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cubloc:monitorling:index [2026/02/20 15:37] – created - external edit 127.0.0.1cubloc:monitorling:index [2026/03/04 21:18] (current) – [Observing D-Area Double Words] admin
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-====== Monitoring ======+====== Ladder Logic Monitoring ======
  
-Cubloc Studio supports real-time monitoring of Ladder Logic. +CUBLOC STUDIO supports a "Monitoring" function that displays the operation status of LADDER LOGIC in real-time. 
 +You can enter or exit the monitoring mode by clicking the Monitoring ON/OFF switch on the toolbar at the top of the screen. Alternatively, pressing the **F2** key will enter the monitoring mode.
  
 {{ :cubloc:monitorling:monitoring.png?nolink |}} {{ :cubloc:monitorling:monitoring.png?nolink |}}
  
-Status of contacts that are ON will be displayed in green. Timer and +The following is a screen capture during monitoring. Contacts in the ON state are displayed with a "Green Block," and elements like timers and counters display their current values.
-counter values will be displayed in decimal. +
-The monitoring speed can be controlled by going to "Setup" -> "Ladder +
-Logic Environment Options..." and adjusting the "Monitoring Speed" slider. +
-If the monitoring speed is too fast, it can negatively affect Cubloc’s +
-communications as monitoring consumes Cubloc's resources. We +
-recommend a monitoring speed of 5.+
  
-{{ :cubloc:monitorling:monitoring2.png?nolink |}}+{{ :cubloc:monitorling:gif_laddersedebug2.gif?nolink |}}
  
-Please be sure to stop monitoring before editing or downloading.+The status of I/O ports is displayed at the bottom of the screen. Ports that are ON are displayed in blue bold text. Only ports from 0 to 63 are shown.
  
-===== Watch Point =====+To perform monitoring, the source code must exist. You must first download the program to the controller before you can start monitoring.
  
-The Watch Point feature is useful when, in a long Ladder Logic program, two +Editing and saving are not possible in LADDER monitoring mode. Additionally, downloading or displaying the BASIC debug window is unavailable while monitoring. Please ensure you turn off LADDER monitoring before performing other tasks.
-registers cannot be viewed simultaneously in the same screen due to their +
-location in the ladder. Two apostrophes are used to add a watch point.+
  
-\\ \\  +===== Watch Points =====
-Examples: +
-'’P0 '’P1 '’D0 +
-\\ +
  
-{{ :cubloc:monitorling:watchpoint.png?nolink |}}+When you want to view the contents of a specific relay or memory address, use **WATCH POINTS**. In an empty area of the LADDER, type two consecutive "apostrophes" followed by the relay number you wish to monitor. (Note: These are two single apostrophes, not a double quotation mark.) After downloading, the relay's status will be displayed at the watch point during monitoring mode.
  
-\\ +{{ :cubloc:monitorling:gif_laddersedebug.gif?nolink |}}
  
-NOTE: To set a watch point it’s two apostrophes, not a quotation mark that must be used.+===== Observing D-Area Double Words =====
  
-{{ :cubloc:monitorling:watchpoint2.png?nolink |}}+A Double Word represents two words as a single value. By typing **''DD** followed by the address, the value will be displayed as a Double Word. (This feature is supported from CUBLOC Studio V4.8 onwards.) 
 + 
 +{{ :cubloc:monitorling:ddword.png?nolink |}} 
 +===== Forced I/O ===== 
 + 
 +During online monitoring, you can use the "Forced I/O Setting" function on P contacts. Even if a hardware input is not received, setting a Forced I/O to ON will treat the input as being received. Output ports can also be forcibly set to ON or OFF. 
 + 
 +To set this, double-click or right-click the corresponding contact in monitoring mode to display the popup menu, then select ON or OFF. 
 + 
 +Disabling the force mode returns the ladder to its original logic execution. All Forced I/O settings are cleared when the power is turned OFF. 
 + 
 +{{ :cubloc:monitorling:gif_ladderseforce2.gif?nolink |}} 
 + 
 +The Forced I/O function can be used when operation is hindered due to a sensor failure. By forcibly setting the problematic port to ON or OFF, you can continue to verify the PLC's operation. 
 + 
 +Alternatively, it can be used for simple testing without hardware wiring or physical I/O manipulation. Forced I/O is available for ports 0 through 63. 
 + 
 +===== MODIFY Function ===== 
 + 
 +During online monitoring, if you double-click (or right-click) a location displaying a D-area value, as indicated by the arrow in the figure below, the **MODIFY** window will appear. 
 + 
 +{{ :cubloc:monitorling:gif_laddersemodify.gif?nolink |}} 
 + 
 +You can change the contents of the D-area at will during operation. If another part of the ladder logic is updating that specific D-area, the changed value will not be maintained. This operation is executed only once and does not forcibly hold the value.
  
 [[cubloc:index#Ladder_Logic:|Go CUBLOC Ladder Logic home]] [[cubloc:index#Ladder_Logic:|Go CUBLOC Ladder Logic home]]
  
  
cubloc/monitorling/index.1771601855.txt.gz · Last modified: by 127.0.0.1

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