Lenze · E84AYCEC communication module (POWERLINK) · EDS84AYCEC EN 4.0 - 02/2019
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Commissioning
Optimisation of networks
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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" er-
ror 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 "
"
, the value 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.