Mapping Parameters On Unidrive; Internal 32-Bit Parameters On Ud70 - Control Techniques UD77 User Manual

5.3

Mapping Parameters on Unidrive

The mapping for the cyclic data channels on the Unidrive DeviceNet
interface can be set from the Unidrive keypad using #20.PP
parameters.
The mapping method is similar to the method used for mapping
analogue inputs and outputs.
parameter takes the form MMPP, where MM = menu number of the
target parameter and PP = parameter number of the target parameter.
NOTE
#20.01 to #20.20, and #20.50 are all reserved for DeviceNet set-up and
configuration, and should not be used in DPL programs.
The default mapping values are shown in the table below.
Cyclic
Channel
IN Word 1
IN Word 2
IN Word 3
OUT Word 1
OUT Word 2
OUT Word 3
NOTE
If a mapping parameter is set to an invalid value, e.g. destination
parameter is read only, or parameter does not exist, the Unidrive will
reset the mapping parameter (#20.PP) to its default value.
If a cyclic channel is not required, setting the mapping value to -1 will
disable it. The data word will still be transmitted over the network, but
the data value will not be written to any Unidrive parameter.
NOTE
The cyclic data channels do not use decimal points. For example, the
digital speed reference 1 (#1.21) has units of Hertz, accurate to 1
decimal place. To write a value of 24.6Hz to #1.21, the value must be
transmitted as 246.
5.4

Internal 32-Bit Parameters on UD70

The Unidrive DeviceNet Interface has a set of internal 32-bit registers in
the UD70. These are addressed as _Pxx%, _Qxx%, _Rxx% or _Sxx%
from the DPL program, and the _Qxx% registers are used with the
internal position controller in the UD70.
A 32-bit cyclic channel can be created for IN data, OUT data or both, by
combining polled channels 1 and 2,or channels 2 and 3. This allows full
32-bit values to be directly transferred between the UD70 and the
controlling PC or PLC. (See the "User's Guide" for the UD70 for more
information.)
18
The value entered in the mapping
Mapping Default Mapping Status
Parameter
#20.07 #90.11, fieldbus status word
#20.03 #2.01, post-ramp speed reference
#20.04 #4.02, torque-producing current
#20.06 #90.11, fieldbus control word
#20.01 #1.21, digital speed reference 1
#20.02 #4.08, torque reference
Issue Number: 2