6 optimisation of networks, Optimisation of networks, E84aycec communication manual (ethernet powerlink) – Lenze E84AYCEC User Manual
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E84AYCEC communication manual (Ethernet POWERLINK)
Commissioning
Optimisation of networks
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EDS84AYCEC EN 3.0 - 09/2012
6.6
Optimisation of networks
SDO bandwidth
The SDO channel width (
) is the size of the asynchronous channel used for
parameter setting and diagnostics. A higher value improves the transmission of large
amounts of data (e.g. parameter downloads) and at the same time reduces the number of
possible nodes.
Maximum time for device search
During the device search, the managing node has to wait until all controlled nodes have
been found.
Unless all controlled nodes are available in the defined EPL cycle time, the
"EPL_BOOTUP_1" error message is generated. The managing node remains in this
status.
If the managing node has found all controlled nodes, it starts the network.
Due to machine or system-specific switch-on sequences, it may be required to adapt the
following EPL objects:
CN object 0x1F99: NMT_CNBasicEthernetTimeout_U32 (
)
MN object 0x1F89: NMT_BootTime_REC
Note!
The channel bandwidth should only be increased if the network is below
capacity limit.
Note!
In order to avoid a too quick change to the "
"
of the 0x1F99 object (NMT_CNBasicEthernetTimeout_U32) must be higher than
the value of the 0x1F89 object (NMT_BootTime_REC) which is the case by
default.