| 摘要 |
<p>PURPOSE:To prevent such constitution where a file under processing is broken or an information processor set at the remote side of connection becomes unworkable even though a control operator drops the power supply level by mistake in a file processing state by using an information processor kept under the logical connection. CONSTITUTION:A station 19 produces the user declaration in case the station 19 gives an access a file contained in a memory resources controlled by a file server device 10. Then the station 19 starts the operation of the file after confirming that said user declaration is accepted by the device 10 and the logical connection is satisfied. When the user declaration is received by a communication control part 4 from the station 19 at the side of the device 10, the part 4 informs the reception of said declaration to a CPU 1. Thus the CPU 1 performs the preparation for communication, e.g., the allocation of a buffer to a main memory 2, etc., and at the same time transmits a state display signal under logical connection to a power supply control part 8. In this state display state, a logical connection mode is held until the end declaration is received after the end of a file operation.</p> |
