### Step 7: Enter Multiple Arm Mode

Once you have setup the computers, and are in a part program, the Operation | Enter Multiple Arm Mode menu option becomes selectable from the Arm1 (primary) computer. Select the Enter Multiple Arm Mode option.

PC-DMIS displays a check mark to the left of the Operation | Enter Multiple Arm Mode option in the menu. PC-DMIS also displays the Active Arms toolbar

When PC-DMIS enters multiple arm mode it attempts to establish a link between the multiple computer systems. This link coordinates the activities of all the arms.

Troubleshooting If PC-DMIS cannot establish the link among the computers after entering multiple arm mode, you will get an error message informing you of the arm that isn't responding. The following may cause this communication problem:

- PC-DMIS is not running on a computer

- An on-line part program is active on an Arm2 or higher computer

- The cable connections (or other network connections) between the computers are not functioning

- Settings entered in the Multiple Arm Setup dialog box are incorrect

Once you have a link established between the multiple computers, you can calibrate the relationship between the arms.

Note: Exiting the active part program also removes PC-DMIS from multiple arm mode.

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