ALTUS Nexto NX3004 User Manual

6. Redundancy with NX3030 CPU
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This way, redundant Ethernet network can be built easily, without
the need for the clients, connected to a NIC Teaming, to
implement complex scripts to switch IP addresses.
PROFIBUS Network and Vital
Failures Configuration
The CPU supports 2 PROFIBUS networks, each one may be
redundant or not. It’s also possible to configure if each
PROFIBUS network failure is considered vital (causes switchover)
or not.
Single and cyclic user task
Only one user task is allowed, called MainTask. This task is
cyclic.
Main POU programs:
NonSkippedPrg and ActivePrg
At a redundant project creation, MasterTool generates
automatically two empty POU programs, which must be filled by
the user:
- NonSkippedPrg: this POU is executed in both CPUs (PLCA and
PLCB), independent on the redundancy state (Active or Inactive).
It’s used for diagnostics and special commands management.
- ActivePrg: this POU is executed only in the Active CPU and is
used for the final user’s process control.
Table 6-1. General features of a redundant CPU
Purchase Data
The minimum configuration for a redundant CPU implies on the purchase of the following modules:
 Two racks, which must be chosen between the three available models according to the modules
to be installed:
o NX9000: 8 positions (4 double modules)
o NX9001: 12 positions (6 double modules)
o NX9002: 16 positions (8 double modules)
o NX9003: 24 positions (12 double modules)
 Two NX8000
 Two NX3030
 Two NX4010
 Two AL-2319
Furthermore, it may be necessary to purchase the following additional modules:
 One PX2612
 One AL-2317/A
 One AL-2317/B
 Two modules NX5001 for each simple PROFIBUS network.
 Four modules NX5001 for each redundant PROFIBUS network.
 Two modules NX5000 for each additional simple Ethernet network.
 Four modules NX5000 for each additional redundant Ethernet network (NIC Teaming).
ATTENTION:
It can be installed up to 4 PROFIBUS modules in each half-cluster. This means that we can
configure up to 4 simple PROFIBUS networks or up to 2 redundant PROFIBUS networks.

ALTUS Nexto NX3004 Specifications

General

Brand	ALTUS
Model	Nexto NX3004
Category	Processor
Language	English