JPS6392908U

JPS6392908U -

Info

Publication number: JPS6392908U
Application number: JP18860086U
Authority: JP
Priority date: 1986-12-09
Filing date: 1986-12-09
Publication date: 1988-06-15

Description

[Brief explanation of the drawing]

第１図は本考案の全体構成図、第２図は本考案
に係るリモートＩ／Ｏシステムの一構成例を示す
ブロツク図、第３図は第２図示のシステムにおけ
るリモートＩ／Ｏ子局の一構成例を示すブロツク
図、第４図は第３図示のリモートＩ／Ｏ子局が行
うプロトコル変換ないし送受信の処理手順の一例
を示すフローチヤート、第５図ＡおよびＢは、そ
れぞれ、リモートＩ／Ｏ親局によるデータ受信お
よび送信の手順の一例を示すフローチヤート、第
６図は従来のプログラミングコントローラとロー
ダとの結合側を示すブロツク図、第７図はプログ
ラマブルコントローラとローダとを用いた従来の
リモートＩ／Ｏシステムを示すブロツク図である
。１……基本ラツク、２……中央処理ユニツト、
３，８，１６……ローダ、４，１４……リモート
Ｉ／Ｏ親局、５，２４……リモートＩ／Ｏ子局、
６，１５……リモートＩ／Ｏ伝送路、７……増設
ラツク、８……Ｉ／Ｏインタフエース、９……バ
ツフアメモリ、１０……ＭＰＵ、１１……システ
ムメモリ、１２，２２，３２……クロツク、１３
，１４……コネクタ、２５……ローダ制御部。 Fig. 1 is an overall configuration diagram of the present invention, Fig. 2 is a block diagram showing an example of the configuration of a remote I/O system according to the present invention, and Fig. 3 is a diagram of a remote I/O slave station in the system shown in Fig. 2. FIG. 4 is a block diagram showing an example of a configuration, FIG. 4 is a flowchart showing an example of the protocol conversion or transmission/reception processing procedure performed by the remote I/O slave station shown in FIG. 3, and FIGS. A flowchart showing an example of the procedure for data reception and transmission by the /O master station, Fig. 6 is a block diagram showing the connection side between a conventional programming controller and a loader, and Fig. 7 is a conventional flowchart showing a connection side between a programmable controller and a loader. FIG. 1 is a block diagram showing a remote I/O system of FIG. 1...Basic rack, 2...Central processing unit,
3, 8, 16... Loader, 4, 14... Remote I/O master station, 5, 24... Remote I/O slave station,
6, 15... Remote I/O transmission line, 7... Expansion rack, 8... I/O interface, 9... Buffer memory, 10... MPU, 11... System memory, 12, 22, 32... clock, 13
, 14...connector, 25...loader control section.

Claims

[Scope of utility model registration request]

a first converting means that is connected to the programmable controller main body via a signal transmission path, is provided in a slave station in which an input/output unit to which a controlled device can be connected is arranged, and is connected to a loader to convert the electrical specifications of the signal; A loader control device comprising: second converting means for converting a protocol of a signal exchanged between the loader and the programmable controller main body.