Rockwell Automation 2711C-F2M, Быстрый старт

Страница: 20 / 110

20 Publication 2711C-QS001F-EN-P - November 2010
Chapter 1 Review Sample Application
Application Tags
The sample application uses read and write tags to define how objects interact with addresses in the
MicroLogix 1100 controller. The tags read or write data to a bit or integer file. Objects that do not read or
write to a controller address such as screen buttons or headings do not require a tag.
The same tags are used for DF1 or Ethernet communication.
This object Uses this tag To
Motor_Start Start the motor by writing the value 1 to the Boolean tag.
Motor_Stop Stop the motor by writing the value 0 to the Boolean tag.
Motor_AutoManual Set the motor to auto mode or manual mode by writing the
value 0 or 1 to the Boolean tag.
Read the tag value to determine the auto or manual mode of the
motor.
Motor_Status_Ind Read the tag value to determine the running or stopped status
of the motor.
Change_Speed Write the value of the entered motor speed, 0 to 1000 rpm, to
an unsigned integer address.
Motor_Speed Read the current value of the motor speed. The bar graph
displays the speed in a graphic format. The numeric display
displays the value in a numeric format.
This tag is also used to trigger an alarm if the motor speed
reaches 850 or 900 rpm.