Rockwell Automation 1771-TCM TEMPERATURE CONTROL - Manual (Page 29)

4–2 Configuring the Modules
Publication 1771Ć6.4.5 - January 1997
When you first open any of the configuration screens, the software
attempts to perform an upload from the PLC processor so that the
screen displays the current values the module is using. If the
software cannot upload from the processor (e.g. if the connection to
the processor has been broken), then the software performs an
upload from the file. Now the data source (the PLC or file) is shown
in the left-hand side of the status bar at the bottom of each
configuration screen. The right-hand side of the status bar displays
the destination when you perform a download.
While the software is uploading data from the PLC processor or file,
it checks each value to make sure it is within the allowable range of
values for the particular parameter. If the value is outside the
allowable limits, it will be reset to a default value for that parameter.
When this occurs, a warning message appears on the screen. Under
normal conditions, this should not occur, but it may happen when
you are uploading data from a module that has never been
configured, since the data table will contain random data.
Normally, when you perform an upload or download, you are
transferring information for a single loop only. Some screens allow
you to upload or download information for all eight loops in a
module at the same time. This is useful, for example, to download
an entire module from the PLC processor and save it to a file without
having to perform eight separate uploads and downloads. However,
since the command can alter data you may not intend to alter, you are
prompted for confirmation when you attempt to download an entire
module at once.
Screens that are intended to monitor the module as it operates, such
as the Loop Monitor screen or the Module Monitor screen, only
display information from the PLC processor. If the connection to the
processor is not available when you attempt to open a monitor
screen, you will receive an error message and the screen will close.
To configure a module, access the module configuration screen:
1. At the Module Manager screen, select the module.
2. From the
Module menu, select Configure.
Accessing the Module menu
Clicking on the right mouse button while the pointer is over the
module list on the Module Manager screen will display a popup
version of the Module menu. (Clicking on the right mouse button
brings up context-sensitive menus throughout the software.)
Accessing the Module
Configuration Screen
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