1 - 13
Cygnus 2 Operating Manual
1.4.6 Logic Processing
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . If/Then statements
Logical Functions . . . . . . . . . . . . . . . . . . . . . And; Or; Not; Parentheses; ON
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 "If" conditions and 5 "Then"
results/actions per statement
# of Statements . . . . . . . . . . . . . . . . . . . . . . 100 If/Then
Selectable events. . . . . . . . . . . . . . . . . . . . . Deposition monitor events, states,
external inputs, relays, timers, and
counters.
Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . Statements evaluated in numerical
order at 10 Hz any time Cygnus 2 is
on.
Partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . None
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . All outputs transition to their normal
states as early as possible during
power-on initialization sequence.
1.4.7 Relays / Inputs
Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPST 2.5 A relays rated @ 30 V (dc)
or
30 V (ac) RMS or 42 V (peak)
maximum;
(8 standard, up to 16 optional with 2
additional I/O cards); D sub
connector; relays are normally open
in the power off state, but may be
programmed to normally open or
normally closed during operation.
Relay Ratings. . . . . . . . . . . . . . . . . . . . . . . . 100 VA inductive; 2.5 A maximum.
# of TTL Compatible Outputs . . . . . . . . . . . . 14 with optional I/O card. Internally
pulled up to 5 V (dc). May be pulled
up externally to
24 V (dc) through 2.4 k resistor.
minimum high level 0.5 mA load
@3.75 V
maximum low level 10 mA load @1.1
V
Inputs (TTL Compatible). . . . . . . . . . . . . . . . (14 standard, 14 additional optional)
To Next Page
Loading...
Need help?
General
