
OPERATION IN THE ETHERNET/IP NETWORK
3. The table 6.2 presents the configuration parameters of the words and the content of the writing words.
Table 6.2:
Example of configuration of the writing words.
Configuration Parameter
Mapped Parameter
Net Id
Output Area Value
C8.1.2.6 Data Write Word #1
S5.2.5
685
0013h
C8.1.2.7 Data Write Word #2
S5.3.1
695
0007h
C8.1.2.8 Data Write Word #3
S5.3.2.1
696
03FFh
✓
NOTE!
Mapping of readonly parameters (status, diagnostics) or invalid parameters will have no effect.
Parameters that have the property
Stopped
, when mapped on the writing words, are only changed
when the motor is stopped.
The parameters written using these words are not saved in non-volatile memory. Thus, if the
equipment is turned off and back on, these parameters will return to their original value.
The data is transmitted as an integer value, without the indication of the decimal places.
To obtain the network address (Net Id) of the parameters, refer to Appendix A.
6.2 ACYCLIC DATA
In addition to the cyclic data, the interface also provides acyclic data via
explicit messaging
. Using this type of
communication, you can access any equipment parameter. Access to this type of data is commonly done using
instructions for reading or writing data, which should indicate the class, instance, and attribute to the desired
parameter. The Manufacturer Specific Class (A2h) describes how to address the parameters for SSW900 soft-starter.
6.3 EDS FILE
Each device on an EtherNet/IP network has an EDS configuration file, which contains information about the device
functions on the network. This file is used by a master or configuration software to program devices present at
EtherNet/IP network.
The EDS file is available from WEG website (http://www.weg.net). It is important to note if the EDS configuration file
is compatible with the firmware version of the SSW900 soft-starter.
6.4 MODBUS TCP CONNECTIONS
The accessory for EtherNet/IP also provides up to 2 Modbus TCP connections. These connections can be used for
parameterization.
6.5 SUPPORTED OBJECT CLASSES
Any EtherNet/IP equipment is modeled as a set of objects. The objects are responsible for defining the function that
each device will have. The following sections present detailed information about these object classes.
SSW900 | 24