Epson RC90 Manual page 50

2. Installation
38
17-b <Expert Mode> will appear when the applicomIO Console application is
used in the "Expert Mode".
To configure details of "Change Of State" and "Cyclic", click <Expert
Mode> and display the [Expert Mode] dialog box.
NOTE

Never disable [Ack]. When the [Ack] checkbox is unchecked, a
failed connection is not regarded as an error.
17-c When the system cannot identify the device you want to use (its EDS file
is not registered), the following dialog box will appear.
In this case, obtain the EDS file from the device manufacturer and
register it by following the step 7. After that, follow the step 10.
RC700 / RC90 Option Fieldbus I/O Rev.14