FR2595174A1 - Communication console for exploiting electrical equipment cells - Google Patents

Abstract

Communication console for exploiting electrical equipment cells. The subject is a communication console for exploiting an electrical equipment cell provided with programmable equipment for protection, for counting and for measurement, characterised in that it comprises: - a communications interface 28 for transmitting data from the console to the cell and receiving same, - a display screen 2, - a key 3 for identifying the cell from the protection entities incorporated in this cell and from the values of the parameters of these protection entities, - a key 4 for scrolling various protection entities and the values of the parameters, - an incrementation key 5 and decrementation key 6 for the values of the parameters, - a programmed microprocessor 2 for ensuring, in particular, communications with the cell and screen management, the said microprocessor being associated with a memory 23, 24 containing all the data relating to the protection entities. Application to electrical equipment cells.

Description

Communication console for the operation of electrical equipment cells.

 The present invention relates to a communication console for the operation of electrical equipment cells and, more specifically, a console allowing dialogue with electrical equipment cells provided with programmable protection, counting and measurement equipment and a communication interface.

 An object of the invention is to provide an apparatus offering great facility for verifying the data relating to the measurement and protection cell counts and for possibly modifying the protection reference values.

 The device must be of flexible design so that the addition of new protection does not jeopardize its architecture.

 The device must be reliable and of low cost price.

 The subject of the invention is a communication console for the operation of an electrical equipment cell provided with programmable protection, metering and measurement equipment, characterized in that it comprises - a communication interface to transmit data from the console to the cell and receive it, - a display screen, - a key to identify the cell of the protections installed in this cell and the values of the parameters of these protections, - a scroll key for the various protections and parameter values, - an increment key and a decrement key for the parameter values, - a microprocessor programmed to ensure in particular communication with the cell and management of the screen, said microprocessor being associated with a memory containing all data relating to protections.

The invention is explained in more detail with reference to the accompanying drawing in which
- Figure 1 is a view of the front face of the console of the invention.

 - Figure 2 is a diagram showing the internal organization of the console.

 - Figures 3A and 3B show the flowchart of the microprocessor program.

 Figure 1 schematically shows the front face of the console of the invention.

 There are, on the front face of the console, referenced 1 - a screen (2) for alpha-digital display, - a key 3 for identifying the protections of the cell shown diagrammatically in 10, - a key 4 for scrolling the types of protections identified and their parameters, - a 5 decrement key - a 6 increment key - a lock 7 for authorization to modify the setpoints.

 All these organs are connected to a microprocessor internal to the console. It manages the duplex communication with the cell and manages the screen.

 The microprocessor includes a ROM memory relating to its own program and an EPROM library memory where all the protection functions, measurements or counting that may exist in a cell are listed - all the texts designating the various protection parameters, and all the values of these parameters.

 The operation of the console is as follows - the operator equipped with a communication console comes before a cell to be checked.

 The console establishes bilateral communication with the serial interface 11 of cell 10. It is advantageous to use an infrared or ultrasonic transmission (arrows F) which avoids any problem of electrical connections.

 The operator presses key 3 (identification), which has the effect of informing the console of the protections, measurements and counts existing in the interrogated cell. It initializes the sequential display of the window.

 The operator then presses key 1 (scrolling). It then appears on the screen preferably in order of derailing importance, the protection function performed and successively, the nature of the parameter examined and its current value.

 If the operator is authorized to modify these values (he then has the key to lock 7), successive presses on the 5 increment or 6 decrement keys will display the new values preprogrammed on this parameter in the cell .

Pressing the "scroll" key confirms the last value displayed, and causes the display of the next protection.

 FIG. 2 represents the internal organization diagram of the console of the invention.

 There is a microprocessor 20 linked by address buses 21 and data buses 22 with the ROM memory 23 relating to the console program and the library EPROM 24.

 The reference 25 designates a random access memory communicating by the transmission link 26 and the receiver link 27 and through the serial interface 28, with the interrogated cell.

 The keys 3, 4, 5, 6 and the lock 7 are connected to the system by a parallel interface 29. The display screen is shown, by the reference 2.

The assembly of FIG. 2 can be produced in the form of a programmed integrated circuit ensuring all the elementary functions (interfaces, memories, etc.)
An example of use sequence is given below 1. The operator comes to a cell and presses the 3 (identification) key.

The cell considered transfers the data of its functions, its parameters and their values into the memory of the microprocessor.

2. The operator presses key 4 (scrolling). The first function appears on the screen
CONSTANT TIME AMPEREMETRIC PROTECTION
HIGH THRESHOLD = 80 A 3. This value is correct the operator presses key 4, and the screen displays
CONSTANT TIME AMPEREMETRIC PROTECTION
LOW THRESHOLD = 60 A 4. This value is correct, the operator presses key 4 and the screen displays
CONSTANT TIME AMPEREMETRIC PROTECTION
HIGH THRESHOLD TIME = 60 ms 5. This value is correct. The operator presses key 4 and the screen displays:
CONSTANT TIME AMPEREMETRIC PROTECTION
LOW THRESHOLD TIME = 1200 ms 6. Since this value is insufficient, the operator presses key 5 (increment) and the screen displays:
CONSTANT TIME AMPEREMETRIC PROTECTION
LOW THRESHOLD TEMPO = 1250 ms 7. Since this value is still insufficient, the operator presses key 5 (increment) and the screen displays
CONSTANT TIME AMPERAMETRIC PROTECTION
LOW THRESHOLD TEMPO = 1300 ms 8. This setpoint being correct, the operator presses key 4 to call the next function. The screen displays:
ENGINE PROTECTION WITH THERMAL IMAGE
THERMAL CURRENT THRESHOLD = 5 TO 9. The sequence continues until all the protections and set values have been reviewed. The operator then goes to another cell for another sequence.

 Figures 3A and 3B show a flow diagram of the console program. The marks A, B and C are used to connect the two parts of the organization chart. BP means: press the key.

 The receiving routine is designed to wait for the response from the cell to the console. If the response does not occur within a given time or if the response is incorrect, the console can resend its message 3 times; If the answer still does not take place or if it remains incorrect an error message is displayed "transmission error: communication impossible".

Claims (1)

CLAIM Communication console for operating an electrical equipment cell provided with programmable protection, metering and measurement equipment, characterized in that it comprises - a communication interface (28) for transmitting data from the console the cell and receive it, - a display screen (2), - a key (3) to identify the cell of the protections installed in this cell and the values of the parameters of these protections, - a scroll key (4) various protections and parameter values, - an increment key (5) and a decrement key (6) for the parameter values, - a programmed microprocessor (2? to ensure in particular communication with the cell and management of the screen, said microprocessor being associated with a memory (23, 24) containing all the data relating to the protections.