Initial commissioning
4.3 Commissioning and operating redundant Links
IE/WSN-PA Link
Compact Operating Instructions, 12/2012, A5E02509264-AD
77
4.3
Commissioning and operating redundant Links
Requirements for the redundancy function
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2 Links with order number 6GK1 411-6CA40-0BA0
(Device variant with connector for an external antenna)
The two Links must meet the following requirements:
–
Identical hardware product version
–
Identical firmware version (at least version 4.3.17)
–
Identical firmware options
–
Both devices have a static IP address
You also require the following:
●
1 switch (to improve reliability, 2 switches are recommended.)
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2 Ethernet cables for connection of the 2 Links to the switch
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1 Ethernet cable for connecting the two Links (management connection)
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1 Ethernet cable for connecting the configuration PC to the network
Redundant operation
During operation, the active Link handles the data traffic. The two Links monitor each other.
The standby device monitors the communication of the active device on the wireless
interface. If there is a disruption or following a failover, the active link sends an alarm to the
connected control system.
Failover between the active and standby device
The two redundant devices can be switched over manually via the Web interface. They then
swap over their roles as active or standby device.
An automatic failover is triggered by a problem on the active device. The following events on
the active device lead to a failover to the standby device:
●
Interruption of the power supply
●
Interruption of the wireless link with the WSN
●
Failure of the Link
●
Interruption of the connection to the Ethernet subnet
–
Physical interruption
–
Interruption on the connection to the control system (via Modbus or clients connected
to HART-IP)
The failover is displayed on the "Diagnostics" > "Advanced" > "Redundancy Status" page of
the Web interface of the Link: When there is a failover, the display of the active device first
changes to "Standby" status on the diagnostics page, then briefly to "offline" and then finally
to "Standby" status.
Summary of Contents for SIMATIC NET IE/WSN-PA Link
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Page 42: ...Zulassungen IE WSN PA Link 42 Kompaktbetriebsanleitung 12 2012 A5E02509264 AD ...
Page 44: ...Frequenzbereiche IE WSN PA Link 44 Kompaktbetriebsanleitung 12 2012 A5E02509264 AD ...
Page 46: ...Index IE WSN PA Link 46 Kompaktbetriebsanleitung 12 2012 A5E02509264 AD ...
Page 50: ...Table of contents IE WSN PA Link 50 Compact Operating Instructions 12 2012 A5E02509264 AD ...
Page 88: ...Approvals IE WSN PA Link 88 Compact Operating Instructions 12 2012 A5E02509264 AD ...
Page 90: ...Frequency ranges IE WSN PA Link 90 Compact Operating Instructions 12 2012 A5E02509264 AD ...
Page 92: ...Index IE WSN PA Link 92 Compact Operating Instructions 12 2012 A5E02509264 AD ...