Phoenix Contact ILC 330 Series, User Manual, Page: 44 / 96

ILC 330.../350...
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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 ARM_L_40 processor and
the ILC 330 ETH and ILC 350 ETH/M Inline controllers support the “Download Changes”
function.
The “Download Changes” function can be used to send project modifications to the
controller(s) and activate them there without having to stop the active PLC.
When downloading changes to one or more controllers, please observe the following:
Specify whether the system should ensure the realtime behavior of the PLC before starting
the download process.
Figure 3-1 Ensuring realtime
If the “Ensure real-time for Download Changes” checkbox is activated in the “Download”
dialog box (recommended default setting), the system attempts to execute the “Download
Changes” function without violating the realtime conditions of the tasks executed on the
controller.
If the modifications cannot be sent, for example, because the amount of data to be copied
is too large, an error message is output. In this case, disable the “Ensure real-time...” option
(i.e., permit realtime violations) so that all modifications can be executed. (In this case,
please refer to the background information provided in the online help, “Realtime behavior”
section.)
For more detailed information on this function, please refer to the online help for PC Worx.
NOTE:
If realtime violations are permitted, first ensure that your PLC application is running within
safe limits. Please note that each realtime violation may result in unexpected
consequences in the automation system, as under certain circumstances user tasks are
not processed for a short time. Therefore, check the level of risk before disabling this
option.