### CCN Controller The information below provides a FULL description of this microblock and all of its properties. What information you see and what you can do with it depends on your license and the application you are in, and in some cases, a controller's driver version.
Microblock family | Carrier microblocks
Icon and symbol |
What it does | A CCN Controller microblock does the following: Establishes and verifies communication with a CCN device in the CCN network. Contains the CCN device address so that all CCN points in the control program can link to it. Determines the refresh time for these related CCN points. Write points use standard network microblocks that have individual refresh timers.
Click for details below Properties Simulation
#### Properties TIPS Alt+click any value in the WebCTRL® or Field Assistant interface to view property details, including its editing privilege and expression (location path) for use on graphics. You can right-click some properties in the EIKON® Property Editor and select Make editable or Make read-only to determine that property's functionality in your system.
Display Name | The microblock label used in the interface. You can use any characters (including spaces) in this field, except for the " character.
Reference Name RefName | Use the default reference name unless you want a more descriptive name for graphics or network links. Limitations: lower case only limited to 40 characters cannot begin with a number must be unique within a control program
Refresh Time | The interval at which all CCN points in the program read their target values from the CCN device.
Bus | The number of the CCN network. (0-239)
Element | A unique number assigned to each device on a CCN network (1-239).
Editing Privilege | Preset - Each microblock property has an appropriate privilege or role assigned to it. You can use Global Modify in the WebCTRL® interface to find out what the actual privilege is. CAUTION If you change the Editing Privilege from Preset, the privilege you select will be used for all properties of this microblock, which is not always desirable.
Show Property Page Text | Check to show this microblock's value on the equipment's Properties page.
Comm error limit | The number of communication failures to allow before a CCN device is considered offline and the microblock's COMM output goes OFF.
Refresh controller info | Select to initiate a read of the CCN device so that device information such as model number, serial number, etc. can be obtained.
#### Simulation Define the value(s) the microblock will use when you simulate the control program.