Hioki 3504-40 C HiTester, Instruction Manual

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8.6 Things to Know before Beginning Communication
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Output Queue _________________________________________________
The output queue is the area in the unit where response messages are stored.
Stored response messages are cleared once they are read by the controller of
the PC. The output queue is also cleared at the following times.
* The device is initialized
The output queue of the unit is 10 kB. If a response message exceeds this size,
a query error is generated and the output buffer is cleared.
For GP-IB, the output queue is cleared and a query error is generated if a new
message is received when there is data in the output queue.
Input Buffer ___________________________________________________
The input buffer is the area in the unit where received data is stored. The input
buffer is 10 kB. If data exceeding 10 kB was sent and the input buffer becomes
full, the GP-IB interface bus enters a wait state until free space becomes avail-
able. RS-232C cannot receive data that exceeds 10 kB.
8.6.2 About the Output Queue and Input Buffer
• The power is turned on
• The device is cleared*
• There is a query error • The power is turned on
Keep the length of one command under 10 kB.