the role of module

Modular used to separate, organize and packaged software. Each module performs a specific sub-function, all the modules are assembled by some method, as a whole, complete system required functions.
plc moduleshas the following basic attributes: external characteristics of the interface, functions, logic, status, functional status and interface modules reflect the logic reflect its internal characteristics.
In the structure of the system, the modules are combined decomposition and replacement unit. Modularity is a complex system can be decomposed into ways to better manage modules. It can be set by different components of different functions, to decompose the problem into a plurality of small independent, interacting components, to deal with complex, large-scale software.

Run mode
1, the operating mode to work independently
Each module can work independently, even a single set of module failure does not affect the whole system work.
2. Start function classification
When each group of modules to reach full capacity the system will automatically activate another set of modules to ensure the system is always output to match actual demand and to ensure the efficient operation of each plc output module, but also save resources and improve efficiency.

What is the role of PLC input and output modules are used in the fire?

Now the temperature sensitive smoke into intelligent coding and non-coding, coding can directly intelligent feedback signal to the host address (host needs to know where the fire occurred), the non-coding the feedback address signal can not be directly connected to an input module common practice module are capable of encoding such a host can receive address signals. For example now in the basement of temperature-sensitive non-coding common sense as long as the temperature of each partition to an input module, the host just know which partition is on the line of fire. Do not need to locate the point. The use of smoke on the ground pointing to the different needs of the specific location. Then the need for a lot of non-coding module, and therefore the need for direct feedback encoder type flue gas temperature sensation address. The same is now also have coding manual alarm button code hydrant pump start button coded telephone Some devices can not be directly input and output signals such as pressure switch damper valve flow indicator signals, etc. These can only have a current output is not coded signal. Then need to use the input plc modules, the device output power to the plc input output modules signal to the host. Output module is required when the host device host only direct linkage control output code modules, and then output power required to drive the linkage equipment.

What is the fire in a single-input \ single output modules?

This plc module is used for a variety of live action and a motion signal output passive devices such as: exhaust valves, send valve, dampers and other access to the control bus.
This module uses electronic encoder to encode in the small plc has a pair of normally open, normally closed contacts. Module has a 24V DC voltage output for the relay contacts connected to the active output to meet the different needs of the scene. Another module also has a switching signal input for the switch contacts and the field devices connected to the field devices to confirm whether the operation. It should be noted that the module should not be directly connected to AC control loop contact, to prevent damage to the module strong AC interference signal or control equipment.

What is the role of input and output modules are used in the fire?

Now the temperature sensitive smoke into intelligent coding and non-coding, coding can directly intelligent feedback signal to the host address (host needs to know where the fire occurred), the non-coding the feedback address signal can not be directly connected to an input module common practice module are capable of encoding such a host can receive address signals. For example now in the basement of temperature-sensitive non-coding common sense as long as the temperature of each partition to an plc input module, the host just know which partition is on the line of fire. Do not need to locate the point. The use of smoke on the ground pointing to the different needs of the specific location. Then the need for a lot of non-coding plc modules, and therefore the need for direct feedback encoder type flue gas temperature sensation address. The same is now also have coding manual alarm button code hydrant pump start button coded telephone Some devices can not be directly input and output signals such as pressure switch damper valve flow indicator signals, etc. These can only have a current output is not coded signal. Then need to use the input module, the device output power to the input module module output signal to the host. Output module is required when the host device host only direct linkage control output code modules, and then output power required to drive the linkage equipment.

output module plc,input module plc

plc digital input output moduleeach play any role in the PLC control system
Digital input module is an external control signal or field detection signal processing module to the PLC CPU, an external signal is generally button, proximity switches, limit switches, plc output module is based on the signal processing logic and internal logic programming input module taken into the , the results of treatment before, switch output signal is output by the high and low output module, to drive external relays, contactors, lights, solenoid valves and other components, thereby enabling the external device corresponding action

Types of PLC input and output modules

Roughly divided into the digital input plc DI, digital output plc DO, analog input AI, analog output AO. Digital inputs and outputs are generally of 24V. Class 2 4 kinds of analog quantity, type 2, respectively, and the current-voltage type. There 0-10V voltage type and -10 to 10V. Current type mainly 4-20MA, 0-20MA. Then the module through A / D converter, converting the analog quantity into a + number between 32767 ~ -32768, and then exercise control

PLC single input-output module features:

1, two bus polarity.
2, the power cord, there is polarity.
3, accounting for two consecutive address points, using electronic encoding encoding.
4, each two monochromatic PLC show the plc digital input output module operation information.
5, enter the linkage equipment operation after two feedback signals.
6, dual voltage output signal.
7, the power line power, the feedback input line circuit, the input line open or short circuit, the module returns fault signal.
8, has a line fault detection options.
9, the plc digital output module can be set to pulse output or level output, appearances default level output.
10, can be connected with an output module PLC output a set of normally open and normally closed output one active node or 24V voltage signal (to increase the output current).

Input Output Module works

digital output module (hereinafter referred to as modules) for switching the bus system in the normal fire radio systems and fire radio broadcasts between. Here I hope to see some information to help you in Downing online.plc analog output moduleembedded microprocessor, microprocessor controller communication and fire alarm, power bus brownout detection, input and output line fault detection, output control, input logic state judge, the status LED control. Module after receiving the fire alarm control start command, pull the relay, the scene shifted from the normal speakers to fire radio broadcasts, and the indicator lights, while the answering signal information transmitted fire alarm controller, indicating successful handover