Delta MMC120 User Manual download pdf (Page 52)

Command Info: Mode MODE word

Accel Acceleration

Decel Deceleration

Speed Requested Speed

Command Value Requested position or command value

Command Any valid ASCII command

Link Info: Link Type Condition that triggers execution of next step

Link Value Parameter associated with Link Type

Link Next Number of next Step in sequence

Storing Steps

Steps are stored in the motion controller’s memory. This step table can be saved in the

motion controller’s FLASH using the Update FLASH command. However, in some

applications this information should be stored in the Programmable Controller so that it

can be downloaded to the motion controller on initialization. Refer to the Event Step

Transfer for details on storing the steps.

Changing Event Steps

Refer to Editing the Event Step Table for details on using the Event Step editor.

Basic Event Step Flow

After a valid event step sequence is loaded into the motion controller, event control can

be used. This section describes the basic flow:

To start a sequence of events, do the following:

• Issue a Start Event command to trigger an event from the monitor program or

Programmable Controller.

A sequence of events will stop when one of the following occurs:

• A Quit Events command has been issued from the monitor program or Programmable

Controller.

• A step is executed which has a Link Type of 0.

• A Halt or Disable Drive Output command will stop the event sequence as well.

• Another Start Event command will stop the current sequence and start the new one.

The following additional details should also be kept in mind:

• The Mode, Accel, Decel, Speed and/or Command Value fields need not be filled out

if the command does not use them.

• The command field can be left blank in a step if only the link type is being used. You

can chain steps together to make a sequence wait for multiple conditions to all be

true.

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Delta MMC120 User Manual Page 52