Owner's manual

Table Of Contents
Equipment-to-Host Messages 3-1
3. Operating Characteristics
This section describes the operating characteristics of the Equipment.
3.1 Communications States
The Equipment represents the current state of its SECS link using a Communication Finite State Machine
diagram. The purpose is to make clear how this link is initiated and terminated.
The Communications State is displayed in the GEM status bar and the SECS/GEM tab of the FmNT
Run Window.
Initially, the INITCOMMSTATE variable is set to place the Equipment into the Disabled state at power-
up. Once FmNT has completed initialization, FmNT will change the Communications State to the default
communication state selected by the user. The loss of communications during Running or Pausing will
not affect the ability of FmNT to complete operations in the Process Program. However, automatic
reestablishment of the Process State may require manual intervention if FmNT has changed state during
the loss of communications period.