Epson RC90 Manual page 154

2. Installation
19. The list of detected devices is displayed in the [Network detection] panel.
20. Select a device you want to scan.
21. Click <Insert in Configuration>.
22. The following dialog box appears.
23. Assign a number in the range from 1 to 127 in <Number: >.
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Uncheck the [Link Parameters] checkbox.
This number is "Device ID". It is required when creating a SPEL+ program.
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RC700 / RC90 Option Fieldbus I/O Rev.14