Description
In Constant Window mode, each sweep can consume a variable amount of time. The Logic Window
is executed in its entirety each sweep. The CPU alternates among the three windows, allowing them
execute for a time equal to the value set for the Constant Window timer. The overall CPU sweep time
is equal to the time required to execute the Housekeeping, Input Scan, Logic Window, and Output
Scan phases of the sweep plus the value of the Constant Window timer. This time may vary due to
sweep-to-sweep variances in the execution time of the Logic Window.
An application that requires a certain amount of time between the Output Scan and the Input Scan,
permitting inputs to settle after receiving output data from the program, would be ideal for Constant
Window mode.
The value of the Constant Window timer can be configured to be any value from 3 to 255 ms. The
Constant Window timer value may also be set by the programming software or by the user program
using Service Request functions #3, #4, and #5.
The following figure illustrates three successive sweeps in Constant Window mode. Note that the
total sweep times may vary due to sweep-to-sweep variations in the Logic Window, but the time
given to the Communications and Background Windows is constant. Some of the Communications or
Background Windows may be skipped, suspended, or run multiple times based on the Constant
Window time.
Vibro-meter VM600 IRC4
Our products are widely used in CNC mechanical metallurgy, oil and gas, petrochemical industry,
Chemical industry, paper printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,
Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.
brand | Product Name | Product model | Order No |
Vibro-meter | Plc/dcs/servo/module | VM600 IRC4 | nothing |
Place of Origin | Voltage range (VDC) | System memory (Mb) | weight |
Europe and America | 275-79 | 310 | 2.0KG |
Place of shipment | Delivery method | How to use | Applicable industries |
Xiamen | Shunfeng Express | Commissioning and installation | Power Plant Steel Plant Cement Plant Shipboard Papermaking |
Service advantages | Foreign import, goods preparation and supply | Reasonable price and reliable quality | Pictures are for reference only |
Product features | Primary source of goods, supply by model | After sales guarantee | Chen 1810693-7731 |
Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
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Lead time problem
(1) For the spot products in stock, the de
livery can be arranged on the same day after the contract payment is signed
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Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
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Contact: Chen
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