Lika EM58 MB, User Manual

Page: 71 / 92

ES58 • EM58 MODBUS®
And so on.
NOTE

If the
Scaling function
is disabled (bit 0 in the
Operating parameters
[0008 hex] register= 0), Preset value [0004-0005 hex] must be lower
than or equal to the total hardware resolution (i.e. hardware counts per
revolution

number of hardware revolutions).

If the
Scaling function
is enabled (bit 0 in the
Operating parameters
[0008 hex] register= 1), Preset value [0004-0005 hex] must be lower
than or equal to the Custom total resolution [0002-0003 hex] .
WARNING
After having entered a new value in the registers
Custom counts per
revolution [0000-0001 hex]
and / or
Custom total resolution [0002-0003
hex]
it is compulsory to check the
Preset value [0004-0005 hex]
and then
perform a homing operation (bit 11
Perform counting preset
in
Control Word
[0009 hex] = 1).
Offset value [0006-0007 hex]
[Registers 7-8, Unsigned32, ro]
As soon as you send the
Perform counting preset
command (see the bit 11 in
Control Word [0009 hex]
), the current position of the encoder is saved in this
register. The offset value is then used in the preset function in order to calculate
the encoder position value to be transmitted. To zero set the value in this
register you must upload the factory default values (see bit 10,
Load default
parameters command, in Control Word [0009 hex] on page 74).
For any further information on the preset function and the meaning and use of
the related registers and commands
Preset value [0004-0005 hex]
,
Offset
value [0006-0007 hex]
and
Perform counting preset
refer to page 70.
MAN ESx58x_EMx58x MB E 1.3 Programming parameters 71 of 92