JPH02272252A - Operation control device for air conditioner - Google Patents

Abstract

PURPOSE:To facilitate operation by a method wherein in the case where an address of each of air conditioner devices is reset, an address setting means in a controller may transmit an address setting signal to each of the air conditioners and then a writing means in each of the air conditioners may write an address. CONSTITUTION:A final digit discriminating means 55 of an outdoor device 2 may transmit a final digit acknowledging signal to an indoor device 3 corresponding to the address when a setting part 52b transmits an address setting signal and a writing means 62 in the indoor device 3 is responded against this address setting signal. Then, the indoor device 3 may receive the final digit acknowledging signal, a final digit signal outputting means 65 may output a final digit signal to a remote controller 4 and then the remote controller 4 may display a final address to a final digit display part 4. In turn, if the outdoor device 2 sets one address #N, it may transmit a final address releasing signal to the indoor device 3 of an address xsiN-1 just before the former one and then the remote controller 4 in the indoor device 3 may terminate the display of the final digit display part 44. It may display the 21 final addresses in the indoor device 3 set in sequence and the final set indoor device 3 may continue to display the final address. With such an arrangement as above, it is possible to eliminate a manual setting operation and to simplify the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an operation control device for an air conditioner equipped with a plurality of air conditioning units, and particularly relates to address setting measures.

(Prior art) In general, air conditioners are
As disclosed in the publication, multiple air conditioning units are divided into multiple groups, one of the air conditioning units in each group is set as a master unit, the others are set as slave units, and the master unit is set as a central unit. While the controller is connected, some of the air conditioning units in each group are configured to have a remote control connected to them.

Then, the group address and unit address are set in the centralized controller, and each air conditioning unit is set with its own group address and unit address, so that each air conditioning unit has the same address among the data sent by the centralized controller and remote controller. It is configured to take in only the data and operate based on the data.

(Problems to be Solved by the Invention) In the above-mentioned air conditioner, address settings are input to the microcomputer using the central controller and the operation switch of the air conditioning unit, respectively.

However, this poses a problem in that the operator must manually enter the information when installing the air conditioning unit, which is time consuming. In addition, there are cases where the address setting is incorrect. For example, the same address may be set to two air conditioning units redundantly, resulting in a problem that normal air conditioning control is not performed.

The present invention has been made in view of these points, and it is possible to automatically set the address of each air conditioning unit, omit manual setting work, and reliably prevent erroneous address settings. This is the purpose.

(Means for Solving the Problem) In order to achieve the above object, the means taken by the invention according to claim (1) is as shown in FIG. Air conditioning unit (3), (3),
... are connected in series to form a closed circuit transmission path (13), and the controller (2) and each air conditioning unit (3),
(3), ... by transmitting and receiving control signals to and from the air conditioning units (3), (3).

The target is an operation control device for an air conditioner that controls...

The controller (2) has each air conditioning unit (
3), (3), ... in the state where the addresses of the respective air conditioning units) (3) have been reset.

(3) Address setting means (52) for sequentially transmitting address setting signals for setting different addresses is provided. Furthermore, each of the above air conditioning units (3) (3),...
- short-circuit the output side of the air conditioning unit (3) and the input side of the controller (2) in the transmission path (13) to prevent transmission to the air conditioning unit connected to the output side of the air conditioning unit (3). Bypass means (34) for blocking is provided, and writing means (62) for writing an address upon receiving one of the address setting signals transmitted by the address setting means (52); ) is provided with a cutoff means (63) that cuts off the bypass means (34) in response to a write completion signal outputted by the write completion signal.

Further, the means taken by the invention according to claim (2) is that in the invention according to claim (1), the address setting means (52) of the controller (2) is configured to set an address in the air conditioning unit (3) of the address to be set. A first control unit (52) that transmits a control signal.
a), a setting section (52b) that outputs an address setting signal if the response signal of the air conditioning unit (3) to the control signal of the first control section (52a) is not received, and the setting section (52).
Upon receiving the response signal from the air conditioning unit (3) to the address setting signal b), the air conditioning unit (3) at the address is set again.
3) is provided with a second control section (52c) that transmits a control signal. Furthermore, each air conditioning unit (3) (3
), .
), the address section (6) writes the address and sends a response signal to the controller (2).
2a), and an output section (62b) that outputs a write completion signal to the cutoff means (63) when the control signal of the self address written by the address section (62a) is received.

Further, the means taken by the invention of claim (3) is the invention described in claim (1) or (2) above, in which the controller (
2), the transmission path (
A closed loop detection means (53) is provided for detecting whether or not the transmission line (13) is in a closed loop, and when the closed loop detection means (53) detects an open loop of the transmission line (13), the address setting means (52) is The configuration includes an initial means (54) for initializing the setting process.

Moreover, the means taken by the invention according to claim (4) is that in the invention according to claim (3), each air conditioning unit (3)
, (3), . . . include an open loop means (64) that opens the transmission line (13) so that the closed loop detection means (53) detects an open loop of the transmission line (13) when the power is turned on.
).

The measures taken by the invention according to claim (5) are the means taken by the invention according to claim (5).
In the inventions 1) to (4), each air conditioning unit (3).

(3), . . . are display means (62) indicating completion of address setting upon receiving the write completion signal output by the writing means (62).
35).

In addition, the means taken by the invention according to claim (6) are the means taken by each air conditioning unit (
A remote control switch (4) is connected to 3), (3), . 42).

In addition, the means taken by the invention according to claim (7) is the method taken by the controller (2) in the invention according to claims (11 to (6)).
) is provided with tail discrimination means (55) for discriminating the final address set by the address setting means (52) and transmitting a tail recognition signal to the air conditioning unit (3) of the final address. ), (3), . . . include tail signal output means for outputting a tail signal to the remote control switch (4) connected to the air conditioning unit (3) upon receiving the tail recognition signal from the tail discrimination means (55). (6
5) is provided, and the remote control switch (4) is provided.
) is provided with a tail display section (44) that receives the tail signal from the tail signal output means (65) and displays the final address.

(Function) With the above configuration, in the invention according to claim (1), each air conditioning unit (3) when the power is turned on.

(3) When the addresses of . . . have been reset, the address setting means (52) of the controller (2) transmits an address setting signal to each air conditioning unit (3), The address setting signal causes the writing means (52) of each air conditioning unit (3) to write an address. Specifically, in the invention according to claim (2), first,
When the first control section (52a) transmits the control signal, since no address has been set at this time, none of the air conditioning units (3) responds. Subsequently, the setting section (52b) transmits an address setting signal. At this time, the controller (2
), the bypass means (34) of the air conditioning unit (3) closest to
3), and the air conditioning unit at the 1st door (
3) only receives the address setting signal, and the address part (6
After writing the address, the controller (2a) transmits a response signal, the controller (2) receives the response signal, and the second controller (2a) receives the response signal.
52c) outputs a control signal. Subsequently, the air conditioning unit (3) to which the address has been set receives this control signal, and
The output section (62b) outputs a write completion signal, and the cutoff means (62b) outputs a write completion signal.
63) shuts off the bypass means (34), and the next air conditioning unit (3) becomes capable of transmitting and receiving data to and from the controller (2),
Addresses are set in the same manner as described above, and addresses are sequentially set for each air conditioning unit (3), (3), . . . .

Further, in the invention according to claim (3), the controller (2
), the closed loop detection means (53) detects whether the transmission line (13) is a closed loop or not, and if it is an open loop, the initial means (54) initializes the setting process, Restart the configuration process from the beginning. Also,
In the invention according to claim (4), when the power is restored after a momentary power outage, the open loop means (64) of the air conditioning unit (3) makes the transmission line (13) open loop, and the closed loop detection means (53) This open loop is exposed and the address setting process is performed from the beginning.

Further, in the invention according to claim (5), when the address is set, the display means (35) of each air conditioning unit (3), (3), ... displays the completion of setting, and according to claim (6). In the invention according to the above, the display section (42) of the remote control switch (4) displays the address number. Further, in the invention according to claim ('7), the end determination means (65) of the controller (2) determines the set final address, and the remote control switch (4) A tail display section (44) displays the final address.

(Effect of the invention) Therefore, according to the inventions of claims (1) and (2),
Since addresses are automatically set for each air conditioning unit (3), (3), . . . , manual setting operations by an operator or the like can be omitted, and the work can be simplified. Furthermore, incorrect address settings can be reliably prevented, accurate air conditioning control can be performed, and services can be provided efficiently.

Further, in the invention according to claim (3), since the address setting is performed by checking the closed loop of the transmission line (13), it is possible to reliably prevent duplicate settings, etc.
In the invention according to 4), if a momentary power outage or the like occurs during address setting, the address setting is redone, so erroneous settings can be reliably prevented.

Furthermore, in the inventions according to claims (5) and (6), since the completion of address setting is displayed, it is possible to accurately determine whether the address setting is complete, and it is possible to easily detect incorrect wiring, etc. can.

In addition, in the invention related to the claim (sword), since the final address that has been set is displayed, it is possible to accurately determine in which air conditioning unit (3)* the setting process has been completed, and in the wiring Mistakes etc. can also be detected reliably.

(Example) Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 2, (1) is one outdoor unit (2
) is connected to a plurality of indoor units (3), (3)..., and each indoor unit (3), (3),... is equipped with a remote control switch ( 4) (hereinafter referred to as the remote control) is connected. Although not shown, the outdoor unit (2) is internally equipped with a compressor, a four-way switching valve for cooling and heating, and an outdoor heat exchanger, while the indoor unit (3) is internally equipped with a An indoor heat exchanger and an expansion mechanism are provided, the indoor unit (3) as opposed to the outdoor unit (2).

(3), . . . are connected in parallel so that refrigerant can be circulated.

Furthermore, the outdoor unit (2) has a built-in CPU (5) and constitutes a controller that controls each indoor unit (3), (3), etc., and the CPU (5) has a built-in CPU (5). A transmitting section (21) consisting of a photodiode and a receiving section (22) consisting of a photocoupler including a photodiode and a phototransistor are connected.

On the other hand, the indoor unit (3) has a built-in CPU (6) and constitutes an air conditioning unit that air-conditions each room. The section (31) and the receiving section (32) are connected, and the transmitting section (33)
It is connected to the remote control (4) via.

In addition, the above outdoor unit (2) and each indoor unit (3)
, (3), ... means two crossover wiring (11) (11)
Each room/unit (3), (3
), ... are connected in series. In other words, each indoor unit (
The receiving section (32) and the transmitting section (31) of 3) are connected in order, and the transmitting section (31) of the final indoor unit (3) connects to the transmitting section of the outdoor unit (2) via the shorting plate (12). (21
), forming a closed circuit transmission path (13). Each indoor unit (3) has a transmission line (
13), the output side of the indoor unit (3) and the input side of the outdoor unit <2) are short-circuited to connect the subsequent indoor unit (
A bypass means (34) is provided for blocking transmission to the indoor unit (3) and the transmitting section (21) of the outdoor unit (2). ! (34a) and a phototransistor (34b) interposed in the bypass path (34a).
) and the photodiode (3) connected to the CPU (6).
4c) is provided with a photocoupler (34d).

The CPU (5) of the outdoor unit (2) is configured with an air conditioning control means (51) that controls the air conditioning of the indoor units (3), (3), and so on. , (3), address (#0), (
#1) Address setting means (
62) is configured. The address setting means (52)
is each indoor unit (3).

(3) A first control unit (52a) that transmits a data signal as a control signal to the indoor unit (3) at the address set when the addresses of (3), . . . are reset; ), which outputs an address setting signal when there is no response signal to the data signal of the setting section (52b); and a second control section (52b) which transmits the data signal again when there is a response signal to the address setting signal of the setting section (52b). 52c).

Furthermore, the CPU (5) of the outdoor unit (2) includes:
A closed loop detection means (53) detects whether or not the transmission path (13) is a closed loop before the address setting means (52) transmits a data signal etc.;
) detects an open loop in the transmission line (13), an initial means (54) that initializes the address setting process, and an address signal of the address setting means (52) are provided to determine the final address to be set and determine the final address. A tail determining means (55) is configured to output a recognition signal.

In addition, the CPU (6) of the indoor unit (3) has:
an air conditioning means (61) that receives a control signal from the outdoor unit (2) and air-conditions each room; and a writing means (61) that receives an address setting signal from the address setting means (52) and writes an address.
62), and a cutoff means (63) that cuts off the bypass means (34) in response to a write completion signal from the write means (62). The writing means (62) includes an address section (62a) that writes an address and sends a response signal to the outdoor unit (2), and outputs a write completion signal upon receiving a data signal from the second control section (52c). and blocking means (63)
is the phototransistor (34b) of the bypass means (34).
).

Furthermore, the CPU (6) of the indoor unit (3) includes:
When the power is turned on, the closed loop detection means (53) detects the transmission line (
13) for a predetermined period of time (e.g.,
2 seconds) Open loop means (64) for turning off the transmitter (31)
), and tail signal output means (65) which receives the tail recognition signal from the tail discrimination means (55) and outputs the tail signal. Furthermore, a light emitting element (35) is connected to the indoor unit (3) in series with the photodiode (34c) of the bypass means (34).
) is the photodiode (34c) after the address setting is completed.
) constitutes a display means that turns off when the switch is turned off, indicating that the setting is complete.

On the other hand, the remote control (4) has a built-in CPU (41) and controls the indoor unit (3).
1) is connected to a display section (42) and an input section (43), as well as a tail display section (44). The display section (43) is configured to receive the address signal of the indoor unit (3) and display the set address number, and the tail display section (44) receives the tail signal of the tail signal output means (65). is configured to display the final address.

Next, the address setting operation of the air conditioner (1) will be explained based on the control flow of the outdoor unit (2) shown in FIG. 4.

First, after the power is turned on and initialized, step ST
In I, it is determined whether the mode is normal transmission mode or not, and since the flag is reset when the power is turned on, step S
The process moves to step ST2, and it is determined whether the command code is the closed loop check command CLC. Since this command code is set to the closed loop check command CLC when the power is turned on, the process moves to step ST3, and if the result of the closed loop check is normal twice or more. Determine whether or not. That is, the closed loop detection means (53) checks the transmission line (13), checks whether the transmission line (13) is a closed loop or an open loop, and if it forms a closed loop, step ST4 In step ST5, the abnormality counter of the closed loop check is set to zero, and in step ST5, the command code is set from the closed loop check command CLC to the transmission/reception command XR, and the process returns to step ST1 to repeat the above-mentioned operations.

Then, in the next processing operation, the determination in step ST2 is No because it is a send/receive command, and step ST2
6, it is determined whether the operation code is data transmission code 00 for transmitting a data signal which is a control signal, and since the data transmission code is set to 00 when the power is turned on, ) is the first address #0
The data signal is transmitted to the indoor unit (3) of the indoor unit (3). In other words, in this case, since it has been initialized, transmission starts from the indoor unit (3) with the youngest address #0, while
Since each indoor unit (3), (3), ... is initialized when the power is turned on and all addresses are reset, the indoor unit (3) corresponding to the address transmitted by the first control section (52a) does not exist, and none of the indoor units (3), (3), ... receives the data signal.
No response signal will be sent. Therefore, step S
At T7, the transmission is determined to be abnormal, and the process moves to step ST8, where it is determined whether or not the abnormality code is an error. A time error has occurred, and the process moves to step 5T10, sets the command code to the closed loop check command CLC, increments the transmission error count in step 5T11, and determines whether the transmission error counter has reached 4 in step 5T12. The process returns to step ST1 until the time is reached. That is, if the first control unit (52a) transmits the data signal four times and does not receive any response signal, the determination in step 5T12 becomes No, and step 5713
, reset the transmission error counter, and proceed to step 5.
At T14, it is determined whether or not the connection flag is set, and since the connection flag is currently reset, step 5T1
5, operation code address setting code 3
The value is set to 0, the process returns to step ST1, and the above-described operation is repeated.

Then, in the next processing operation, the closed loop detection means (
53) checks the closed loop of the transmission line (13) in step 5T3), and then from step ST6 to step 5
Moving on to T16, the setting section (5) of the address setting means (52)
2b) outputs an address setting signal and determines whether the transmission has been successfully completed. That is, when the setting section (52b) outputs an address setting signal, this setting signal is received by the currently first indoor unit (3), while in this case, the bypass means (34) of all indoor units (3) are initially The first indoor unit (3)
receives the address setting signal, but the indoor units (3), (3), .
An address setting signal is never sent to ....

Then, in the indoor unit (3) that has received the address setting signal, the address section (62a) of the writing means (62) writes the address and sets the address, and outputs a response signal to the outdoor unit (2). Incidentally, at this stage, the bypass means (34) is conductive. Based on this response signal, the outdoor unit (2) determines whether the transmission is normal, and performs determinations from step 5T16 to steps 5T17 to 5T19, and determines whether the data link code of the received data is 1 or not, and whether the address of the received data and the sending address are It is determined whether they match or not, and whether the operation of the received data matches the transmission operation. If each determination is YES, perform the operations of steps 5T20 to 5T22 and set the operation code to the data transmission code OO. Then, the transmission abnormality counter is cleared, the transmission abnormality flag is reset, and the process returns to step ST1.

Subsequently, after performing the operations of steps STI to ST6 described above and performing a closed loop check (step 5T3), in step ST6, the second control section (52c) sends a data signal to the indoor unit (3) at the set address. Output. Since this indoor unit (3) has the address set as described above, it receives the data signal, transmits a response signal to the outdoor unit (2), and also sends a response signal to the output section (62b) of the writing means (62). ) outputs a write completion signal to the cutoff means (63), which turns off the photodiode (34c) of the bypass means (34) and cuts off the bypass path (34a). This enables transmission and reception between the next indoor unit (3) and outdoor unit (2), while the indoor unit (3) with the address set
At this time, when the photodiode (34c) is turned off, the light emitting element (35) is turned off, indicating completion of address setting, and the address signal of the writing means (62) is displayed on the display section (42) of the remote control (4). Displays the address number.

On the other hand, the outdoor unit (2) determines whether the transmission is normal in step ST7 based on the response signal of the indoor unit (3), and from step ST7 performs determinations in steps 5T23 to 5T25 to determine whether the data link code of the received data is 1 or not. , determine whether the address of the received data matches the sending address, and whether the operation of the received data matches the sending operation, and if each judgment is YES, perform the operations of steps 5T26 to 5T29, Increments the number of connected indoor units (3), resets the transmission error flag, clears the transmission error counter, and executes the closed loop check command CLC for the command code.
Set to .

After that, the process moves to step 5T30, and it is determined whether or not the number of recognized connected devices is 1. If the address is #0, as is currently the case, steps 5T31 to 5T33 are determined, and whether or not the line inspection mode is selected, and the model code is 2. If it is in line inspection mode, the maximum number of connected units is set to 1 in step 5T34. Also, the model code is determined from the model code of the indoor unit (3) at address #0, and if it is for two units. If this is the case, the maximum number of connected devices is set to 8 in step 5T35, and if it is for 1 device, the maximum number of connected devices is set to 2 in step 5T36.The process moves from steps 5T34, 5T35, and 5T36 to step 5T37, and the sending address is set to the maximum number of connected devices. Determine whether or not it exceeds.

Note that when the address setting is completed, the process moves from step 5T30 to step 5T37. Then, if the sending unit address does not exceed the maximum number of connected units, steps 5T38 to 5
The operation T40 is performed, the connection flag is set, the received data is stored, the sending unit address is incremented, and the process returns to step STI.

This completes the address setting of the first indoor unit (3), and thereafter, the above-mentioned operations are repeated to set the addresses of the indoor units (3) in order.

After that, when the address of the final indoor unit (3) is set, the address of the first control unit (5) is first set in step ST6 as described above.
2a) does not receive a response signal after transmitting the data signal, so the setting section (52b) subsequently transmits an address setting signal. Since no response signal is received for this address setting signal, steps 5T16 to 5T4
1, it is determined whether the abnormal code is an error or not. Since it is not an error, the process moves to step 5T42, and it is determined whether the abnormal code is a time error. Since there is no response signal, the time error is determined.
Error occurs, perform steps 5T43 to 5T45, set the command code to the closed loop check command CLC, increment the transmission error counter, determine whether the transmission error counter reaches 4, and repeat until it reaches 4. Return to step ST1. If the address setting signal is transmitted four times and no response signal is received, steps 5T46 to 5T50 are performed from step 5T45, the transmission error counter is reset, the transmission error flag is set, and the connection flag is set. If it is not set, the system transmission error flag is reset, and the number of connected devices error flag is reset. After that, the judgments in steps 5T51 to 5T57 are made to determine whether the system transmission error flag is set, whether the number of connected devices error flag is set, whether the number of connected devices is 1 or more, and whether there are mixed models. It is determined whether the connected devices are present, whether the protocols match, whether the number of connected devices is zero, and whether the number of connected devices matches the number of connected devices. Next, if each of the above requirements is satisfied, steps 5758 to 5T6
0, set the sending unit address to 0, set the command code to closed loop check command CLC, set the normal transmission mode, and return to step 1. From this step STI, move to the normal transmission mode, and start air conditioning control. The operation begins.

The above operation is when the address setting is performed normally. If an error occurs during the address setting, for example,
When the closed loop detection means (53) detects an open loop in the transmission line (13), the process moves from step ST3 to step 5T61, in which the closed loop check abnormality counter is incremented, and in step 5T62, it is determined whether the closed loop check abnormality counter has reached 2 or not. The process returns to step ST1 until the value becomes 2, and when an open loop is detected twice in a row, the process returns to step ST5.
The process moves from T62 to step 5T63, where a system transmission abnormality flag is set, and the closed loop check abnormality counter is reset at step 5T64.

After that, the process moves to step 5T51, and since the system transmission error flag is set (step 5763), steps 5T65 to 5T70 are performed, the sending unit address is returned to zero, and the command number is set to the closed loop check command CLC. , returns the number of connected devices to zero, resets all connection flags, clears the model code and protocol, sets the operation code to data transmission code 00, and returns to step ST1.

In other words, all address setting processing is cleared and address setting is restarted from the beginning from the initialized state.

Also, during the address setting process, the indoor unit (
When one of the indoor units (3) is turned on again due to a momentary power outage, the open loop means (64) of the indoor unit (3)
turns off the transmitter (31) for 2 seconds and opens the transmission line (13). As a result, the closed loop detection means (53) detects an open loop in step ST3 described above, and the address setting is restarted from the beginning by the operations in steps 5T63 to 5T70 as described above.

Further, in the above control flow, the first control unit (52a)
If the transmission is not completed normally for the data signal, the process moves from step ST7 to step ST8, and if the error code is incorrect, the process moves to step 5T71, where the connection flag is set and the processes of steps 5TIO to 5T14 are performed. After that, the process moves to step 5T72, sets the system transmission abnormality flag, and steps 5T51 to 57 described above are executed.
Steps 65 to 70 will be performed and the address setting will be redone. Further, if the transmission is not completed normally in response to the address setting signal of the setting section (52b), step 5T1
6, the process moves to step 5T41, and if the abnormal code is incorrect, a connection flag is set in step 5T73, and the process proceeds to step 5T74 via steps 5T43 to 5T48.
After setting the system transmission error flag in step 5
From T51, perform steps 5T65 to 5T70,
You will have to redo the address settings. Furthermore, if the sending unit address is greater than the maximum number of connected units in step 5T37, it is determined that the connection is over, and the abnormal flag for the number of connected units is set in step 5T75, and steps 5T51 and 5
From T52, perform steps 5T65 to 5T70,
You will have to redo the address settings. Furthermore, in steps ST9 and 5T42, if the abnormal code is not found due to a time error, transmission is not possible, so step 5T7 is performed.
6 and step 5T77, set the command code to the closed loop check command CLC, and proceed to step ST.
Return to I.

On the other hand, if the data link code of the received data is not 1 in steps 5T18 to 5T19, the process moves to step 5T73, and steps 5T23 to 5T2
If the data link code of the received data is not 1 in step 5T71, the address setting is redone as described above. Also, steps 5753 to 5T5
If the number of recognized connected devices is not 1 or more at 5, 5T57, the process moves to step 5T65 and the address setting is redone.

The above steps ST1 to ST5T60 constitute an address setting means (52), and steps ST2.
ST3, 5T61 and 5T62 cause the closed loop detection means (53) to perform steps 5T63.5T51, 5T65~
5T70 constitutes an initial means (54).

FIG. 5 shows a control flow of the outdoor unit (2) that displays only the final address of the addresses set at the time of address setting, and the display operation of this final address will be explained.

First, when the outdoor unit (2) starts the display operation,
After setting address number N to zero in step 5TI01, address # is set to zero in step 5T102.
A normal data signal is transmitted to the indoor unit (3) at address #0, and then the process moves to step 5T103, where it is determined whether or not there is a normal response signal from the indoor unit (3) at address #0. Then, upon receiving the response signal,
Since the address has been set, the process moves to step 5T104, increments address number N, and steps 5T1 described above.
02, repeat the above operation, and set the address number N.
Each indoor unit (3) in this order.

(3) Determine whether there is a response signal for .

This operation is repeated, and if there is no response signal from the indoor unit (3) in step 5T103, the process moves to step 5T105, and the indoor unit (3) at address #N is addressed based on the address setting code 30 in step 5T15. Address #N is set to the indoor unit (3) by transmitting the address setting signal #N. Thereafter, the process moves to step 5T106, where the tail discrimination means (55) transmits a tail recognition signal to the indoor unit (33) at address #N, and the process moves to step 5T107, where the tail recognition means (55) transmits a tail recognition signal to the indoor unit (33) at address #N.
3) Determine whether there is a response signal. and,
Upon receiving the response signal, the process moves to step ST10g,
After instructing the indoor unit (3) at the previously set address #N-1 to cancel the tail signal, the process moves to step 5T109, and the indoor unit (3) at the address #N set this time is instructed to cancel the tail signal.
Normal transmission is performed, and the process moves to step 5T104, where the address number N is incremented and the above-described operation is repeated.

That is, when the setting section (52b) transmits an address setting signal and the writing means (62) of the indoor unit (3) responds to this address setting signal, the end determining means (55) of the outdoor unit (2) Since the currently set address is the final address among the addresses set so far, a tail recognition signal is sent to the indoor unit (3) of this address.

Then, the indoor unit (3) receives the tail recognition signal, and the tail signal output means (65) outputs the tail signal to the remote controller (4), and the remote controller (4) displays the final address on the tail display section (44). Display.

On the other hand, when one address #N is set in the outdoor unit (2), the address #N immediately before that address #N is set.
-1 is no longer the final address, so a final address release signal is sent to the indoor unit (3) with the previous address #N-1, and the remote controller (4) of the indoor unit (3) is
) will stop displaying the tail display section (44). Then, the 21 final addresses of the indoor units (3) set one after another are displayed, and the last set indoor unit (3) continues to display the final address.

Step 5T103.5 of the control flow in FIG.
T105 and 5T106 constitute the tail determining means (55 units).

Therefore, since the addresses are automatically set for each indoor unit (3), (3), etc., manual setting operations by the operator etc. can be omitted, and the work can be simplified. . Furthermore, incorrect address settings can be reliably prevented, accurate air conditioning control can be performed, and services can be provided efficiently.

In addition, since the address is set by checking the closed loop of the transmission line (13), it is possible to reliably prevent duplicate settings, etc. Also, if a momentary power outage occurs during address setting, for example, the outdoor unit (2) is polling address #4, indoor unit (3) at address #2
Even if there is a momentary power outage, the indoor unit (3) at address #2
Since the address setting is restarted from the beginning without receiving the setting signal of address #4, erroneous setting can be reliably prevented.

Furthermore, since the completion of address setting etc. is displayed on the indoor unit (3) and the remote control (4), it is possible to accurately determine whether the address setting has been completed, and the setting completion display is displayed on all indoor units (3).

If (3), .

In addition, since the final address that has been set is displayed, it is possible to accurately determine which air conditioning unit (3) the setting process has been completed, and wiring errors can be reliably detected. .

In this embodiment, the address is set using the outdoor unit (2) as the controller, but the address may be set using a centralized controller or the like.

Further, although the present embodiment has been described with respect to a multi-type air conditioner, the present invention is not limited to a multi-type air conditioner.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention. 2 to 5 show embodiments of the present invention, FIG. 2 is a general schematic diagram of the air conditioner, and FIG. 3 is a circuit block diagram of the main parts thereof. FIGS. 4 and 5 are control flow diagrams showing address setting processing. (1)...Air conditioner (2)...Outdoor unit (3)...Indoor unit (4)...Remote control (5), (6)...CPU (13)...Transmission Path (34)...Bypass means (35)...Light emitting element (42)...Display section (44)...Final display section (52)...Address setting means (52a)...No. 1 control section (52b)...Setting section (52c)...Second control section (53)...Closed loop detection means (54)...Initial means (55)...Tail discrimination means (62) ...Writing means (62a) ...Address section (62b) ...Output section (63) ...Shutoff means (64) ...Open loop means (65) ...Tail signal output means No. 4 Figure (2 of 1) Figure 4 of Figure 4) Figure 4 (6 of f) Figure 4 (8 of f) Figure 4 (7 of 1,000) Figure 4 (9 of 1)

Claims (7)

[Claims] (1) A plurality of air conditioning units (3), (3), . . . are connected in series to the controller (2) forming a closed circuit transmission path (13). An operation control device for an air conditioner that controls the air conditioning units (3), (3), . . . by transmitting and receiving control signals between the air conditioning units (3), (3), . , The controller (2) has each air conditioning unit (3), (
3) Address setting means (52) is provided for sequentially transmitting an address setting signal for setting a different address to each of the air conditioning units (3), (3), . . . in a state where the addresses of . On the other hand, each of the air conditioning units (3), (3), ... is connected by short-circuiting the output side of the air conditioning unit (3) and the input side of the controller (2) in the transmission line (13). unit(
Bypass means (34) for blocking transmission to the air conditioning unit (3) connected to the output side of 3) is provided, and
When one of the address setting signals transmitted by the address setting means (52) is received, the writing means (52) writes the address.
62), and a cutoff means (62) for cutting off the bypass means (34) in response to a write completion signal output by the write means (62).
63) An operation control device for an air conditioner, characterized in that it is provided with: (2) In the operation control device for an air conditioner according to claim (1), the address setting means (5) of the controller (2) is provided.
2) is a first control unit (52a) that sends a control signal to the air conditioning unit (3) at the address to be set, and receives a response signal from the air conditioning unit (3) in response to the control signal from the first control unit (52a). If not, the setting section (52b) outputs an address setting signal, and when it receives a response signal from the air conditioning unit (3) to the address setting signal of the setting section (52b), it sends a control signal again to the air conditioning unit (3) at the address. The writing means (6) of each air conditioning unit (3), (3), ... are provided.
2) includes an address section (62a) that writes an address and sends a response signal to the controller (2) upon receiving the address setting signal from the setting section (52b);
An output section (62a) outputs a write completion signal to the cutoff means (63) upon receiving the control signal of the self address written by the output section (62a).
62b). An operation control device for an air conditioner. (3) In the operation control device for an air conditioner according to claim (1) or (2), whether the transmission line (13) is connected to the controller (2) in a closed loop before the address setting means (52) transmits the data. Closed loop detection means (53
), and initial means (5) for initializing the setting process of the address setting means (52) when the closed loop detection means (53) detects an open loop of the transmission line (13).
4) An operation control device for an air conditioner, characterized in that it is provided with: (4) In the operation control device for an air conditioner according to claim (3), each air conditioning unit (3), (3), .
3) An operation control device for an air conditioner, characterized in that an open loop means (64) is provided to open the transmission line (13) so as to detect the open loop. (5) In the operation control device for an air conditioner according to any one of claims (1) to (4), each air conditioning unit (3), (3), . . . has a writing means. An operation control device for an air conditioner, comprising display means (35) for receiving a write completion signal outputted by (62) and indicating completion of address setting. (6) In the operation control device for an air conditioner according to any one of claims (1) to (5), each air conditioning unit (3), (3), . . . is provided with a remote control switch ( 4) is connected to the remote control switch (4), and the remote control switch (4) is provided with a display section (42) that displays an address number based on an address signal output from the air conditioning unit (3). Operation control device. (7) In the operation control device for an air conditioner according to any one of claims (1) to (6), a controller (
2) is provided with a tail discrimination means (55) for discriminating the final address set by the address setting means (52) and transmitting a tail recognition signal to the air conditioning unit (3) of the final address. 3), (3), . . . have a tail signal output for outputting a tail signal to the remote control switch (4) connected to the air conditioning unit (3) when the tail recognition signal of the tail discrimination means (55) is received. means(
65), and the remote control switch (4) is provided with a tail display section (44) for receiving the tail signal from the tail signal output means (65) and displaying the final address. Operation control device for harmonization equipment.