JPH03131722A - Data logger device - Google Patents

Abstract

PURPOSE:To perform operation control over various equipments by providing a memory card storing set values for judging the maximum, minimum, and mean values of measurement data and a sequence program for outputting a control signal. CONSTITUTION:When the measurement data is inputted to a control part 1, the measurement data is monitored and sampled according to a frequency and conditions which are set in advance. Then the measurement data is compared with the maximum, minimum, and mean values, etc., and when it is judged that the measurement data is not within the range of the set values, the current value and time are stored in the memory card 20. Further, when the sequence program is inputted from a data logger device or other external equipments, the sequence program can be outputted as the control signal, to the operation control over the data logger device and various object equipments can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a data logger device, and in particular, it is equipped with a memory card storing measurement data setting values, sequence programs, etc. and a data logger device capable of outputting control signals.

(Prior art) A data logger collects data by converting sensor measurement data, plant process values, etc. into digital data using an A/D converter or via an interface, and tabulates daily reports, monthly reports, etc. Its common functions are to monitor information and data. The monitor then compares the data with the set value and displays an alarm if there is an abnormality.
By transmitting data to other computers, it is also possible to analyze the cause of abnormalities.

(Problems to be Solved by the Invention) By the way, in this type of data logger device, a storage medium such as a magnetic card may be used when transmitting measurement data to a computer. In this case, RA the digital measurement data.
Although it is highly portable and convenient because it can be stored in the computer and manually transferred to the computer, the data logger itself is limited to sending and receiving data between the data logger and the computer, so the functions of the data logger itself are limited to logging and monitoring. , it was not possible to add advanced functions as an information processing device.

The present invention has been made in view of the above problems, and provides a data logger device that can store measurement data and sequence programs for process control in a memory card, and output various information and control signals as necessary. It is an object.

(Means for Solving the Problems) In order to achieve the above object, a data logger device according to the present invention includes a terminal portion connected to a connection terminal provided on a data logger or a connection terminal of an external device, and a storage area for storing various data. It includes a program for storing measured data based on preset sampling times and sampling conditions, and set values for determining the maximum value, minimum value, and average value of the measured data. The device is equipped with a memory card that stores a sequence program for outputting a control signal, monitors measurement data that changes over time, and sends the measurement data to the memory card so that the measurement data exceeds the set value. The device is equipped with a control section that stores the value and time at a given time in a predetermined storage area.

(Function) With the above configuration, when measurement data is input to the control unit,
This measurement data is monitored and sampled according to preset times and conditions. Then, the measured data is compared with the maximum value, minimum value, average value, etc., and if it is determined that it is outside the set value range, the value and time at that time are stored in the memory card.

Furthermore, when a sequence program is manually entered into a memory card from the data logger device or other external equipment, this sequence program can be output as a control signal, so that the data logger device and various devices to be controlled can be controlled.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 1 is an electrical block diagram showing a schematic configuration of the data logger device according to the present embodiment, Fig. 2 is an electrical block diagram of the memory card, and Fig. 3 is an electrical block diagram of the personal combinator. .

As shown in FIG. 1, this data logger WiW includes a CPU 3 ROM 4 .
RAM5. ^/D converter6. D converter 7. In addition to being equipped with a bank-up Wfi 8 and an interface 9,
It has an input/output terminal section 10 to which an IC card 20 is connected. In addition, a multiplexer 12 is used for the A/D conversion.
The multi-range 11 is connected to the interface 9, and the 10 circuit 13 is connected to the control unit 1.
is now configured. Outputs from various sensors and outputs from control equipment (not shown) are connected to the multi-range 11, while outputs from control equipment, outputs from measurement equipment, etc. are connected to the D-converter 7. Analog data can be input and output.

Furthermore, a telephone communication line is connected to the 110 circuit 13 to enable information exchange with other data logger devices and host computers. Furthermore, it is possible to connect a printer for printing, and also to connect a keyboard to input data.

Furthermore, by connecting the connection terminal section 21 of an IC card 20, which is a memory card, to the input/output terminal section 10, data can be exchanged. By connecting to the output terminal section, data can be exchanged with each other.

The CPU 3 is an arithmetic processing unit, and is a multi-range 1
1. Executes arithmetic processing based on the data from the I10 circuit 13 and the IC card 2o, stores the data, and uses the D/A converter? , I10 circuit 13 and input/output terminal unit 10, triggers, command signals, control signals, and various data are output.

Specifically, as a data logger, it performs normal logging and monitors measurement data, as well as quizzes and corrects data.

To explain in more detail, the logging conditions include data maximum value, minimum value, average value, time setting, date setting, etc., and the monitoring conditions include logging data, logging count, maximum value, minimum value, total value, etc. number, etc. In addition,
As for the output setting of the logging status, it is possible to set the on/off control of the output relay when the maximum value is exceeded, when the minimum value is advanced forward, and for each average value limit. When an abnormal value occurs, a signal is output to generate an alarm.

It also outputs various commands of the time program through calculation processing and provides measurement start and end conditions, etc. For example, when the set time or measured value becomes above or below the set minimum value, an external trigger is given. Output each command at a point in time.

This makes it possible to vary the environmental conditions around the measurement point, the conditions of the measuring instrument, the equipment to be measured, etc. in response to the measurement data, and to monitor and analyze the measurement data in response to the changes.

Upon receiving the measurement data, it is also possible to read a sequence program from the ROM 4, which will be described later, and provide control signals to the system to be controlled to control various devices and perform feedback control.

The ROM 4 is a read-only memory and stores an operation program for the CPU 3 as well as a sequence program for controlling the operation of relays and the like of the equipment. It also stores time programs, allowing timer settings, relay on/off control, printing to a printer, and time control.

The R8M5 is a read/write memory that records digitally converted measurement data and detection data, and also stores data from the IC card 20 and the host computer.

The multi-range 11 switches ranges based on command signals from the CPU 3 in accordance with analog signal levels such as measurement data from sensors and output data from control equipment, and supplies analog data to the multiplexer 12. In this example, it is possible to input 8 channels to the multi-range 11, and physical quantities such as temperature (high and low temperature regions), temperature, pressure, stress (strain), and light intensity can be input as the range to be measured by various sensors. It becomes. In addition, the multiplexer 12 responds to a command signal from the CPU 3 to select an arbitrary channel from among the analog data manually input to the multi-range 11! Translation, A
/D converter 6. Said 170
The circuit 13 connects to the telephone communication line of the R3232C via a modem (not shown), so that it can be connected to a host computer or a remote data logger and controller. It is now possible to transmit data to 111 devices and input various data.

The input/output terminal section 10 is provided in card insertion slots 50a, 50a of the data logger device 50, 50 shown in FIG.
0 is inserted, it is connected to the connection terminal section 21 of the IC card 20, and data from the control section 1 can be outputted, and the data stored in the IC card 20 can also be input manually. .

The control unit l of the data logger device applies triggers and signal voltages to the measurement target system for changing conditions, measures external conditions and environmental changes, and reactions, and monitors and analyzes the measured data. This allows various tests to be performed efficiently and unattended. At this time, when the measurement data is difficult to analyze due to its advanced level, the measurement data is sent to the personal computer 30 to enable analysis and graphing.

In addition, while outputting analog data to the controlled system, it is possible to perform arithmetic processing on the input analog amount based on a preset conversion formula and output analog data for correction and control again.

In particular, it is possible to input an analog quantity into a device to be tested and automatically monitor its response, or to use it as a program voltage generator for temperature, pressure, etc.

The IC card 20 is shown in FIG. 2, and the card body is made of plastic and is about the size of a business card, like a conventional magnetic card, and has a thickness of about 1 to 11 mm.

Reference numeral 21 denotes a connection terminal section, which is exposed outside the card body and can be connected to an input/output terminal section 10 of the data logger device and an input/output terminal section of a personal computer 30, which will be described later.

22 is a read/write control section, and the connection terminal section 2
1 and controls the human output of various data.

23 is a ROM for storing control programs, 25 is a RAM for storing data, and 24 is a backup battery.

Note that the ROM 23 stores a sequence program in addition to the program of the rc card 20. Specifically, measurement conditions include measurement channel, measurement range, measurement start and end times, and data sampling time, and relay operation conditions include maximum value, minimum value limit, average value limit, data sampling frequency, and This is the number of accumulated data, etc.

This allows the Ic card 20 to be connected to the data logger device.
When V, the ROM 23 is replaced with the ROM 4 of the control unit l.
The control unit 1 can be operated and set according to the program.

It is also possible to provide set values for analyzing measurement data and comparing with reference values. Based on the sequence program, a control signal can be output to a control device connected to the data logger to control the operation.

Further, data measured based on the measurement conditions as described above, data detected during sequence control by a sequence program, etc. can also be stored in the RAM 25.

Note that the measurement conditions, programs, etc. stored in the ROM 23 of the IC card 20 are written to the ROM 23 by connecting the IC card 20 to the personal computer 30 and performing predetermined operations. It is possible to rewrite it as In addition, various cards can be prepared according to the purpose, such as temperature cards, pressure cards, flow rate cards, etc., and editing cards, data copy cards, data search cards, etc. can also be created.

Therefore, by preparing various types of IC cards 20, the user can operate the data logger device and various devices without requiring complicated program operations.

The personal computer 30 is shown in FIGS. 3 and 4.
As shown in the figure, it is a conventional popular type, and in this example, an IC
A card insertion slot 30a and an input/output terminal section 31 for connection to the connection terminal section 21 of the card 20 are provided.

32 is a control unit connected to the input/output terminal unit 31, which includes a built-in CPU, ROM, and RAM, and a keyboard 33.
．． CRTa2. A printer 35 is provided.

As a result, when the IC card 20 is connected, the RA
The data stored in the M25 can be read and displayed on the CRT, and the data can also be analyzed and tabulated or graphed according to a predetermined program.

In addition, this analysis data is sent to the IC card 20 and RA
By storing the data in M25 and supplying it to the data logger, it can be used as a measurement condition setting value or a control signal.

Next, the operation of the data logger device configured as described above when using an IC card and a personal computer will be described.

First, when analyzing measurement data via the IC card 20, insert the IC card 20 into the card insertion slot 30a of the personal computer 30 shown in FIG. Connect.

And the keyboard 33 of the personal combinator 30
, and input a program for operating the data logger device 50. Next, the measurement data is transferred to the IC
The number of sampling times and conditions for storing in the RAM 25 of the card 20, setting values for determining the measured data, such as maximum value, minimum value, average value, etc., are input in sequence.

As a result, the IC card 20 stores a reference value for determining an abnormality in the measurement data, information necessary for analyzing the cause of the abnormality, and the like.

After this, the IC card 20 inputted as above
is inserted into the card insertion slot 50a of the data logger device 50, and the connection terminal section 21 and the input/output terminal section 10 are connected. When the data logger 'A'' II 50 is operated, various data stored in the IC card 20 are taken in.

Next, when measurement data is input with logging by the data logger device 50, the CPU 3 monitors the measurement data based on the data from the IC card 20. At this time, the measurement data is extracted based on the above sampling rate and sampling conditions, and is sent to the IC via the input/output terminal section IO.
sent to card 20.

In this IC card 20, measurement data is sequentially sent to rl.
It is stored in the AM 25, but at this time it is held based on the program in the ROM 23. For example, measured data is compared with a set value, and if it exceeds or exceeds the set value, the time and other information are stored together with the value at that time. Therefore, this IC
The card 20 will hold physical quantities as digital data.

After this, the IC cart 20 is transferred to the personal computer 30.
When connected to the personal computer 30, the IC
Data on the card 20 is taken in.

Accordingly, when arithmetic processing is started, the sampled data is analyzed. Then, this analysis data is stored in the RAM 25, and is also graphed and displayed in the C
Displayed on RT34. Alternatively, the information can be printed by the printer 35 and recorded.

Therefore, the user can know the content of the measurement data and the value in case of an abnormality based on this analysis data.

Next, a case will be described in which a control signal is output using an IC card.

First, the IC cart 20 is connected to the personal computer 30, and a desired sequence program is installed by inputting data using the keyboard 33.

As a result, the IC card 20 retains program data for operating relays and the like of the device.

After that, insert the IC card 20 into the card insertion slot 40a of the controlled object N device 40, and connect the connection terminal section 21 and the input/output terminal section 1.
Connect with 0.

When the operation of the controlled device 40 is started, the control based on the sequence program of the IC card 20 is executed.
Relays etc. are activated in response to the signal, and the equipment is turned on and off, and sequence control is performed according to the timing schedule.

Furthermore, if the control target device 40 is connected to the data logger device 50 and the IC card 20 is connected, a control signal can be sent to the control target 21 + SR"r 40 via the control unit l, so that the sequence It becomes possible to perform operation control based on a program.

Note that this IC card 20 can be prepared in many types depending on the types of various physical quantities to be measured, and various output cards for performing various sequence controls can be created. It is also possible to edit various data and create search cards. Further, in the above embodiment, a case has been described in which the IC card 20, which is the most portable memory card, is used, but it is of course possible to use a floppy disk, a magnetic card, or the like.

(Effects of the Invention) As explained above, the data logger device of the present invention includes a terminal section that can be connected to the data logger device and an external device, and a memory card that can store various data, setting values, programs, etc. In addition, it is equipped with a control unit that monitors the measured data and stores it in the memory card, so when the measured data is input, it is sampled and compared with the set value, and if there is an abnormality, the value, time, etc. It can be stored on a memory card.

Therefore, by analyzing the measurement data and sampling data, this analysis data and the measurement data can be used as a new information source. In addition, it is also possible to manually store sequence programs etc. from the data logger device or other external equipment on a memory card, so by connecting this memory card to the data logger device and various systems 1Tll target equipment, sequence programs etc. can be stored manually. can be given as a control signal to control the operation of various devices.

Therefore, there are excellent effects such as increasing the range of use of the memory card as an information storage medium and significantly improving the performance of the data logger device.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, FIG. 1 is an electrical block diagram showing a schematic configuration of a data logger device, FIG. 2 is an electrical block diagram of an FC card, and FIG.
The figure is an electrical block diagram of the personal computer, and FIG. 4 is a perspective view showing how the IC card is used.

Claims (1)

[Claims] (1) It has a terminal section that is connected to the connection terminal provided on the data logger or the connection terminal of an external device, and a storage area that stores various data, and stores measurement data based on the preset sampling number and sampling conditions. a memory card that stores a program for determining at least the maximum value, minimum value, and average value of measurement data, and a sequence program for outputting a control signal, which changes over time. A data logger device comprising a control unit that monitors measurement data, sends the measurement data to the memory card, and stores a value when the measurement data exceeds the set value and the time at that time in a predetermined storage area. .