Issue Number: 2
19
The 32-bit cyclic channel is configured by mapping IN or OUT polled
data channel 1 (#20.06 or #20.07) to a 32 bit register. Channel 2 will
contain the data high word (upper 16 bits of the 32-bit register),
irrespective of the mapping value set for channel 2. If channel 2 is
mapped to a 32-bit register, channel 2 will contain the data low word
(lower 16 bits of the 32-bit register) and channel 3 will automatically
contain the data high word.
The 32-bit registers are addressed as parameters in menu 70 to menu
73. (See table below.) To map a cyclic channel to one of these
registers, the parameter reference must be entered in the appropriate
mapping parameter.
Registers Parameter
Reference
_P00% - _P99%
#70.00 to #70.99
_Q00% - _Q99%
#71.00 to #71.99
_R00% - _R99%
#72.00 to #72.99
_S00% - _S99%
#73.00 to #73.99
NOTE
If all polled channels are mapped to 32 bit registers, polled channels 1
and 2 will be combined to a 32-bit channel and written to or read from
the mapped parameter for channel 1. (The mapping for channel 2 will
be ignored.) Channel 3 will be read from or written to the low 16-bits
of the mapped parameter.
5.5 Storing
Parameters
Although any changes to the mapping will take effect after a UD70 reset
sequence, the new values must be stored in non -volatile memory if they
are to be restored automatically when the Interface is next powered up.
5.5.1
Saving Unidrive Parameters (Menu 1 to 19)
To initiate the Unidrive parameter save sequence, set #MM.00 to 1000
and press the red RESET button on the keypad.
All parameters in these menus are saved in the EEPROM in the
Unidrive. If the Unidrive DeviceNet interface is replaced, the Unidrive
will retain all values in menu 1 through menu 19 when the Unidrive is
next powered up.
5.5.2
Saving UD70 Parameters (Menu 20 and Internal)
To initiate the non-volatile save sequence for these parameters, set
#17.19 to 1. The UD70 will then store menu 20 and the internal 32-bit
parameters, clear #17.19 back to zero and completely reset itself.
All menu 20 parameters and internal 32-bit parameters (_Pxx% and
_Qxx%) are stored in the FLASH memory of the UD70. If the Unidrive
DeviceNet interface is replaced, the menu 20 parameters may need to
be re-configured. If the replacement module has been used before, the
stored values may be different from the normal default settings.
The UD70 can also be configured to store these parameters
automatically when the Unidrive powers down. The store routine is
