JP2000295348A - Circuit board device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve inspection efficiency by automatically performing several kinds of tests in each circuit board without changing the manual set functioning part of a back wiring board and also to prevent test leakage due to human error owing to automation. SOLUTION: Each circuit board 2 is provided with a set confirming part 11 which confirms a set content read to its set reading part 5, a set changing part 12 which changes the set content and a selecting part 13. The CPU common part 6 of each board 2 tests the part 5 by connecting the part 5 to a manual set functioning part 4 of a back wiring board 1, also, disconnects the connection from the part 4 in the part 13 after making the part 11 confirm the set content of the part 4, changes the set content in the part 12 and tests the part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard or the like in which a plurality of circuit boards (for example, package boards) having different functions are arranged side by side on a common backwiring board and connected, and external wiring is performed by the backwiring board. For a circuit board device.

[0002]

2. Description of the Related Art As shown in FIG. 1, a circuit board device of this type includes a single vertical back wiring board 1,
A plurality of vertical circuit boards 2 are arranged in parallel and connected to form a unit 3. In order to test each circuit board 2, conventionally, the following configuration is used.

That is, as shown in FIG. 2, a manual setting function section 4 for each circuit board 2 is provided on the back wiring board 1, and a setting reading section 5 and a CPU common section 6 are provided on each circuit board 2. In order to perform a test while the setting reading unit 5 is connected to the back wiring board 1, the manual setting function unit 4 is manually set and changed for each circuit board 2. A test had to be performed.

[0004]

The setting has to be carried out by the number of combinations of the setting functions, which requires an inspection man-hour. In addition, it was necessary to perform a test on a single board using a dedicated test facility, and then to connect to a back wiring board, which required a process division. Furthermore, since the work was performed manually, test omissions due to human error also occurred.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a back wiring board that is connected to a back wiring board without changing a manual setting function section of the back wiring board.
It is possible to automatically perform several kinds of tests in each circuit board, and it is possible to improve the inspection efficiency,
An object of the present invention is to provide a circuit board device that can prevent test omission due to human error by automation.

[0006]

According to the present invention, a plurality of circuit boards are arranged and connected to a back wiring board equipped with a manual setting function section, and a manual setting function section of the back wiring board is connected to each circuit board. A circuit board device equipped with a setting reading unit and a CPU common unit, each of which reads the setting contents of the setting unit. Each circuit board has a setting check unit that checks the setting contents read by the setting reading unit, and changes the setting contents. The setting common part of each circuit board is connected, the setting common part is connected to the manual setting function part of the back wiring board, and the setting reading part is tested. After confirming the setting by the setting check section, change the setting contents in the setting change section with the connection with the manual setting function section disconnected. And performing tests a constant reading unit.

The CPU common unit can change the setting contents by the setting changing unit several times, and test the setting reading unit each time the setting is changed. .

A selection unit for switching the connection between the manual setting function unit of the back wiring board and the setting reading unit and the connection between the setting change unit and the setting reading unit under the control of the CPU common unit It is good to prepare on a circuit board.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 3 shows the configuration of one circuit board in the circuit board device of the present invention. The back wiring board 1 is provided with a manual setting function unit 4 for each circuit board 2 as in the related art. In addition to the section 5 and the CPU common section 6, as a test facilitating section 10, a setting confirming section 11 for confirming the setting contents read by the setting reading section 5, a setting changing section 12 for changing the setting contents, and a selecting section 13 And The selection unit 13 switches the connection between the manual setting function unit 4 and the setting reading unit 5 and the connection between the setting changing unit 12 and the setting reading unit 5 under the control of the CPU common unit 6.

[0011] Each circuit board 2 can be tested as follows while being connected to the back wiring board 1.

The setting of the normal state is set in the selection unit 13 by the CPU common unit 6, and the setting reading unit 5 is connected to the manual setting function unit 4, and the setting reading unit 5 is tested. at the same time,
The setting contents of the manual setting function unit 4 are confirmed by the setting confirmation unit 11.

Next, the setting of the test mode state is set in the selection unit 13 by the CPU common unit 6, the connection from the manual setting function unit 4 is disconnected, and the setting change unit 12 and the setting reading unit 5 are connected. To do. Then, the CPU common unit 6
The setting is changed by the setting changing unit 12, and a test of the setting reading unit 5 is performed from the CPU common unit 6. The number of combinations of the setting contents of the setting change unit 12 can be changed, and the test can be automatically repeated.

[0014]

According to the present invention, several kinds of tests in each circuit board can be automatically performed without changing the manual setting function section of the back wiring board while the circuit board is connected to the back wiring board. It is possible to improve the inspection efficiency, and it is possible to prevent test omission due to human error by automation. Also, by standardizing the setting confirmation unit, the setting change unit, and the selection unit, which are test facilitating units, they can be commonly used for various types of boards.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a unit configuration of a circuit board device.

FIG. 2 is a block diagram showing a conventional configuration.

FIG. 3 is a block diagram showing a configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Back wiring board 2 Circuit board 3 Unit 4 Manual setting function part 5 Setting reading part 6 CPU common part 10 Test facilitation part 11 Setting confirmation part 12 Setting change part 13 Selection part

Claims (3)

[Claims] 1. A setting reading unit for connecting a plurality of circuit boards side by side to a back wiring board equipped with a manual setting function unit, and reading setting contents of a manual setting function unit of the back wiring board into each circuit board. And a circuit board device equipped with a CPU common unit, wherein each of the circuit boards includes a setting check unit that checks the setting contents read by the setting reading unit, and a setting change unit that changes the setting contents. The CPU common unit connects the setting reading unit to the manual setting function unit, performs a test of the setting reading unit, and causes the setting checking unit to check the setting contents of the manual setting function unit. A circuit for performing a test of a setting reading unit by changing setting contents in the setting changing unit in a state in which the connection with the setting unit is disconnected. Over de devices. 2. The circuit board device according to claim 1, wherein the CPU common unit changes the setting contents by the setting changing unit several times, and tests the setting reading unit each time the setting is changed. 3. A selection unit for switching the connection between the manual setting function unit and the setting reading unit of the back wiring board and the connection between the setting change unit and the setting reading unit under the control of the CPU common unit. 3. The circuit board device according to claim 1, wherein the circuit board device is provided on each circuit board.