JPS6365504A - Output unit for programmable controller - Google Patents

Abstract

PURPOSE:To select and listen only a required message out of voice-outputted messages, by terminating the voice output of a current message compulsorily when it is not necessary to listen the message any more. CONSTITUTION:When a various kinds of messages are prepared in advance, and a voice output command is fetched from the system bus of a programmable controller 100, the message designated by the voice output command is read out, and the message is converted to a voice, then outputted. And when a voice interruption command is fetched from the system bus of the programmable controller 100, then, at least a first message, that is the voice output of the message at a time when the voice interruption command is fetched, out of the messages to which the voice output command is to be designated in order, including the message in voice-outputting, is terminated compulsorily.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a programmable controller controller.

(Summary of the Invention) In the output unit according to the present invention, various messages are prepared in advance, and when a voice output command is received from the system bus of the programmable controller, the message specified by the voice output command is read out. The message is then converted into audio and output.

Then, when a voice interruption command is fetched from the system bus of the programmable controller, at least the first message, that is, the voice interruption command, among the messages in which voice output commands are sequentially specified, including the message that is currently being output The audio output of the message when it is captured is forcibly terminated.

(Prior art and its problems) When controlling various industrial machines using a programmable controller, the programmable controller is
In many cases, it is preferable to provide the necessary information to the controller user by voice.

Conventionally, in such cases, an audio signal generator, an endless tape device, etc. constructed using a speech synthesis LSI, etc., is prepared, and a binary signal is given from the output unit of the programmable controller to that type of device. As a result, machine information was given to the user of the programmable controller by voice.

However, in the past, a device for obtaining audio signals was prepared separately from the output unit of the programmable controller, resulting in a problem that the system became complicated and expensive.

(Object of the invention) The present invention has been made in view of the above-mentioned conventional problems.
The purpose is to provide a programmable controller output from which audio signals can be obtained directly without the need for other equipment.

(Structure and Effects of the Invention) In order to achieve the above object, the present invention comprises: a message storage means for storing various messages; an audio output command importing means for receiving an audio output command from a system bus of a programmable controller; Message reading means for reading out the message specified by the output command from the message storage means, voice output means for converting the read message into voice and outputting it, and voice for receiving the voice interruption command from the system bus of the programmable controller. The present invention is characterized by comprising: an interruption command importing means; and an audio interruption means for forcibly terminating the audio output of a message when at least the audio interruption command is taken in, among the messages sequentially specified by the audio output command. shall be.

According to the present invention, the audio signal can be directly obtained from the output unit without preparing a separate device, so that the configuration of the programmable controller can be made simple and inexpensive.

Particularly, according to the present invention, when there is no need to listen to a message any more, such as when a message with the same content is repeated, the audio output of at least the current message is forcibly terminated. It becomes possible to select and listen to only the necessary messages among the messages sent to the user.

(Description of Embodiments) Hereinafter, preferred embodiments of the apparatus according to the present invention will be described based on the drawings.

The programmable controller 100 whose appearance is shown in FIG. 1 includes a power supply unit 102 and a CPtJ unit 104.
, a plurality of I10 units 106, and audio output units 1-108.

The units 102, 104, 106, and 108 are shaped like a book case, and are connected to each other by plugs provided on their backs being inserted into sockets on the rack 110 side.

Further, the audio signal obtained by the audio output unit 108 is supplied to an amplifier 112, and a speaker 114 is driven by the amplifier 112.

FIG. 2 shows the external appearance of the sound output unit 108, and FIG. 3 shows its circuit configuration.

In FIG. 2, the front panel of the housing 116 has 32
There are provided an LED display 118, a jack 120 from which an audio signal is taken out, an 8-bit DTP switch 122, and a front cover 24. A plug 126 of the amplifier 112 shown in FIG. 1 is inserted into the jack 120.

Here, N124 is removed and a voice memory card 128 is inserted into the voice output unit 108, and the voice memory card 128 is provided with a ROM 130 shown in FIG. 3 in which 32 types of message data are written. It is being

This ROM 130 has 8 bits per word, and as shown in FIG. 4, the ROM 130 includes an address storage area 130a in which a message number, a start address, and a stop address are respectively stored.
A voice data storage area 130b in which message data is stored separately for message numbers is provided.

The messages for No. 4, N015, and No. 016 are all silent, and their lengths are 1 second, 0.5 seconds, and 5 seconds, respectively, and the message for No. It is said to belong to

Also, this ROM 130 has jumper wire 1 in FIG.
An identification bit whose state can be set by disconnecting 32 is provided to determine whether the voice output command given to the voice output crab unit 108 is in the code format shown in FIG.
Alternatively, the bit format shown in FIG. 6 is identified by the audio output unit 108 based on the contents of the identification bit.

Among these voice output commands, the code format shown in FIG. 5 has a length of 32 bits, and is obtained by executing a user program using the MOV command.

and O bit to 7 bits, 24 bits to 31 bits,
Data corresponding to the first message to be uttered, the next message to be uttered, and the last message to be uttered are each inserted in the 1-byte portion of 16 bits to 23 bits as a BCD code, and the 14th bit is When the (message recognition bit) changes state to 0 or 61, the start of audio output is commanded.

When the 15th bit (priority function selection bit) becomes 1, priority utterance of these series of messages is commanded. The number and number of repetitions are each indicated.

On the other hand, the bit format audio output command shown in FIG.
Although it is assumed to be a bit length, this instruction is obtained by executing a user program using the 0U instruction.

And those 32 bits are written in ROM130.
Each bit corresponds to two types of messages, and when any bit changes from 0 to 1, audio output of the corresponding message is commanded.

Therefore, when a series of messages is to be audio output, a plurality of bit format audio output commands are sequentially given to the audio output unit 108.

The above audio output commands are input into the audio output unit 108 from the system bus SB shown in FIG. 3 (provided in the rack 110 in FIG. It is obtained by executing the user program in the CPU unit 104 shown in FIG.

In FIG. 7, the CPtJ unit 104 is connected to the system bus SB by inserting the plug 140 into the socket 138 provided on the system bus SB of the rack 110. Programming tools that have not been connected are connected.

A user program created by the programming tool is written in a FROM 144 of 8 bits per word, and the user program is in a high-level programmable controller language. In this embodiment, the program is in a format for inputting a ladder diagram.

This user program is stored in ROM14 with 8 bits per word.
6 (in this example, the system program written in EN
MPtJ1 with 8-bit configuration according to D refresh method)
48, and at the time of execution, 19-
An 8-bit RAM 150 is used for temporary storage of calculated values.

In addition, the RAM 152 uses an 8-bit word, and its address space includes an input/output canister that allows input/output to be assigned in 8-bit units, an auxiliary relay area, a count information area for the counter element, and a keep relay area. area, which is assigned to the time information area of the timer element.

FIG. 8 shows a system program written in the ROM 146, and when the system program is started by turning on the power, initial settings are made for the RAM 150, 152, etc. (step 200).

Next, various system service processes are performed (step 202>), which include service processes such as monitoring and failure diagnosis, as well as program writing to the PROM 144 if a programming tool is connected.

Next, input update processing is performed (step 204), in which the states of the terminals assigned to inputs in the I10 unit 106 are sequentially fetched in 8-bit units, and transferred to the corresponding addresses in the RAM 152. processing is performed.

It is roughly determined whether the operation mode of the programmable controller 100 is the RUN mode (
Step 206>, the above operations are repeated when the RUN mode is not selected.

After that, in the service process (step 202), when a key operation to select the RUN mode is performed and the selection is confirmed (affirmative determination in step 206), the user command is read from the PROM 144 according to the contents of the program counter, and the ladder Circuit calculations and the like are performed according to the contact connection relationships shown in the figure, and the corresponding output canisters in the RAM 152 are rewritten according to the calculation results (step 208).

In this embodiment, the programmable controller 8-word user program is indirectly executed via an interpreter program prepared in advance in the ROM 146.

Then, when the instruction execution is repeated and the END instruction is read out, the instruction execution process is ended and the output update process is performed (step 210>).

In this output update process, the output terminal contents of the RAM 152, which have been rewritten as a result of instruction execution, are transferred to the eight terminals assigned as outputs of the I10 unit 106.
Thereafter, system service processing (step 202>, input update processing (step 204), command execution processing (step 208), and output update processing (step 210) are repeatedly performed on condition that the RUN mode is continuously selected. .

At that time, for example, if a user program based on the MOV instruction shown in the ladder diagram of FIG. , input '100
It is confirmed whether or not 0 is turned on.

When input 1000 is turned on, data 0001
．． 0103.0204.0005.0OO2 is sequentially transferred to the Qch (indicated by data OO) of the RAM 152 shown in FIG. 10, and corresponds to the 14th bit of the code format audio output command shown in FIG. 5. The bit is then set to 1.

Furthermore, these data 0001.0103.0204.0
The lower 2 bits of data 01.03 of 005.0002
．． No. 2, No. 4 in Figure 4 by 04.05.02
, No. 5, No. 36, and No. 3 are commanded to output the message audio, respectively, and the third digit bit data O11,
2, 0, 0, the number of audio outputs 1.2.3.1.
1 is indicated respectively.

Note that in the case of a user program that uses the OUT command, when a predetermined contact is turned ON, for example, in FIG. Write processing is performed to the corresponding area of the RAM 152 in which the 2nd bit becomes 1 once and the 2nd bit becomes 1, respectively.

However, when the OUT command of the OP code is executed, the area is always rewritten to the contents according to the calculation result of the corresponding output, but in the case of the MOV code, the contents of the channel are rewritten only when the calculation result is ON. If it is OFF, the rewriting will not be performed.

The audio output commands shown in FIG. 5 or 6 obtained in the above manner are divided into 4 times in 8-bit units and sent to the CPU in a time-sharing manner.
The data is sent from the unit 104 onto the system bus SB, and converted into parallel 32-bit data by the latch section 154 provided in the audio output unit 108, as shown in FIG.

The latch section 154 has four 8-bit latch circuits connected in parallel, each of which can be selectively accessed via an address decoder, and the parallel 32-bit data ( The audio output command) is output in 8-bit units by the latch unit 156.
The data is sent out onto the data bus DB within 8.

Note that this latch section 156 has four 8-bit latch circuits arranged in parallel, and each gate output is commonly connected in units of 8 bits, so that each latch circuit is triggered simultaneously and each gate is connected to the address decoder output. It is possible to send data in units of 8 bits onto the data bus DB by selectively operating the data bus DB.

When the voice output command is taken in in this way, the MPU 158 of the voice output unit 108 processes the data from the latch unit 156 according to the system program written in advance in the ROM 160, and in this process, the ROM
A series of messages are read out from 130, and the messages are converted into audio signals by a speech synthesis section 162.

In this embodiment, the ADPCM method is adopted to generate the audio signal, and the audio signal obtained by the audio synthesis section 162 is supplied to the output transformer 166 and the monitor amplifier 168 via the low-pass filter 164, and their outputs are is selected by the changeover switch 170 and taken out from the jack 120.

Further, as shown in FIG. 1, since the amplifier 112 is connected to the audio output unit 108, its changeover switch 170 is switched to the output transformer 166 side.

As shown in FIG. 12, the working RAM 172 is provided with first and second stack areas.
Each LED display 118 is connected to the data bus DB via a latch section 174.

This latch section 174 has substantially the same configuration as the latch section 154, and the outputs of the respective DIP switches 122 are taken in through the gate section 176.

Here, among the message data stored in the audio data ROM 130, the message data No. 1, No. 32 instructs to interrupt the audio output and cancel the interruption, and for this reason, the selection thereof is instructed. The voice output command is treated as a voice interruption command and a command to cancel the interruption.

Note that the system program ROM 160 stores all output sentences formed by a series of messages.

When the power is turned on to the above sound output unit 108,
General initialization processing (not shown) is performed, and then the jumper wire determines whether the audio output command taken in from the system bus SB is in the code format shown in FIG. 5 or in the bit format shown in FIG. The determination is made using the identification bit set in step 132 (step 212 in FIG. 13).

At this time, if it is determined that the voice output command is in the code format shown in FIG. 5, initialization processing is performed for the first and second stack areas of the working RAM 172 (step 214).

When the 14th bit of the audio output command changes from 0 to 1, an interrupt signal (interrupt 2) is given to the MPU 158, thereby starting the process shown in FIG.

In this process, the audio output command from the latch section 154 is first transferred to the latch section 156 (step 216).

Next, it is determined by referring to the audio data ROM 130 whether the audio output command instructs audio output interruption (step 218), and when it is determined that no audio output interruption instruction has been input ( Step 218
(negative determination), it is determined with reference to the audio data ROM 130 whether or not the latched audio output command instructs cancellation of audio output interruption (step 220).
.

If the audio output command at that time does not instruct either interruption of audio output or cancellation of the interruption (negative determination in step 220), it is determined whether or not audio output is being interrupted (step 222). ), if it is not being interrupted (negative determination in step 222), the latched voice output command is stored in the working RAM 172 (step 22
4).

Further, when the audio output command is read out from the working RAM 172, it is determined whether or not audio is being output (step 226), and if it is determined that audio is not being output, step 228
If the judgment is negative in step 23, the audio output command read out from the working RAM 172 is stored in the second stack area functioning as a FIFO stack (step 23).
0).

On the other hand, if it is confirmed in the process of FIG. 13 that the audio is not being output (negative determination in step 232), it is confirmed that the audio output command is stored in the second stack area. (negative determination in step 234, affirmative determination in step 236), the number of the message to be outputted first as indicated by the BCD code from the 0th bit to the 7th bit in FIG. 5 is read. (
Step 238).

Furthermore, the start corresponding to that message number.

The stop address is read (step 240), and the address of the ROM 130 is set based on the start address (step 242).

And the LED display 1 corresponding to that message No.
18 is lit, step 244), the speech synthesis section 1
A start command is output to 62, and a flag indicating that audio is being output is set (step 246).
.

According to the setting of the start address, 1 byte of data stored at the corresponding address is read out from the audio data ROM 130 side to the voice synthesis section 162.
At 62, voice synthesis processing is performed in response to a start command.

Through the voice synthesis process, voice signals corresponding to the message No. are synthesized for a minute amount of time, and when the voice signal synthesis is completed, an interrupt signal (interrupt 1) is sent back to the MPU 158.

This interrupt signal starts the process shown in FIG. 15, and it is determined whether the current set address has reached the stop address (negative determination in step 247 → step 248).
In step 250, it is determined that the voice output command is in the code format. At this time, it is determined that the stop address has not been reached.

This increments the current configuration address (
Step 252>, the address of the ROM 130 is set using the new address (Step 254).

By setting the address, an audio signal for a minute period corresponding to the message number is synthesized, and an interrupt signal (interrupt 1) is sent back to the MPU 158, thereby repeating the above operation.

Thereafter, when the current setting address reaches the stop address (affirmative determination at step 250), the speech synthesis unit 1
A stop command is sent to 62 (step 256
>, the LED display 118 corresponding to the sounding message NO., which had been lit up until then, is turned off (step 2).
58).

Furthermore, when it is confirmed that the message output as voice is the first message and the number of message connections is not 1 (affirmative determination in step 260, negative determination in step 262), the second message is The start address and stop address (see FIG. 5) are read (step 264).

Then, after the star [-address of the second message is set, step 266> and the LED display 118 corresponding to the message number is lit (step 268), a start command is sent to the audio output section 162. (Step 270).

As a result, the audio output of the second message is performed in the same manner as the first message, and when the end of the audio output is confirmed (affirmative determination at step 250), the third message is finally output in the same manner. Audio is output (negative determination in step 260, affirmative determination in step 272, negative determination in step 274, steps 276, step 278, step 268, step 270).

Furthermore, when the number of message concatenations is 1 or 2 (affirmative determination in steps 262 and 274 in FIG. 15), the messages are repeated the number of times indicated by the 8th to 11th bits in FIG. It is determined whether or not the message has been sent (step 280), and the messages are repeatedly outputted as a voice for the determined number of times (step 282).

One or more new audio output commands are taken in during rough audio output (affirmative determination in step 228 in Figure 14, after the start command is sent until the stop command is sent) If so, a voice output command is bushed in the second stack area (step 284), and each series of messages is voice output in the order in which the voice output commands arrive.

Then, when it is confirmed from the 15th bit in FIG. 5 that the audio output command newly taken in during audio output should be given priority (affirmative determination at step 286),
It is determined whether or not the audio output command that is being outputted is also one that should be prioritized (step 288>, and if the audio output command that is currently being outputted is not one that should be prioritized, the audio output is interrupted and a new one is issued. Audio output based on the audio output command is started, and after that audio output, audio output based on the original audio output command that was interrupted is resumed (step 2).
90,292.294.296).

Furthermore, if the voice output command that is currently being output is one that should be prioritized, the voice output is performed in the order of arrival (step 29).
6).

Further, when an audio output command that should be prioritized is captured when audio output is not being performed (affirmative determination at step 298), that command is stored in the first stack area on the priority side (step 300), and the audio output command is stored in the first stack area on the priority side (step 300). Output is performed (step 302 in FIG. 13).

Note that when audio output is not being performed (see Figure 13)
(negative determination in steps 232, 234, 236), D
When the test switch corresponding to the second bit of the IR switch 122 is operated (affirmative determination in step 304)
, the message number specified by the other bit operation of the DIP switch 122.

is read (step 306), and the message is output as audio.

The above processing is performed according to a code format audio output command, but in the case of a bit format audio output command, initialization processing is also performed in advance in the processing shown in FIG. 13 (
Step 307).

When any bit becomes 1, the bit change is confirmed after the voice output command is latched (step 30B) (step 310), and the message No. corresponding to that bit is stored in the first stack area of the working RAM 172. (negative determinations in steps 312, 314, and 316, step 318).

In the next cycle, it is confirmed that message data is stored in the stack (affirmative determination at step 314), and the message corresponding to the command is output as voice (steps 322, 324, 326, 328,
FIG. 15 Steps 330.332.334.336.
338, 340) Furthermore, if the number of repetitions is specified by operating the third to sixth bit switches of the IMF switch 122, each message is repeatedly output as voice for the specified number of times (step 340).
negative determination at step 342.344.346).

A new audio output command is latched during Zaraani audio output,
In addition, if a change in state is recognized in a bit different from the previous one, and the priority function selection switch (corresponding to a predetermined bit of the DIP switch 122) is not operated (affirmative determination in step 312, step 348). (affirmative determination in step 350), the data of the new message numbers are sequentially bushed into the stack area (step 352), and they are sequentially output as audio in the order in which the audio output commands arrive.

Then, when the priority function selection switch is operated, the message with the smaller message number is prioritized and output as voice (affirmative determination in step 350, step 354.
356.358.352).

Also, when messages are stored in the stack and are not being output as audio, and the priority function is selected, the message with the smallest number 1 will be output with priority, and if it is not selected, the message will be output in the order of arrival. (Steps 360, 362, 364).

Furthermore, when the operation of the test switch set as the second bit of the DIR switch 122 is confirmed (affirmative determination in step 314), the message specified by the 5-bit binary data of the third to seventh bits of the DIP switch 122 is No. is read (step 366), and the message of that message No. is output as voice.

When the test switch is operated during voice output, the generation of the message interruption command is confirmed in the process shown in FIG. 15 (affirmative determination in step 247), and a stop command is immediately issued to the voice synthesis section 162. As well as (
Step 368), and the LED is turned off (step 370).

As a result, it becomes possible to forcibly interrupt the audio output of a message at any time.

Since the above processing is performed by the audio crab unit 108, when the audio output command shown in FIG. 9 is given, the first
As shown in Figure 6, first, No.

Message No. 2 is audio output once (A in the same figure), then message No. 4 is audio output twice (C in the same figure),
Furthermore, message No. 5 is audio output three times (D in the same figure), then message No. 6 is audio output once (E in the same diagram), and finally message No. 013 is audio output once (E in the same figure). Figure B).

As mentioned above, the messages NO, 2, No, 3 are all sound, and the messages NO, 4, NO,
Since the messages of 5, No., and 6 are supposed to be silent for 1 second, 0.5 seconds, and 5 seconds, the length between the sound messages of No. 2, No., and 3 was set to be 8.5 seconds. An interval is inserted (F in the same figure).

Next, processing related to interrupting and canceling the interrupt of audio output will be sequentially explained for when the audio output command is in code format and when the audio output command is in bit format.

Audio output is interrupted when a sentence formed by a series of messages is repeatedly output as audio, and the system administrator checks the content of the sentence and determines that repeated listening is unnecessary. When voice output is commanded according to a code-type voice output command, repeated voice output sentences are stored in the system program ROM 16 during the processing shown in FIG.
The content of 0 is used to confirm (step 372).

In the process shown in FIG. 14, when the input of the audio output command instructing the interruption of audio output is confirmed (affirmative determination in step 218), the stop command to the audio synthesizer 162 is not outputted (step 374), and the current audio The LED display 118 corresponding to the message number being output is turned off (
step 376).

Then, the voice output command from which the part corresponding to the sentence in the voice output that is no longer necessary to be heard is removed is stored in the working RAM 172.
(step 378), the stack area is emptied (step 380).

Therefore, when a voice output command specifying message No. 1 is input, the voice output of the current sentence that does not need to be heard is forcibly terminated.

When a new audio output command is input after that, if it is confirmed that audio output is being interrupted (affirmative determination in step 222), the content forming the unnecessary sentence at the time of audio output interruption is Removed from new voice output commands (
Step 282), the voice output command is also assigned to the working RA.
M172 (step 284).

Therefore, if a new audio output command different from the one at the time of interruption is input while audio output is interrupted, the audio output commands are sequentially stored in the working RAM 172.

Thereafter, if a voice output command to select the last one of the messages stored in the voice data ROM 130 is input to cancel the voice output interruption (affirmative determination at step 220), the voice output The oldest command that has not been output is the working RAM
172 (step 226>), and the sentence specified by the audio output command is output as audio in the manner described above.

In the process shown in FIG. 13, it is determined whether the remaining voice output commands exist in the working RAM 172 (step 390), and it is confirmed that the remaining voice output commands exist in the working RAM 172. If so (affirmative determination in step 390), the oldest command for which no audio output has been performed is read out (step 392), and its audio output is stored in the stack area (step 394).

Note that, as described above, the storage is performed depending on the presence or absence of the priority function (see FIG. 14).

On the other hand, when a bit-type voice output command is input, the current voice output sentence is checked (step 396) every time a start command is output to the voice synthesis section 162 (step 328).

When the input of a voice output command instructing to interrupt voice output is confirmed (affirmative determination at step 398), a stop command is output to the voice synthesis unit 162, and an LED display corresponding to the message number currently being output is displayed. The device 118 is turned off (steps 400, 402>), and the stack is emptied (step 404).

After audio output is interrupted in this way (step 4
06), when a new voice output command is input, it is determined whether the message selected by the voice output command forms the output sentence when voice output is interrupted (step 408). .

If the message forms an output sentence when audio output is interrupted (affirmative determination in step 408), the new audio output command is ignored; if the message does not form an output sentence when audio output is interrupted (step 408), the new audio output command is ignored. 408), a new voice output command is sent to the working RAM 172.
(step 410).

After that, when the input of a voice output command instructing to cancel the voice output interruption is confirmed (affirmative determination in step 412),
After the voice output command is stored in the working RAM 172 (step 414), the oldest command for which no voice output has been performed is read out from the working RAM 172 (step 416), and the voice output is performed.

Roughly speaking, during the period in which no new voice output command is input (negative determination in step 310), the working R
It is constantly judged whether or not there are any remaining voice output commands in the AM 172 (step 418), and the remaining voice output commands are sequentially read out from the working RAM 172 in the order of oldest to last (step 416), and voice output is performed in order. It will be done.

As explained above, according to this embodiment, the audio signal is directly transmitted by the output unit 108 without preparing any other device, so the configuration of the programmable controller 100 can be made simple and inexpensive. becomes.

Furthermore, according to this embodiment, since a silent message is inserted between voiced messages, it is possible to easily form a silent section of a certain length between messages.

Since the data of the silent message forming the silent part can take the same command form as the data of other voiced messages on the user program, it can be confirmed immediately from the monitored user program.

Therefore, it becomes possible to easily create, check, and change user programs.

Furthermore, according to this embodiment, three types of silent messages with different lengths are prepared, and intervals are formed between voiced messages by arbitrary combinations of these, so the intervals can be freely and precisely set. It becomes possible.

Also, as can be understood from Figure 9, the number of times each silent message is repeated can be set up to 10 times, so an interval of up to 65 seconds (=0.5X10+1X10+5X10) can be created in 0.5 second units between voice messages. becomes possible.

In particular, according to this embodiment, the audio output unit 108
Since the voice output is forcibly terminated by the command given to it, it becomes possible to arbitrarily stop listening to messages whose contents have already been confirmed, which is extremely suitable for the use of the device.

Furthermore, messages to be output as audio are accumulated while audio output is interrupted, and are output as audio one after another when the interruption is canceled. They do not become invalid, and therefore it is possible to obtain the necessary mechanical information by listening to them.

In this embodiment, while the audio output is interrupted, sentences that are different from the sentences that are disabled when the audio output is interrupted are simply accumulated, but it is also preferable to configure the device to sequentially output these sentences during the interruption of the audio output. It is also preferable that the audio output is interrupted only during the period in which the command is continuously given.

[Brief explanation of the drawing]

Figure 1 is an external view of the programmable controller, Figure 2
The figure is an external view of the voice output crab unit, Figure 3 is an explanatory diagram of the configuration of the voice output crab unit, Figure 4 is an illustration of the storage contents of the voice data ROM, Figures 5 and 6 are diagrams explaining the format of the voice output command, Fig. 7 is an explanatory diagram of the configuration of the CPLJ unit, Fig. 8 is an explanatory diagram of the system program of the CPU unit, Fig. 9 is a ladder diagram for explaining the user program, and Figs. 10 and 11 are data storage contents of the input/output status RAM. An explanatory diagram of
Figure 12 is an explanatory diagram of the working RAM stack area.
13, 14, and 15 are flowcharts for explaining the system program of the voice output crab unit, and FIG. 16 is an explanatory diagram of the voice output operation of the voice output crab unit. 100...Programmable controller 104...
・CPU unit 108...Audio output unit 128...Audio memory card 130...Audio data ROM 132...Jumper wire 158...MPL 160...System program R,0M162...
Speech synthesis section 172...Working RAM 174...Latch section 3B...System bus Figure 4 Figure 5 Figure 6 No to Me/l-Zo Nα1, 16 Metsut-Zo Noj7-No , 32 Fig. 9 Fig. 10 Fig. 1j Fig. h -----1--tHb6 Fig. 12 (17-Heng RAM)

Claims (1)

[Claims] (1) A message storage means for storing various messages, an audio output command importing means for receiving an audio output command from the system bus of the programmable controller, and a message for reading a message specified by the audio output command from the message storage means. reading means, audio output means for converting the read message into audio and outputting it, audio interruption command importing means for receiving an audio interruption command from the system bus of the programmable controller, and messages sequentially specified by the audio output command. An output unit of a programmable controller, comprising: a voice interrupting means for forcibly ending the voice output of a message when at least a voice interrupt command is taken.