Manual

Operating Characteristics 3-39
3.8 Material Movement
Material movement on the GES-1993 consists of three board holding areas: 1) The
pre-processing area; 2) the post-processing area; and 3) the dispensing area. In
order for processing to begin, a board must arrive from the upstream machine on the
pre-processing area. The GES-1993 then takes boards pre-processing area, sends
them to the dispensing area, processes them and then places them in the post-
processing area. Before a new lot can be started, these boards must be removed from
the dispensing area. The following diagrams depict the state transitions for the input
and output ports on the GES-1993. Any state transition which occurs for the pre-
processing area, PreDispense event will be sent to the Host if enabled. Any state
transition which occurs for the post-processing area will trigger the PostDispense
collection event.
GWGEM does not provide any support in this area. FmNT provides GEM support
in this area ([RefGWGEMUser] p 141 ‘Material Movement’.
3.8.1 Related Variables
The following table lists the variables (SV's, EC's, or DVVALS) which are relevant
to material movement. For a more complete description of these variables, see
"Appendix A -- Data Dictionary Variables".
3.8.2 Related Collection Events
Many collection events relate directly to material movement or imply that material
movement has taken place. For a more complete listing of these collection events,
please see "Appendix B -- Collection Events".
3.9 Equipment Terminal Services
The GES-1993 supports exchange of free text messages with the Host (SECS Stream
10). This Equipment accepts the following messages from the Host, and responds
accordingly if the W-Bit is set to 1:
S10F3 /* Single Line Data */
S10F5 /* Multi-Line Data */
S10F9 /* Broadcast */