Rockwell-automation 1560E SMC Flex Smart Motor Controller Uživatelský manuál stáhnout pdf (Strana 117)

Communications 8-9

1560E-UM050B-EN-P - June 2013

Reference/Feedback The SMC-Flex does not offer the analog Reference feature. The analog

Feedback feature is supported and will provide Parameter 1, Current in

Phase A, automatically as the feedback word.

Parameter Information A complete listing of the SMC-Flex parameters is located in Appendix B.

The parameter values stored and produced by the SMC-Flex through

communication are unscaled numbers. When reading or writing values

from a PLC image table, it is important to apply the proper scaling factor,

which is based on the number of decimal places.

Read Example

Parameter 11; Power Factor — The stored value is 85. Since this value

has two decimal places, the value should be divided by 100. The correctly

read value is 0.85.

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 RSNetworxÔ. When

receiving or sending information from a PLC each text description has a

numerical equivalent. Table 8.I 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 8.I

Text Descriptor Numerical Equivalent

Disabled 0

Class 10 1

Class 15 2

Class 20 3

Class 30 4

Scale Factors for PLC

Communication

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 197 198

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Rockwell-automation 1560E SMC Flex Smart Motor Controller Uživatelský manuál Strana 117