IAI America XSEL-S User Manual
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[3] Panel Unit: PU-1 (Option)
This is a display device consists of four digits of seven-segment displays and LED lamps.
The status of controller, such as error codes, can be checked if connected to XSEL controller.
Also, if connected to an extension I/O unit, the condition of each I/O unit whether it is in normal
or error condition.
[Refer to Chapter 7]
Panel Window