Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) - Manual (Page 120)

110 Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Chapter 8 Communication
Write Example
Parameter 46; Motor FLC — The value which is to be written to the SMC is
75 A. Since this value has one decimal place, the value should be multiplied by 10.
The correctly written value is 750.
Display Text Unit Equivalents Some parameters have text descriptions when viewed from a HIM or through a
communication software program such as RSNetworx™. When receiving or
sending information from a PLC each text description has a numerical
equivalent.
Table 17 has an example of Parameter 44, Overload Class, and the
appropriate relationship between the text descriptor and the equivalent value.
This relationship is identical for other similar parameters located in
Appendix B .
Table 17 - Display Text Unit Equivalents
Configuring DataLinks DataLinks are supported in the SMC Flex. A DataLink is a mechanism used by
most drives to transfer data to and from the controller without using an Explicit
Message. The SMC Flex supports 16-bit DataLinks, therefore the device can be
configured to return up to four additional pieces of information without the
need for an explicit message.
Rules for Using DataLinks
• Each set of DataLink parameters in an SMC Flex can be used by only one
adapter. If more than one adapter is connected, multiple adapters must not
try to use the same DataLink.
• Parameter settings in the SMC determine the data passed through the
DataLink mechanism.
• When you use a DataLink to change a value, the value is not written to the
Non-Volatile Storage (NVS). The value is stored in volatile memory and
lost when the drive loses power.
Text Descriptor Numerical Equivalent
Disabled 0
Class10 1
Class 15 2
Class 20 3
Class 30 4