JPH03172093A - Industrial process transmitter - Google Patents

Industrial process transmitter

Info

Publication number
JPH03172093A
JPH03172093A JP31257189A JP31257189A JPH03172093A JP H03172093 A JPH03172093 A JP H03172093A JP 31257189 A JP31257189 A JP 31257189A JP 31257189 A JP31257189 A JP 31257189A JP H03172093 A JPH03172093 A JP H03172093A
Authority
JP
Japan
Prior art keywords
transmitter
terminal equipment
sequence
terminal
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP31257189A
Other languages
Japanese (ja)
Inventor
Takashi Yoshioka
隆 吉岡
Takahiro Fudeyasu
筆保 隆弘
Yutaka Komiyama
小宮山 裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP31257189A priority Critical patent/JPH03172093A/en
Publication of JPH03172093A publication Critical patent/JPH03172093A/en
Pending legal-status Critical Current

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  • Programmable Controllers (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To change the operating condition of a transmitter by transmitting a sequence program from a terminal equipment for communication, which is connected to an output signal line, to a reception terminal equipment, setting the program to the reception terminal equipment and applying a command from the reception terminal equipment to the transmitter according to the program. CONSTITUTION:A portable terminal equipment 8 for communication is connected to output signal lines 3 and 3 and the sequence is inputted, transmitted to a reception terminal equipment 4-1 and stored in a sequence program storage part. When the sequence is stored, the command is sent from the reception terminal equipment 4-1 to transmitters 1-1,..., 1-n according to the sequence program even in the state of detaching the connection of the terminal equipment 8 for communication. At the transmitters 1-1,..., 1-n, data converted while being matched to the sequence program are sent to the reception terminal equipment 4-1. Therefore, since the operating condition of the transmitter can be set and changed by the sequence programmed in the reception terminal equipment, the transmitter can execute a sequence operation even in case the terminal equipment for communication is not connected at all times as needed.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は、工業プラント等で使用される圧力や流量等
の工業プロセス伝送装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an industrial process transmission device for transmitting pressure, flow rate, etc. used in industrial plants and the like.

(口)従来の技術 一般に、圧力や流星の工業プロセス伝送器は、センサで
検出した圧力や流量を検出埴に応して4〜20mAの電
流出力を2木の出力信号線を用いてコントローラ等に送
出している。この種の工業プロセス伝送器において、従
来、スパンなどの運転条件を設定するのに、伝送器自体
に種々の設定器を設けるか、2本の出力信号線に通信川
端末器を接続し、この通信用端末器から指令を入力し、
ディジタル信号として出力電流に重畳して伝送器に送信
し、スパン等の運転条件を設定している。
(Example) Conventional technology In general, industrial process transmitters for pressure and meteors use two wooden output signal lines to output a current of 4 to 20 mA depending on the pressure or flow rate detected by a sensor to a controller, etc. It is being sent to Conventionally, in order to set operating conditions such as span in this type of industrial process transmitter, various setting devices were provided on the transmitter itself, or communication terminal devices were connected to the two output signal lines, and this Input commands from the communication terminal,
It is superimposed on the output current as a digital signal and sent to the transmitter to set operating conditions such as span.

(ハ)発明が解決しようとする課題 上記した従来の工業プロセス伝送器において、種々の設
定器を伝送器に備えるものは、伝送器が大型化し、小型
化を企図する近年の方向に反するし、また、通信用端末
器を用いて運転条件等を設?するものは、設定を行うた
めの通信は伝送器と〕m信端末器問でなされるのみであ
り、通信用端末器の接続を出力信号線から外すと通信は
一切行われず、外部から運転条件を変史することはでき
ない。そのため、たとえば昼間と夜間でプロセス量が大
きく穴なるような場合、毎目2回、携飛型の通信川0J
.;末器を接続してスパンを変更せねばならず、面倒で
あった。
(c) Problems to be Solved by the Invention In the conventional industrial process transmitters described above, those equipped with various setting devices are contrary to the recent trend of increasing the size of transmitters and downsizing them. Also, can you set operating conditions etc. using a communication terminal? Communication for setting is only done between the transmitter and the communication terminal, and if the communication terminal is disconnected from the output signal line, no communication occurs at all, and the operating conditions cannot be changed from outside. cannot be altered. Therefore, for example, if there is a large gap in the process volume during the day and night, the portable communication river 0J will be used twice every day.
.. ;It was troublesome as it was necessary to connect the terminal equipment and change the span.

この発明は、上記門題点に着門してなされたものであっ
て、通信用端末器を都度接続しなくても、スパン等の運
転条件の変更が可能な工業プロセス伝送装置を提供する
ことを目的としている。
The present invention has been made based on the above-mentioned problem, and an object of the present invention is to provide an industrial process transmission device in which operating conditions such as span can be changed without having to connect a communication terminal each time. It is an object.

(二)課題を解決するための手段及び作用この発四の工
業プロセス伝送装■は、7E流13力信号線に通信川端
末器を接続することにより、この通信用端末器からの指
令をディジタル信号として前記電流出力信号線に重畳し
、そのディジタル信号を検出し、運転条件を確立する一
方、入力されるプロセス量の測定値を前記通信用端末器
にディジタル信号で送出する手段を1而えた伝送器と、
前記電流出力信号線に接続され、入出力インタフェース
機能、シーケンス機能及び伝送器からのアナログ信号、
ディジタル信号を出力する信号出力端子、外部からのア
ナログ信号、ディジタル信号を入力する信号入力端子を
有し、かつ前記伝送器と通信可能に構威した受信端末器
とからなり、前記通信端末器あるいは外部から、前記受
信端末器にシーケンスプログラムを入力するようにして
いる。
(2) Means and operation for solving the problem This industrial process transmission system (4) connects a communication terminal device to the 7E style 13-power signal line, and digitally transmits commands from this communication terminal device. A means is provided for superimposing the digital signal on the current output signal line as a signal, detecting the digital signal, establishing operating conditions, and transmitting the input measured value of the process quantity to the communication terminal device as a digital signal. a transmitter;
connected to the current output signal line, input/output interface function, sequence function and analog signal from the transmitter;
It consists of a receiving terminal having a signal output terminal for outputting a digital signal, a signal input terminal for inputting an analog signal from the outside, and a signal input terminal for inputting a digital signal, and configured to be able to communicate with the transmitter, and the communication terminal or A sequence program is input to the receiving terminal from the outside.

この工業プロセス伝送装置では、通信用端末器を伝送器
の出力信号線に接続し、通信用端末器から受信端末器に
シーケンスプログラムを送信し、セットする。一旦、受
信端末器にシーケンスプログラムがセンl・されると、
後は、受信端末器からシーケンスプログラムにしたがっ
た指令が、伝送器に与えられ、これにより伝送器は運転
条件が変更される。
In this industrial process transmission device, a communication terminal is connected to the output signal line of the transmitter, and a sequence program is transmitted and set from the communication terminal to the receiving terminal. Once the sequence program is sent to the receiving terminal,
After that, commands according to the sequence program are given from the receiving terminal to the transmitter, and the operating conditions of the transmitter are thereby changed.

(ホ)実施例 以下、実施例により、この発明をさらに詳細に説明する
(E) Examples The present invention will be explained in more detail with reference to Examples below.

?1図は、この発明の一実施例を示す工業プロセス伝送
装巴のブロック図である。同図において、複数の伝送器
1−1 ・・・ 1−,,は、それぞれ2本の出力信号
線3・3を介して受信端末器4−.に接続されている。
? FIG. 1 is a block diagram of an industrial process transmission system showing an embodiment of the present invention. In the figure, a plurality of transmitters 1-1, . . . , 1-, . It is connected to the.

また、同様に伝送器2も2本の出力信弓線3・3を介し
て受信端末器4−2に接続されている。受信端末器4−
1  4−2は、通信ハス6を介して上位計算機7に接
続されている。
Similarly, the transmitter 2 is also connected to the receiving terminal 4-2 via two output transmission lines 3, 3. Receiving terminal device 4-
1 4-2 is connected to the host computer 7 via the communication bus 6.

伝送231−+  ・・・ 1■、2は、それ自体はよ
く知られたものであり、流量(電磁流量計)や圧力(1
’Eカ計)のプロセス量を入力に受けて、4〜20mA
のアナログ出力信号あるいはディジタル信号どして出力
する機能を備えている。また、伝送器1−1等は出力信
号線3・3に携帯型の通信用端末器8が接続されると、
この通信用端末器8からのディジタル指令により、スパ
ン等の運転条件を確守したり、逆に通信用端末器8にプ
ロセス量等を伝送する等の通信機能を備えるものである
Transmission 231-+ ... 1■, 2 are well known in themselves, and are used for flow rate (electromagnetic flowmeter) and pressure (1
4 to 20mA by receiving the process amount of 'Eka meter) as input.
It has the function of outputting analog output signals or digital signals. Furthermore, when the portable communication terminal 8 is connected to the output signal lines 3 and 3 of the transmitter 1-1, etc.,
Based on digital commands from the communication terminal 8, it is provided with communication functions such as ensuring operating conditions such as span, and conversely transmitting process quantities and the like to the communication terminal 8.

受信端末器4−1は、複数の信号入力端子を有し、これ
らの信号入力端子に伝送器1−1 ・・・ 1−7から
の2木の出力信号線3・3が接続されている。
The receiving terminal 4-1 has a plurality of signal input terminals, and two output signal lines 3 and 3 from the transmitters 1-1...1-7 are connected to these signal input terminals. .

また、受信端末器4−1は、シーケンスプログラムを格
納する記憶部を有し、通信用端末器8から入力されるシ
ーケンスプログラムを格納する。受信端末”JN 4 
− +は、シーケンスプログラムにしたがい、各伝送器
1−1、・・・ l,に指令を与えることができる。ま
た、受信端末器4−.は、通信バス6を介して上位計算
機7と接続されており、この上位計算機7からでも、シ
ーケンスプログラムに関する指令を受けることができる
Further, the receiving terminal device 4-1 has a storage section that stores a sequence program, and stores the sequence program input from the communication terminal device 8. Receiving terminal "JN 4"
- + can give commands to each transmitter 1-1, . . . l, according to a sequence program. In addition, the receiving terminal device 4-. is connected to a higher-level computer 7 via a communication bus 6, and can also receive instructions regarding the sequence program from this higher-level computer 7.

また、受信端末器4−.は、ディジタル入力端子5−.
、ディジタル出力端子5−2、アナログ入力端子5−3
、アナログ出力端子5−4を備えており、入力端子5−
.のON/OFF(ディジタル)、入力端子5−3のレ
ベル(アナログ)の情報によって、ある定まった指令を
受信用端末器4−+を通して送ることも可能であり、ま
た警報等、内部の情報を2本の信号線3・3に重畳して
送り、受信端末器4−1より、出力端子5−2、5−4
を介して外部へ出力することも可能に構威されている。
In addition, the receiving terminal device 4-. is the digital input terminal 5-.
, digital output terminal 5-2, analog input terminal 5-3
, is equipped with an analog output terminal 5-4, and an input terminal 5-4.
.. Depending on the ON/OFF (digital) information of the input terminal 5-3 and the level (analog) of the input terminal 5-3, it is possible to send a certain command through the receiving terminal 4-+, and also to send internal information such as alarms. It is superimposed on the two signal lines 3 and 3, and is sent from the receiving terminal 4-1 to the output terminals 5-2 and 5-4.
It is also possible to output the data to the outside via the .

すなわち、受信端末器は、入出力インタフェース機能も
備えている。
That is, the receiving terminal also has an input/output interface function.

なお、受信端末器4−2も基本構成において、受信5;
j末2”;,4−.と変わりはないが、ここでは、中一
の伝送器2の出力信号線3・3が入力に桜続されている
In addition, in the basic configuration of the receiving terminal device 4-2, the receiving terminal 4-2 also has the receiving terminal 5;
2";, 4-. However, here, the output signal lines 3, 3 of the middle transmitter 2 are connected to the input.

次に、上記実施例装置において、伝送23にスパン設定
を行う場合の具体例を説明する。今プロセス量が第2図
に示すように変化する場合を想定すると、AMl3 :
 O O〜PMIO:00の時間帯では、最大スパンで
計測し、PMIO:00〜ΔM8:00の時問帯は、最
大スパンの20%のスパンで計測すればよい。したがっ
て、毎日AM800にスパンを最大スパンに、PMIO
:00にスパンを最大スパンの20%に変更する指令を
行うように、シーケンスプログラムを受信端末器4−1
に設定しておけばよい。この設定は携柑型の通信用端末
器8を出力信号線3・3に接続し、通信用端末器8から
シーケンスを入力し、受信端末器4−1に送信し、シー
ケンスプログラム記憶部に格納する(第3図のステンプ
STI)。格納されると、通信用端末器8の接続が外さ
れた状態でも受信端末器4−1からシーケンスプログラ
ムにしたがった指令が伝送器1−1 ・・・ l.に送
られ(ステップST2)、伝送器1−1 ・・・ l−
7では、そのシーケンスプログラムに合わせて変換され
たデータを受信端末!34−+に送ることになる(ステ
ップST3)。例えばAMI1二〇〇では最大スパンで
の計測データが、PMII:00では、最大スパンの2
0%のスパンの計測データが伝送される。
Next, a specific example of setting a span in the transmission 23 in the apparatus of the above embodiment will be described. Now assuming that the process amount changes as shown in Figure 2, AMl3:
In the time zone from O O to PMIO: 00, the maximum span is used for measurement, and in the time zone from PMIO: 00 to ΔM8:00, it is sufficient to measure at a span that is 20% of the maximum span. Therefore, every day AM800 span to max span, PMIO
:00, the sequence program is sent to the receiving terminal 4-1 to issue a command to change the span to 20% of the maximum span.
You can set it to . This setting connects the portable communication terminal 8 to the output signal lines 3, 3, inputs the sequence from the communication terminal 8, transmits it to the receiving terminal 4-1, and stores it in the sequence program storage unit. (Step STI in Figure 3). Once stored, even if the communication terminal 8 is disconnected, commands according to the sequence program can be sent from the receiving terminal 4-1 to the transmitters 1-1...l. (step ST2), and the transmitters 1-1...l-
7, the data converted according to the sequence program is sent to the receiving terminal! 34-+ (step ST3). For example, with AMI1200, the measurement data at the maximum span is measured, but with PMII:00, the measurement data is 2 of the maximum span.
Measurement data of 0% span is transmitted.

なお、上記において、受信端末器4−,から伝送器への
指令は、通信用端末器8から伝送器へ運転条件を設定す
るのと同一の構成で実現できる。
Note that, in the above, commands from the receiving terminal 4- to the transmitter can be realized with the same configuration as setting operating conditions from the communication terminal 8 to the transmitter.

(へ)発明の効果 この発明によれば、伝送器の出力信号線に、入出力イン
タフェース機能、シーケンス機能を有する受信端末器を
設け、受信端末器にプログラムされたシーケンスにより
、伝送器の運転条件を設定変更できるので、いちいち所
要時に通信用端末器を接続せずとも、伝送器にシーケン
ス動作を行わせることができる。また、1つの通信用端
末器から?1数台の伝送器のシーケンス機能を指令でき
る。さらに、受信端末器にディジタル入出力端子、アナ
ログ入出力端子を備えるものであるから、伝送器からは
アナログにディジタル信号を重畳して送信することによ
り、2木の信号出力線で複数の情報を送受できる。また
、複数の情報が送受できるにもかかわらず、信号出力線
は2木なので伝送2Hの入出力端子は最小でよく、小型
の伝送器を作れる等、種々の利点がある。
(f) Effects of the Invention According to the present invention, a receiving terminal having an input/output interface function and a sequence function is provided on the output signal line of the transmitter, and the operating conditions of the transmitter are determined by the sequence programmed in the receiving terminal. Since the settings can be changed, it is possible to have the transmitter perform sequence operations without having to connect a communication terminal each time it is necessary. Also, from one communication terminal? It is possible to command the sequence function of one or more transmitters. Furthermore, since the receiving terminal is equipped with digital input/output terminals and analog input/output terminals, multiple pieces of information can be transmitted via two signal output lines by superimposing a digital signal on analog from the transmitter and transmitting it. Can be sent and received. Furthermore, although a plurality of pieces of information can be transmitted and received, since the signal output line is two trees, the number of input/output terminals for the transmission 2H can be minimized, and there are various advantages such as the ability to create a compact transmitter.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、この発明の一実施例を示す工業プロセス伝送
装置のブロック図、第2図は、同工業プロセス伝送装置
におけるシーケンスプログラム設定例を説明するための
プロセス量変化例を示す図、第3図は、同シーケンスプ
ログラム設定の動作を説明するためのフロー図である。 1−1・・・・1−7・2:伝送器、 3:出力信ぢ線
、4−,・4−2:受信端末器、 5−1=ディジタル入力端子、 5−2:ディジタル出力端子、 5−3:アナログ入力端子、 5−4:アナログ出力端子、 7:上位計算機、 8:通信用端末2′i.
FIG. 1 is a block diagram of an industrial process transmission device showing an embodiment of the present invention, and FIG. FIG. 3 is a flow diagram for explaining the operation of setting the sequence program. 1-1...1-7/2: Transmitter, 3: Output signal line, 4-,/4-2: Receiving terminal, 5-1=Digital input terminal, 5-2: Digital output terminal , 5-3: Analog input terminal, 5-4: Analog output terminal, 7: Host computer, 8: Communication terminal 2'i.

Claims (1)

【特許請求の範囲】[Claims] (1)電流出力信号線に通信用端末器を接続することに
より、この通信用端末器からの指令をディジタル信号と
して前記電流出力信号線に重畳し、そのディジタル信号
を検出し、運転条件を確立する一方、入力されるプロセ
ス量の測定値を前記通信用端末器にディジタル信号で送
出する手段を備えた伝送器と、前記電流出力信号線に接
続され、入出力インタフェース機能、シーケンス機能及
び伝送器からのアナログ信号、ディジタル信号を出力す
る信号出力端子、外部からのアナログ信号、ディジタル
信号を入力する信号入力端子を有し、かつ前記伝送器と
通信可能に構成した受信端末器とからなり、前記通信端
末器あるいは外部から、前記受信端末器にシーケンスプ
ログラムを入力するようにしたことを特徴とする工業プ
ロセス伝送装置。
(1) By connecting a communication terminal to the current output signal line, the command from this communication terminal is superimposed on the current output signal line as a digital signal, the digital signal is detected, and the operating conditions are established. On the other hand, a transmitter is provided with a means for transmitting the input measured value of the process quantity to the communication terminal device as a digital signal, and the transmitter is connected to the current output signal line and has an input/output interface function, a sequence function, and a transmitter. a receiving terminal having a signal output terminal for outputting an analog signal and a digital signal from the outside, and a signal input terminal for inputting an analog signal and a digital signal from the outside, and configured to be able to communicate with the transmitter; An industrial process transmission device characterized in that a sequence program is input to the receiving terminal from a communication terminal or from the outside.
JP31257189A 1989-11-30 1989-11-30 Industrial process transmitter Pending JPH03172093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31257189A JPH03172093A (en) 1989-11-30 1989-11-30 Industrial process transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31257189A JPH03172093A (en) 1989-11-30 1989-11-30 Industrial process transmitter

Publications (1)

Publication Number Publication Date
JPH03172093A true JPH03172093A (en) 1991-07-25

Family

ID=18030821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31257189A Pending JPH03172093A (en) 1989-11-30 1989-11-30 Industrial process transmitter

Country Status (1)

Country Link
JP (1) JPH03172093A (en)

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