CN201681284U

CN201681284U - Programmable controller output conversion module

Info

Publication number: CN201681284U
Application number: CN 200920251702
Authority: CN
Inventors: 武建成; 董明军; 王文刚; 闻艳萍; 胡新立; 王�泓
Original assignee: Tianjin Textile Engineering Research Institute Co Ltd
Current assignee: Tianjin Textile Engineering Research Institute Co Ltd
Priority date: 2009-12-15
Filing date: 2009-12-15
Publication date: 2010-12-22
Anticipated expiration: 2019-12-15

Abstract

Disclosed is a programmable controller output conversion module which totally adopts a transistor output mode. The output conversion module adopts a pluggable relay module, the front end of the relay adopts the photoelectric isolation technology, the rear end of the relay is additionally provided with an interference filter, and the relay has lamplight indications. The programmable controller output conversion module has the advantages that 1, a transistor output PLC module is adopted so as to increase system stability and prolong service life of a system, 2, the output conversion module can be connected with AC-DC signals, 3, the output conversion module has wide selection range of output power users and increases system application environments, and 4, the output conversion module is simpler and more convenient in field maintenance and does not affect operation of field equipment.

Description

Programmable Logic Controller output modular converter

(1), technical field

The utility model relates to a kind of Programmable Logic Controller module, particularly relates to a kind of Programmable Logic Controller output modular converter.

(2), background technology

Programmable Logic Controller (being called for short PLC) output at present has three types: relay output, transistor output, thyristor output, but a kind of PLC output can only be selected one, cannot mix three kinds of patterns simultaneously.

Relay output can be used for alternating current-direct current, uses more extensively, but get an electric shock electric current, voltage limit is arranged generally, causing the damage of getting an electric shock easily; Though damage and can keep in repair, the maintenance cost height, the cycle is long, and producer's general recommendations directly changes the monoblock circuit board, and expense is higher, and applying unit can't easily cause field apparatus complete machine parking state to be repaiied by oneself.

Transistor output is direct current output, has characteristics such as reaction velocity is fast, the action of nothing machinery, stable height, owing to can only be applied to DC environment, environment for use is subjected to certain limitation.

Thyristor output is to exchange output, has characteristics such as reaction velocity is fast, the action of nothing machinery, stable height, owing to can only be applied to communication environment, environment for use is subjected to certain limitation.

(3), summary of the invention

In order to overcome the deficiencies in the prior art part, the utility model provides a kind of Programmable Logic Controller output modular converter.

The purpose of this utility model:

1, improves PLC serviceable life, reduce outside damage PLC disturbing effect and eliminating electric shock.

2, provide the field maintemance personnel to keep in repair means fast, fragile device can accomplish that spare part is prepared and replacing fast.

The technical solution of the utility model is to realize like this.

The Programmable Logic Controller output modular converter of this programme, its module all adopts the transistor output mode; Wherein: the output modular converter adopts and can plug relay module; The relay front end adopts photoelectric isolation technology; The relay rear end increases disturbs filtration unit; Relay is provided with the light indication.

Usefulness of the present utility model is: 1. adopt transistor output PLC module, the stability and the serviceable life of improving system.2. export modular converter and can connect the alternating current-direct current signal.3. output power user range of choice is wide, improves the system applies environment.4. field maintemance is easier, does not influence the operation of field apparatus.

(4), description of drawings

Accompanying drawing is the system schematic of the Programmable Logic Controller output modular converter of this programme.

(5), embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

The Programmable Logic Controller output modular converter of this programme, its module all adopts the transistor output mode, does not have the machinery action, and the reliability height belongs to direct current signal.

Wherein:

The output modular converter adopts and can plug relay module, is easy to change.

The relay front end adopts photoelectric isolation technology, prevents that external disturbance from sealing in the PLC system module.

The relay rear end increases disturbs filtering function, prevents interference and the damage of external signal to relay.

Relay increases the light indication, makes things convenient for the integrity of field maintemance personnel inspection module.

Claims

1. a Programmable Logic Controller is exported modular converter, and it is characterized in that: its module all adopts the transistor output mode; Wherein:

The output modular converter adopts and can plug relay module;

The relay front end adopts photoelectric isolation technology;

The relay rear end increases disturbs filtration unit;

Relay is provided with the light indication.