Allen Bradley 1756-L71 Controllogix processor module
Brand: Allen Bradley
Model:1756-L71
Type: processor module
Country of production: United States
1756-L71 Function Introduction AllenBradleySLC500 is a small
framework programmable logic controller. It also includes discrete,
analog, special I/O modules, and related peripheral devices. The
SLC500 controller has strong processing power, and its
communication network, functional modules, and storage capacity can
be flexibly selected and configured. RSLogix500 ladder diagram
programming software provides a convenient editing and development
environment, allowing users to configure I ≤ O modules by clicking
and selecting with the mouse. At the same time, it is equipped with
a powerful symbol database editor and fault diagnosis function,
which can help developers save time and maximize production
efficiency. Kunrui002
PLC has small size, light weight, and is easy to install. The input
and output system of PLC can intuitively reflect the changing
status of on-site signals and the operating status of the control
system through various means, such as internal working status,
communication status, I/O point status, abnormal status, and power
supply status. There are some eye-catching explanations that are
very beneficial for operation and maintenance personnel to monitor
the system. 1756-L71 Function Introduction: The input signal types
for the supply of programmable controllers can be switch quantity,
analog quantity, and digital quantity. Generally speaking, the
input unit consists of two parts: one is the interface circuit
connected to the controlled device, and the other is the input
image register.
The input unit receives various control signals from user devices,
such as limit switches, operation buttons, selection switches, jump
switches, and other sensors. Through the interface circuit, these
signals are converted into signals that the central processing unit
can recognize and process, coexisting with the input image
register. At runtime, the CPU reads input information from the
input image register and processes it, storing the processing
results in the output image register.
In order to prevent various interference signals and high-voltage
signals from entering the PLC, affecting its reliability or causing
equipment damage, the on-site input interface circuit is generally
isolated using optoelectronic coupling circuits. The key component
of the optoelectronic coupling circuit is the optocoupler, which is
usually composed of light-emitting diodes and optotransistors.
1756-L71 Function Introduction: Usually, PLC input types can be DC
(DC24V), AC, AC, and DC. The power supply for the input circuit is
provided externally. Some can also be provided internally by the
PLC. For DC input, it is divided into two types based on the form
of the field input interface circuit: source input and destination
input. The vast majority of PLCs in Europe and the United States
use leakage inputs, while the vast majority of PLCs in Asia use
source inputs.
The PLC is connected to the control object through input/output
terminals. The input and output terminals of PLC usually have three
organizational forms, namely sink type, group type, and separate
type. Most of the input terminals of PLCs adopt a sink type, while
some PLCs adopt a group type to increase flexibility in use.
Collect temperature, pressure, and flow rate, and control the
heating flow rate based on the collected data, achieving the goal
of energy conservation. According to the changes in outdoor
climate, adjust the opening of the electric valve in the original
pipeline network to timely control the temperature return of the
secondary pipeline network. By scheduling the given control curve,
the operating parameters of each heat exchange station are within
the given range. Colleagues, the central control room can remotely
control and adjust operating parameters of the dispatched electric
valves as needed. The gprs dtu system configuration can achieve
temperature control and frequency conversion of filling remote
control water pumps. The upper computer chooses to configure the
King configuration software, which is combined with the database to
store and analyze all data, and can cooperate with the optimization
software for priority control.
Terms:
We ships worldwide and accepts T/T and Paypal.
All items are subject to availability and passing our QA testing
and
inspection.
Turnaround Time:
Standard order processing is 1-2 business days plus shipping method
chosen.
Rush and off-hours service available for an additional fee.
Packaging and Handling:
Items are safely packaged in custom shipping cartons for
protection.
Shipping:
We ship worldwide use UPS,FedEx, DHL or Truck Freight when meeded.
Call to use a shipping service other than the ones listed.
International Customers are responsible for all Customs fees, VAT
and other
fees applied by their respective countries.
All shipments are fully insured.
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(Modicon,SMC,SICK,NORGREN,Siemens etc.)
Linture Technology Co,. Ltd
Contact person: Vivian
E-mail: linture0319@163.com
Cellphone: +0086-18026552038
Wechat:18026552038
WhatsApp:+86 18026552038
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