User guide

MDX-ETHERNET User Guide 27
Issue : a www.leroy-somer.com
Table 7.1 IN/OUT cyclical data formats
The method used to map data to and from the MDX-ETHERNET module is similar to the
method used in the drive for mapping analog and digital I/O. The reference for the
source or target parameter is entered in the mapping parameter in the form MMPP,
where :
MM = menu number of the target/source parameter,
PP = parameter number of the target/source parameter.
Table 7.2 MDX-ETHERNET mapping parameters
If number of channels (Pr 15.39 or Pr 15.40) is set to an invalid value (e.g. Pr 15.39 = 3
and Pr 15.10 = 1040, Pr 15.11 = 201 and Pr 15.12 = 0), the MDX-ETHERNET will
indicate a configuration error by the mapping status parameter (Pr 15.49). Refer to
section 12.8 Cyclic parameter number (Mapping status) for more details.
The following sections show some example data formats that can be selected, and the
parameter mapping that will apply (by default) to each format.
7.2.1 Two cyclic channels only (default - compression off)
This data format provides two cyclic data channels with no non-cyclic data. The total
data length is four words OUT and four words IN.
To select this data format, set Pr 15.40 and Pr 15.39 = 2. This data format is selected by
default.
Pr 15.40
Output cyclical data parameters
Default 2
And Range 0 to 10
Pr 15.39
Input cyclical data parameters
Access RW
IN channel Mapping parameter OUT channel Mapping parameter
0 Pr 15.10 0 Pr 15.20
1Pr 15.11 1Pr 15.21
2Pr 15.12 2Pr 15.22
3Pr 15.13 3Pr 15.23
4Pr 15.14 4Pr 15.24
5Pr 15.15 5Pr 15.25
6Pr 15.16 6Pr 15.26
7Pr 15.17 7Pr 15.27
8Pr 15.18 8Pr 15.28
9Pr 15.19 9Pr 15.29
A cyclic data channel does not use decimal points. For example digital speed reference
1 (Pr 1.21) has units of Rpm, accurate to 2 decimal place. To write a value of 2.46 RPM
to Pr 1.21, the value must be transmitted as 246.
NOTE