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CHAPTER 4
PLC Setup Component
This chapter describes the PLC Setup component and the procedures involved in changing a PLC's settings both
offline and online.
The PLC Setup component allows the PLC settings to be entered for individual C-series PLCs, CV-series PLCs or
CS1 PLCs. More than one PLC Setup component can be opened at any one time allowing a number of PLCs to be
configured simultaneously.
Once a PLC has been defined in a project in terms of name, device type and network type, changing various
settings allows the PLC behavior to be altered. Options can also be selected to check the PLC is functioning
correctly.
The tabbed PLC settings component shows only options available for the selected PLC. Some options will be
greyed out in instances where they are not applicable to the PLCs current state.
The status bar displays the PLC and CPU type and the operational mode of the PLC.
The PLC Setup component can be forced to stay as the top window by selecting the Always on top option from the
Options menu.
For Moving, resizing, maximising, minimising and closing windows, refer to Microsoft Windows online help.
Access to the PLC Setup component is from the invoking application and also via the CX-Net Network
Configuration Tool, refer to Chapter 8 - CX-Net Network Configuration Tool for further information.
To close the PLC Setup dialog, select the Close button in the title bar.
CS/CJ/CP-Series PLC Settings
The following paragraphs describe the features of the PLC Setup component associated with CS/CJ/CP-series
PLCs. Refer to Chapter 4 - PC to PLC Communications for details of transferring PLC setup information to and
from the PLC.
The common Set Default option resets PLC Setup component values to the default settings.
PLC Startup
The PLC Startup tab of the PLC Setup component allows certain PLC settings to be made which always take
effect on startup (until they are explicitly altered). Use the following procedure to apply settings in the PLC
Startup tab.
Startup Hold
The Hold area in the PLC's Work Area Memory retains the status when either the operating mode is changed,
power is interrupted or the PLC operation is stopped. You can select one or all the following options for the hold
area to retain.
1, 2, 3...
Mode
This selects the default PLC operation mode when the PLC is powered on:
♦ Program - Select this for online programming when the PLC is powered on.
Note:
When configuring a PLC it is advisable to have the PLC operational manual available
for reference. A warning is displayed before any changes are made to a PLC's current
state. This gives the option of cancelling the procedure.
Note:
The information provided in this chapter is not definitive because of the wide variety of
PLCs and their differing nature - even within the same PLC series. Consult the relevant
PLC operating manual for specific PLC settings information.
1. Force Status Hold Bit - Specifies that the status of the forced status hold bit is to be
maintained (ticked) or reset to OFF when power is next turned on.
2. IOM Hold Bit - Specifies that the status of the IOM hold bit is to be maintained (ticked) or
reset to OFF when power is next turned on.
PART 2: CX-Server PLC Tools
CHAPTER 4 – PLC Setup Component
CX-Server PLC Tools_Page 37
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