| 摘要 |
PROBLEM TO BE SOLVED: To properly detect connection error.SOLUTION: A control unit 11b collates port numbers of ports 11p0, 11p1 of a control apparatus 11 and ports 21p0, 22p0 of a device 20 to be connected, to obtain a first collation result. The control unit 11b obtains, from the control apparatus 12, a second collation result to be obtained by collating the port numbers of ports 12p0, 12p1 of a control apparatus 12 in a sub-system 10 including the control apparatus 11 and ports 21p1, 22p1 of the device 20 to be connected. The control unit 11b determines whether the ports 11p0, 11p1 and the ports 21p0, 22p0 are properly connected to each other, on the basis of the first and second collation results.SELECTED DRAWING: Figure 1 |
