Owner's manual

Table Of Contents
1. Introduction
1.1 Overview
This manual describes the SECS/GEM interface (version 4.8.1 or higher) used with Fluidmove for
Windows NT (FmNT) version 4.8.2 or higher.
This document is a modification of the GW Associates GES-1993 SECS/GEM Interface document and
has been especially prepared to support FmNT. The content and structure of this document follows the
original GES-1993 document. User information and GEM interface with FmNT were added.
FmNT supports the GW Associates GEM subset of the SECS communication standard. Future references
to the SECS/GEM interface will use only the GEM identification to acknowledge the specific approach
used by FmNT.
The interface between FmNT and a Host computer is explained in detail. The interface conforms to the
GEM standard. The GEM standard defines a standard implementation of the SECS-II communication
interface for all semiconductor manufacturing equipment.
GW Associates (Software Model GEM-NT-100) is used to implement approximately 90% of SECS and
GEM features, with FmNT implementing the remaining equipment-specific features.
Equipment-to-Host Messages 1-1