the power is turned on
• Query error
At a minimum, the device’s output queue can buffer a 64-byte response message.
When using the RS-232C interface, data in excess of that length may result in the output buffer
being cleared due to a query error.
When using the LAN or USB interface, query operation will enter a wait state once the buffer is full
and continue in that state until the data is received.
Input buffer
The input buffer can accommodate a minimum of 256 characters.
When using the RS-232C interface, data may be lost in the event of a buffer overrun.
When using the LAN or USB interface, operation will enter a wait state once the buffer becomes full
and continue in that state until the buffer is empty.