Editing GPSS (section)

==== Facilities ====
{| class="wikitable"
!Prefix
!Meaning
|-
|Fj
|The status of the specified facility in the block diagram. This value is zero if the facility is available; otherwise, it is one. This quantity may be modified by SEIZE, RELEASE, PREEMPT, and RETURN blocks. Example: F20 for the status of facility 20.
|-
|FRj
|Utilization of facility j in parts per thousand, i.e., if the utilization was .88 the value of FRj would be 880.
|-
|FCj
|Number of entries for facility j.
|-
|FTj
|Average time each transaction used facility j (truncated).
|}