Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Instrukcja Użytkownika Pobierz pdf (Strona 149)

ControlLogix w/1769-ADN DeviceNet Example Ladder Program 8-19

Figure 8.21 Example ControlLogix Ladder Logic CH3 Subroutine

1769-SM2 Channel 3 Subroutine

The following rungs display some of the Logic Status bits from the drive. Refer to Appendix D in the 1769-SM2 user manual

for additional information about the Logic Status word.

SM2_Input_Data[7].0 CH3_Ready

SM2_Input_Data[7].1 CH3_Active

SM2_Input_Data[7].3 CH3_Forward

SM2_Input_Data[7].7 CH3_Fault

SM2_Input_Data[7].8 CH3_At_Speed

This rung displays the Feedback from the drive. An integer represents the xxx.x Hz format (decimal is implied) used by the

drive, so a displayed value of "300" equates to 30.0 Hz.

Move

Source SM2_Input_Data[8]

300

Dest CH3_Feedback

300

MOV

The following rungs display some of the Logic Command bits sent to the drive. Refer to Appendix D in the 1769-SM2 user

manual for additional information about the Logic Command word.

CH3_Stop SM2_Output_Data[5].0

This rung unlatches the contact that turns on the Start command when the drive is not communicating with the 1769-SM2.

This prevents the drive from immediately starting when communications are restored. If an immediate start is desired for an

application, this rung could be deleted.

CH3_Valid_Data

<SM2_Input_Data[2].10>

CH3_Start

CH3_Start SM2_Output_Data[5].1

CH3_Jog SM2_Output_Data[5].2

CH3_Clear_Fault SM2_Output_Data[5].3

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 203 204

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Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Instrukcja Użytkownika Strona 149