Emerson SI-DeviceNet User Manual page 38

If the output trigger source parameter is set to zero (for example by a user program in an
applications module), this indicates to the SI-DeviceNet module that all the mapped
parameters are ready to be written to. The module will then write the data from the
master into the mapped parameters, and will then set the output trigger source
parameter to 1. When the output trigger source parameter is set to 1, it indicates to the
SI-DeviceNet module that the mapped parameters are not ready to be written to, and
therefore any new data from the master will not be written to the mapped parameters in
the drive until the output trigger source parameter is again set to zero.
Custom product type
S.01.031
A backwards compatibility mode is present in SI-DeviceNet. Pr S.01.031 can be used to
allow the SI-DeviceNet module to appear as an SM-DeviceNet module, this only applies
to the network and not the control/status words and parameter sizes. The module must
be configured to match the existing network settings of the drive it is replacing (including
any parameter mappings).
Using the compatibility mode allows the replacement of drives on a DeviceNet network,
without having to make any changes to the master network configuration, it changes the
identity code of the module so that the master believes that a similar type drive is
present for a particular node.
Custom product version
S.01.032
When compatibility mode has been enabled, Pr S.01.032 should contain the correct
product code to respond to the DeviceNet master. This product code should match the
product code that is being used in the appropriate EDS files.
When using compatibility mode, ensure that the correct EDS file for the simulated drive
NOTE
is being used and not the actual drive.
This mode only changes the network to emulate the Unidrive SP on the network.
Changes to the control method and data size differences must still be considered. This
mode does NOT allow direct replacement.
WARNING
Bus Off trip
S.01.034
The CAN hardware layer used by DeviceNet has a built-in safety mechanism where
nodes experiencing regular problem with receiving or transmitting CAN frames will go
off line. In this case, the SI-DeviceNet will trip the drive and it will not be possible to
communicate with the drive via DeviceNet until the SI-DeviceNet has been reset.
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Default Unidrive M (0)
Range Unidrive M (0) or Unidrive SP (1)
Access RW
Default 0
Range 0 to 9999
Access RW
Default Enable (0)
Range Enable (0) or Disable (1)
Access RW
SI-DeviceNet User Guide
Issue Number: 2