JPS5822401A - Controller - Google Patents

Abstract

PURPOSE:To perform process control in desired operation mode without interrupting the control, by providing a priority processing circuit which decides on operation modes in accordance with predetermined operation modes. CONSTITUTION:A priority processing circuit 31 inputs respective mode specification signals from an automatic operation specification switch 32 for a local mode and a manual operation specification switch 33. Further, an absolute manual operation switch 37 is connected to the circuit 31 and when the switch 37 is turned on by an operator, a control signal from an output terminal 21 is controlled to control a process. When the switch 33 is turned on, a signal is sent to a microprocessor 11 to control the control signal from the terminal 21 in accordance with operation conditions of increase and decrease switches 26 and 27. Further, automatic operation in local mode is carried out with the switch 32. Then, control by the operation of those switches is performed by the microprocessor 11.

Description

[Detailed Description of the Invention] The ζO invention is for use in a controller that performs r1 process control using a 7"W sensor.

In the conventional ζomo adjustment needle, as shown in FIG. f ws 7 Nufield to measurement signal, switching from terminal 14 to setting signal, which is the control target, etc., and taking it into one input side of comparator 15. Convert it to an analog signal and supply it to the other input side of the analog signal tube comparison IBI 50, and output the output of the comparator 15 to the microphone 1.
-Se.

By importing IIK, terminal 13,140$ II constant signal and setting compensation 4#t are converted to digital signal 4#! Iku 1
- Input the sensor lIKm, then take in the measurement signal and the setting signal, calculate the deviation of these O, and apply so-called adjustment calculation tubes such as proportional, integral, and differential to the deviation.
The calculation result is output to the DA converter 16, the converted analog signal is sampled and held in the holding means 18 by the t switch 17, and the held output tube output Δt 7a 191 is outputted as a control signal from the output terminal 21. 'W Output to Senu field. The control signal from this O terminal 210 can be input to the microphone cIf terminal tllK* through the multi-channel terminal 12 and the p1 comparator 15 as necessary.

Various signals such as a measurement signal, a setting signal, a control signal, and a deviation signal can be output to the display 5122 and displayed. Various parameters necessary for the calculation are set by the parameter setting means 23, the microphone 4, and the processor 11.
Set in advance.

Furthermore, manual operating means 24 are provided! -f switch 2s
In the state specified as manual MII, manually operate the increase switch, 26, and the decrease switch 27Yt, and press the manual operation means 24.
The content held by the holding means 180 can be increased or decreased.

Microphone 4G4Sessor 11 is manually operated! 5Z Read whether it is switched to manual mode M or automatic side A.
, perform automatic control, or suspend that control. tta micro de ■ se,? 11 is the interface 7 and 28 with the transmission line.
For example, data can be exchanged with the upper level through the remote location, and manual operation can be performed through the remote location. 913) This adjustment needle operation can be switched between the local mode and the peak mode, and the i
You can switch between automatic peaking and manual peaking.

This conventional! If the controller using the Italo Processor tube is specified to be in automatic operation mode in the event that 1 is out of order or has a hole, the automatic control meeting will not take place. ,Moreover, there was a situation in which manual control was not performed.''*Yt:,There was a risk of confusion if the Kasumi Ichilayer mode specification and the remote mode specification conflicted. ■ - Cal mode specification guide - Tomo -
To provide an adjusting needle in which control is not confused by giving priority to the preferred one of the two specifications when a conflict occurs with any of the specifications.

According to this publication, a remote mode designation signal and a local designation signal are input to a priority processing circuit, and the operation mode is determined according to these input signals.For example, if a local manual operation designation signal is a remote It has priority over the mode specification signal. In addition, if necessary, the manual operation of the 11 Cal mode is controlled by the control signal through the fa set rt-. Once you are ready in the process, you can move on to the switched operation! Is the IC log 4 processor normal or abnormal? [The signal indicating this is also input to the priority processing circuit.] - Specify the operation mode according to the state of the Og. For example, provide an absolute manual operation means that does not work, and set it to the absolute manual operation mode when the gross and t is abnormal.

The first all shows an example of the adjustment needle according to 11IK,
The parts that correspond to those in Figure 1 are designated by the same reference numerals.

In this invention, a priority processing circuit 31 is provided, and each mode r designation signal is inputted to this priority processing circuit 111B from a local mode O automatic operation designation switch 32, a manual operation designation switch 33, and the like. These switches sz, s
The so specified state is the signal ll! Through each 34°3s! Ikuri ζ is input to Setuna 11. Oh! Ikrog Tanatsuna 11 Karasumine-Tomine-do designation signal, 9 trench Quinn #
78 Chair 28 allows manual operation from a remote location, and an automatic operation tube is carried out. A signal indicating -rt is input to priority processing 11wAjl131 through signal -36t-. .

Also, the four-cal mode OJP operation is! Iku 4 G■ This is the case where it is performed through Senna 11, and the increase switch 26 and decrease switch 27 are Micro F Shiryu Tuna IIK.
In addition, an absolute manual operation designation switch 37 is provided, and this designation signal has priority 1IJIIIv.
It is input to IU path 31. A signal indicating the operating mode selected by the priority processing circuit 31 is supplied to the microphone VXF4, S11 through the signal 1138Yt. Priority processing circuit 3
A predetermined signal is generated from the output 4139 of No. 1, and the manual operation means 24 is enabled to operate only when the signal is large. The signal indicating whether the microphone sensor 11 is normal or abnormal is the signal l14.
1 to the priority processing circuit 31.

The priority processing circuit 31 is configured, for example, as shown in FIG. Resistor 4! S, 46°471--each through positive power terminal 48Km! Continued. Inverter 4
Each output side of 2.43 is connected to the second
As shown in the figure, the microgross is continued. a signal indicating absolute manual operation from the inverter 44;
From signal 1II41! A signal indicating whether the AF processor 11 is normal or abnormal is input to the NOR circuit 51, and NO
The output side of the R circuit 51 is a flip 7 which is similar to a NAND circuit.
0f52's dragon input bone Kll is continued. Y orgasm 7
'"-ky? In the case 4 which controls the control signal through 11, the signal indicating the output is outputted to the inverter 5stat 7.
The set output of Aritsubu 70 Jig 52 is No. 1 thanks to the reset method of Retsu Defrotsu FS2! 139 to the manual operating means 24 in FIG. ! The polarity of each output of $3 is reversed t'c AND manual g to a road 54
Reru @ AND I! 1jij) 54 company power is signal 8
Through the 38 tube, the i-i-kuro 7#receiver is sent manually to the su11.

When the absolute manual operation designation switch 37 is turned on, the inverter 440 output is at high level 11# and χp, which is N.
On 1m road 51t - 7 rights flow through.

7"51, and when this is set and the signal line 31 becomes high level ``1'', the manual connection means 2- in Fig. 2 becomes operational. Similarly to 4, the signal line 41 is at a high level “1”K, 7 rip 7 * y 7” 52 is set and the signal ll1
39-fi goes to high level. Therefore, I went to the scene 1
The operator turns on the absolute manual operation designation switch 37.
Or, after the microphone 1-processor 11 becomes abnormal, the microprocessor 11 tube will not be connected, and the output terminal 210 control signal tube in the WC2 diagram will be controlled, and the processor 11 will be manually controlled. ! In this case signal No. 1 l1
Since the high level "1" of signal 39 is inverted and inputted to the AND circuit 54, the microprocessor 11 does not control fa sensor 1 since the signal 1R38 is at the temporary level.

When the manual operation designation switch 33 is turned on, this causes the microphone 4 gross, 1
1 is notified and #! In Figure 2, the operating states of the increase and decrease switches 26 and 27 are the same as those of the Micro Zorocessor II.
K is scattered, and in response to this my 1 black f seryu y t
The output terminal 21C>control 1 signal is controlled through l 1 t-. This is the microprocessor 1! is the signal as
When the automatic operation designation switch 32 is turned on, when the automatic operation designation switch 32 is turned on, the ST high level is set to 7 RITSUDE and 4TSDE 52 is set.
This is through signal 1134! Ita 1-Sessa 11
Notified, Kokoto and other OItts 3! The microphones 117 and 11 perform automatic operation based on the S, 380 status, etc.

828 through the interface 28 from a remote location, for example, the central control center, to the microphone 11 indicating a remote manual mode command.
CM feltt"l 1-1 confirmed that the signal 9330 status was high and low, and that it was absolute manual operation, and that it was set to manual operation. Output terminal 21O control signal tube control 1 according to manual operation
As you can understand from the oWRIR, according to the priority order shown in Figure 3, the output has priority over absolute manual operation (including the decessor 110) 1 first, then ■
- Priority is given in the order of manual operation at the site and then manual operation.

Therefore, according to this publication, even if multiple operation mode specifications are given at the same time, the operation mode is determined according to the predetermined priority order, and there is no risk of tIIIL, and at that time, the desired operation mode and i operation mode are determined. be done.

Furthermore, as in the previous embodiment, local manual operations can also be performed using a microphone!
When performing mutual switching between various operation modes through the 2fW processor 11, nine consecutive controls are performed, and there is no period during which the control is interrupted.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an example of a control processing circuit using a conventional f-rosena and nine controllers. 1... Microprocessor, 12... Multiplexer, 3... Measurement signal input terminal, 14... Mixed signal input terminal, 15-... Comparator, 16... 0 person converter, 19 ... Output buffer, 21-- Control signal output terminal, 22... Display, 23... d-meter setting means, 24... Manual operation means, 26.27... Manual operation switch, 28 ...Communication n* interface, chair, 31
・-Priority designation switch. Patent applicant: Hokushin Electric Manufacturing Co., Ltd. Military expenses: Taku

Claims (1)

[Claims] (1) A grottower that inputs at least 4III constant signals and setting signals, performs a control operation tube, and outputs a control output tube;
From the peak to the O-lock designation signal or the peak at the four-cal.
R designation 414I/ is supplied, and the operating peak mode is determined based on a predetermined priority order.