JP3010976B2 - Equipment operation data management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of managing facility data suitable for a production facility which repeats predetermined sequential operations sequentially, such as a normal production facility.

[0002]

2. Description of the Related Art Conventionally, the operation of components of equipment is controlled according to a program. For example, as shown in FIG. 4, the set 1 is completed in a state where the locate is returned, the keep relay H00 is set, and after this set, this set is performed until the operation of all the subsequent components is completed. State is maintained. Next, the set 2 is completed in a state where the locate has come out and the clamp 1 has returned, and the keep relay H01 is set. Next, when the gauge is finished with the clamp 1 protruding, the PSW completion 1 is set and the keep relay H02 is set. When the locate is returned, PSW completion 2 is set, and keep relay H03 is set. Next, when the clamp 2 comes out, the PSW completion 3 is set, and the keep relay H04 is set. Finally, when the ejector comes out and the unloading is completed, the completion of unloading is set, and the keep relay H05 is set.

As described above, in the conventional facility operation data management method, when a certain operation is completed as described above, processing is performed to maintain the set state in order.

[0004]

However, in such a conventional equipment operation data management method, keep relays are held in the order of operation of each component. It is necessary to use a large number of keep relays, and the holding state of the keep relays is frequently used. Therefore, when an emergency stop is performed due to a failure or the like, it may be difficult to recover the emergency stop.

In addition, a program for operating these components must be created not only in consideration of the set / reset state of the keep relay, but also in consideration of the timing of transition to this state. However, there is also a problem that it takes a very long time to create and remove a bug.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. By changing the operation mode of the keep relay, it is easy to recover from a failure, and it is also easy to create a program. The purpose of the present invention is to provide a method for managing equipment operation data that can be managed.

[0007]

The present invention SUMMARY OF THE INVENTION To achieve the above object, the sequence to thus first predetermined
Move from a position to a second position and follow the sequence
Components moving from a second position to a first position
Operation that manages the operating state of the equipment configured by
A method for managing a state, comprising:
Keep relay that is set or reset in response to
And the component moves from the first position to the second position.
The keep relay is set when the
When the return to the first position from the
Is a method of managing equipment operating state, characterized in that it has to be set.

[0008]

According to the present invention constructed as described above, since the state of holding the equipment operation data corresponds one-to-one with the operation state of each component of the equipment, it is very easy to create an operation program for the equipment. Becomes

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a method according to the present invention.

According to the method of the present invention, the setting and resetting of the keep relay are performed at the timing shown in FIG.

The keep relay H00 is set only when the locate is returned, and is automatically reset when the locate is not returned. The keep relay H01 is set only when the clamp 1 is in the return state, and similarly, the keep relay H02 is set only when the gauge is in the return state, and the keep relay H03 is set only when the gauge is in the return state. It is said.

Therefore, by the time the locate is changed from the return state to the exit state, the clamp is changed from the return state to the exit state, and the gauge is changed from the return state to the exit state, the keep relays H00 to H03 are turned off. Set and reset are sequentially performed as shown in FIG.

The keep relay H04 is set only when the locate is returned after the above processing is performed, the keep relay H05 is set only when the clamp 2 is in the out state, and further, the keep relay H05 is set. H06
Is set in a state other than the state in which the clamp 2 is out, and until the unloading is completed. Finally, the keep relay H07 is set only when the unloading is completed.

Therefore, also in this case, similarly to the above, the locate is returned from the outgoing state, the clamp 2 is in the outgoing state, the outgoing state is returned, and the gauge is returned from the outgoing state. In this state, the clamps 1 return to the return state, and the setting and resetting of the keep relays H04 to H07 are sequentially performed as shown in FIG. 1 until the unloading is completed.

The set and reset states of the keep relay are set to H00-H01-H02 as shown in FIG.
-H03-H04-H05-H06-H07.

The state of the data movement will be described below with reference to the form of the shift register shown in FIG. In this figure, the transition state of the keep relay in the production machine in which one series of processes is completed by the operation of 15 is shown. In the case of the step forward operation, H00 as shown in the figure.
To H01, H01 to H02,..., H14 to H15, that is, the data holding state is sequentially changed in the order of A to B to C to D to E to F. Conversely, in the case of step backward, the holding state is sequentially changed completely opposite to the above as shown in the figure. In this manner, by shifting the data holding bits one by one, it is possible to see at a glance which process is currently being processed. That is, the process corresponding to the held bit is the process currently being performed.

If the holding state is shifted in this manner, the keep relay functions as an operation command storage for the next state, and therefore, when creating a program for a production machine, the creation operation is extremely difficult. It will be easy. This is because it is not necessary to consider the timing of each keep relay as in the related art when creating a program. That is, only one keep relay in the ON state is present at any time when the production machine is in any process.

[0018]

As described above, according to the present invention, there is provided a method for managing equipment operation data for managing the operation state of equipment operating according to a predetermined sequence,
For each component of the facility, the component is in the first position
Set keep relay when moving from to the second position
And when the component returns from the second position to the first position
Reset the keep relay at
The operation position of each member is converted into data by the keep relay.
Can be held and the data
As the holding state changes in the order of operation of each component
become. Therefore, recovery after a failure is facilitated, and creation of a program is also facilitated.

[Brief description of the drawings]

FIG. 1 is a diagram showing an operation state of a keep relay operated by a method of managing equipment operation data according to the present invention.

FIG. 2 is a diagram that makes the operation shown in FIG. 1 easier to understand;

FIG. 3 is a diagram showing an operation state of a keep relay operated by a method of managing facility operation data according to the present invention, in an operation form of a shift register.

FIG. 4 is a diagram showing an operation state of a keep relay operated by a conventional facility operation data management method.

Claims (1)

(57) [Claims] 1. A defined sequence to thus first pre
Move from a position to a second position and follow the sequence
Components moving from a second position to a first position
Operation that manages the operating state of the equipment configured by
A method for managing a state, wherein for each of the constituent members, a set or
Providing a keep relay to be reset, wherein the component moves from the first position to the second position;
The keep relay is set when
When it returns to position 1, the keep relay is reset.
A method for managing the operation state of equipment, characterized in that: