ALTUS Nexto NX3004 User Manual

6. Redundancy with NX3030 CPU
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Modifications which Demand Off-Line Download and the Interruption of the Process Control
The following modifications in a project will make it impossible to be downloaded in a redundant
system with no interruption of the process control:
 Modifications in the redundant memory areas (changes in the Redundancy Parameters from the
module NX4010)
ATTENTION:
Will not be possible to change the size of redundant memory areas without the interrupt of the
process control. Thus, these areas must be carefully planned and previously configured.
Modifications which Demand Off-Line Download
The following modifications demand off-line downloads in the PLC where MasterTool is connected:
 To add or remove devices from the device tree, such as:
o Modules in the main rack (NX5001 PROFIBUS masters, NX5000 Ethernet interfaces, etc.)
o Remotes in PROFIBUS networks
o I/O modules in remotes in PROFIBUS networks
o MODBUS instances
 To modify parameters inside devices from the device tree, such as:
o IP addresses and other Ethernet interfaces parameters
o PROFIBUS master parameters
o PROFIBUS remotes parameters
o I/O modules parameters inside PROFIBUS remotes
 To modify a task’s period
 Project update due to MasterTool IEC XE programmer Update.
Modifications which Allow On-Line Download
A priori, the modifications not mentioned in the sections Modifications which Demand Off-Line
Download and the Interruption of the Process Control and Modifications which Demand Off-Line
Download allows on-line download.
Even this way, the modifications which allow on-line download in the PLC where MasterTool is
connected are listed below. These modifications are valid for variables, POUs and GVLs, redundant
or not:
 To add POUs from the program type, if these POUs don’t need to be associated to any task
 To remove POUs from the program type, if these POUs aren’t associated to any task
 To add or remove POUs from the function or function-block type
 To modify the code of any type of POU (program, function or function block)
 To add or remove symbolic variables in any POU type (program, function or function block)
 To add or remove instances of function blocks in POUs from the program or function-block type
 To add or remove GVLs
 To add or remove symbolic variables or instances of function blocks in GVLs
On-Line Download of Modifications
In the Off-Line and On-Line Modifications Download section, modifications which demand off-line
download were described, along with the ones that allow online download.
An online change must be made by connecting the MasterTool to the NET 1 channel of the active
CPU, using its unique IP address. Before version 2.01 of the MasterTool IEC XE, it was necessary
that the user selected the "Create Boot Application" option in the Communication menu, after
sending the application for the changes to be sent to the non-volatile memory area of the CPU and

ALTUS Nexto NX3004 Specifications

General

Brand	ALTUS
Model	Nexto NX3004
Category	Processor
Language	English