Epson RC90 Manual page 118

2. Installation
106
If it cannot communicate with the slave device, the following dialog box appears.
Connections Parameters for the Fieldbus master board and information of the slave
device may not be matched.
Connections Parameters for the Fieldbus master board can be checked by the
following procedure.
First, select the slave device which is registered to the Fieldbus master board.
Then, click the left mouse button and select <Properties>.
RC700 / RC90 Option Fieldbus I/O Rev.14