Overview
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CN 4100 redundant without CMs
The innovative communication node SIMATIC CN 4100 is a flexible and powerful platform for all communication tasks. Thanks to its scalable, modular design and the option of connecting third-party systems, SIMATIC CN 4100 can be used to implement efficient system concepts for process control technology.
Redundant components increase system availability and reduce standstill times. With the option of single or redundant operation, the communication node offers a high degree of flexibility for every application.
Benefits
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Highlights at a glance
Availability
- Redundant 24 V DC power supply
- Hot swapping during operation (with redundant station)
- Module expansion during operation
- Fanless design
- ECC work memory
- Temperature range -30 °C to +60 °C
Powerful data communication via Ethernet:
SIMATIC CN 4100 can be connected to the Industrial Ethernet bus system via the integrated Ethernet interfaces.
Connectivity to a SIMATIC PCS 7 AS-410 is established via the plant bus over interfaces X1 and X2 of the CN 4100. The data exchange between CN 4100 and S7-410 takes place via S7 communication with the PUT/GET service. The two other interfaces are used to connect OPC UA servers and/or MODBUS/TCP devices.
The assignment of the interfaces is as follows:
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A singular SIMATIC CN 4100 station uses the X1.x interfaces. In the redundant configuration, the X2.x interfaces are also used for the second CPU module.
Design
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SIMATIC CN 4100 consists of the following components:
CPU module
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CN 4100 CPU
The CPU module is the central module of the SIMATIC CN 4100. All operations and communication tasks are carried out by the CPU. For each CPU, there is one interface for the connection to the plant bus and two separate interfaces for the connection to the end devices (e.g. OPC UA server or MODBUS/TCP device)
The SIMATIC CN 4100 can be operated singularly as well as redundantly.
The redundant configuration of the SIMATIC CN 4100 offers significantly higher availability. It works according to the 1-out-of-2 principle, whereby in the event of an error the active CPU is switched bumplessly to the standby CPU. You can also set up the power supply redundantly for each subsystem.
The following protocols are currently supported singularly/redundantly:
Singular configuration (1x CPU):
- OPC UA client
- MODBUS/TCP
- S7 communication (PUT/GET)
Redundant configuration (2x CPUs)
- OPC UA client
- MODBUS/TCP
- S7 communication (PUT/GET)
Racks
The SIMATIC CN 4100 rack offers connection options for 2x CPU modules and 2x communications modules. The integrated Ethernet interfaces provide the connectivity. The rack is installed by screwing it onto a mounting plate in the control cabinet.
X1.x interfaces are assigned to CPU1, X2.x interfaces are assigned to CPU2.
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Integration
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Singular configuration with OPC UA and MODBUS/TCP:
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Redundant configuration with MODBUS/TCP and OPC UA:
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System connection SIMATIC PCS 7
- User-friendly commissioning with CNET (CN Engineering Tool)
- Integration in SIMATIC PCS 7 with CN 4100 block library
Security
Due to an integrated firewall, there is no connection between the plant bus interfaces X1 and X2 and the lower-level networks that are connected via the other interfaces (e.g. OPC UA server, MODBUS/TCP devices).
There is no routing between the networks.
Approvals
SIMATIC CN 4100 fulfills the current national and international standards
