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UM EN ILC 330/350
3-2
PHOENIX CONTACT
3.4
Download Changes
(ILC 330 ETH / ILC 350 ETH / ILC 350 ETH/M)
The ILC 350 ETH Inline Controller version 4.6F/1.20 or later with processor ARM_L_40
and the Inline Controllers ILC 330 ETH and ILC 350 ETH/M support the "Download
Changes" function.
The "Download Changes" function can be used to download project modifications to the
control system(s) where they can be activated without stopping the running PLC.
For detailed information on this function, please refer to the PC WorX online help.
When downloading changes to one or more control systems, please observe the following:
Specify if the system is to ensure the real-time behavior of the PLC prior to starting the
download process.
Figure 3-1
Ensure real-time behavior
If the "Ensure real-time for Download Changes" checkbox is enabled in the "Download"
dialog box (recommended standard settings), the system will attempt to "Download
Changes" without affecting the real-time conditions of the tasks executed on the control
system.
If downloading changes is not possible, e.g., the data volume to be copied is too large, an
error message is output. In this case, disable the "Ensure real-time..." option (i.e., real-time
violations permitted) in order for all changes to be executed. (In this context, please note
the background information in the real-time behavior section in the online help.)
If real-time violations are permitted, first ensure that your PLC application is running
within safe limits. Note that any real-time violation may lead to unexpected
consequences in the automation system as user tasks may not be processed for a short
period. Therefore, check the level of risk before disabling this option.
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