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Output channel Variable Description
number
1 Timing DAC Variable-height step output used to determine the running time
2
3
4
5
6
7
8
9
I0
II
12
13
14
15
16
WFFBS
AJS
CIWS
RCVVS
BLFBS
of each subroutine
Sensed main combustor fuel flow (WF)
Sensed exhaust nozzle area (AJ)
Sensed fan inlet variable vane angle (CIVV)
Sensed rear compressor variable vane angle (RCVV)
Sensed compressor bleed (BL) (not used)
POS
PT2
TT2
TT25
Nl
N2
PT4
PT6
FTIT
PLA
Ambient (static) pressure (PO)
Fan inlet (total) pressure
Fan inlet temperature
Compressor inlet temperature
Sensed fan speed
Sensed compressor speed
Sensed combustor pressure
Sensed exhaust nozzle pressure
Sensed fan turbine inlet temperature
Power lever angle
14
TABLE III.- INTEL 86/30 BOARD HARDWARE CONFIGURATION
86/30 Jumper Description
connections
7_II 2 wait states on EPROM access
13-14
38-39
108-109
111-112
118-119
144-145
151-152
158-147
175-176
178-179
184-185
190-194
191-195
205-207
208-209
210-211
215-220
216-221
217-222
219-224
225
226
227
230-231
232-233
240-241
234-235
236-237
33-34
2 wait states on I/O access
Timeout enabled
2716 select
2716 select
128K total ram on board
Ground NMI
Multibus interrupt 5/ to 8259 IR5
Timer 0 interrupt to 8259 1R2
1.23 MHz clock to CTRO - out
1.23 MHz clock to CTR2
153.6 KHZ clack to CTRI
8753 out 2 to 8251TXC
8753 out 2 to 8251RXC
BCLK to Multibus
CCLK to Multibus
BPRO to Multibus - out
Out }
Out
Out
Out
ft. C.
n. C.
n. C.
Out
In
Out
Out
Out
Out
Megabyte 0 (lowest) selected
l ff board address O-IFFFFH
(0 lowest address)
128 K, OIFFFFH upper address
All RAM available to bus, 128 K
Nonbus vectored interrupts
123-124-125
189-193
202-203
213-212
184-175
133-165
134-141
155-166
Out 2 K x 8 EPROM
DTR to DSR
ANYRQUEST line
CBEG line to ground
153.6 KHz clk to CTRO
Timeout interrupt to 8259 IRO
Timeout l int. to 8259 IR7 (for MINDS)
MINT to 8259 IR6
TABLE IV. - D/A BOARD PIN CONNECTIONS
Signal DAC Board Channel Pin number Pin number Comments
number high low
Timing DAC I
WFFBS
AJS
CIWS
RCWS
BLFBS
POS
PT2
TT2
TT25
SNFSEN
SNCSEN
PT4
PT6
FTIT
PLA
17
19
21
23
25
27
29
31
17
19
21
23
25
27
29
31
18
2O
22
24
26
28
30
32
18
20
22
24
26
28
30
32
Not used
NI sensed
N2 sensed
15
TABLE V. - ROUTINES AND ASSOCIATED COMMON BLOCKS
Common
XANDZ
FTICFC
'AETOUT
MVCSHT
AMBCND
ACTUAT EVOLVE
X
X
FTSAV x
MATRIX X X
BASEV X X
FILVAR X
EXPS X X
JLCMN X X
RAMREC X
CONTRO_ X
EMODEL
Routine
INLET MSET
X
X
X
X X
X X
X
X X
X X
X
MTRXST RPFAND RPLIMD
X
X X X
EXEC
X
TABLE VI. - CONTENTS OF COMMON BLOCKS
Common
XANDZ
FTICFC
ACTOUT
MVCSHT
AMBCND
FTSAV
MATRIX
BASEV
FILVAR
EXPS
3LCMN
RAMREC
CONTROL
Contents
Engine states, engine outputs, sensed engine outputs
Fan turbine inlet temperature factors used to model FTIT sensor dynamics
Actuator outputs, sensed actuator outputs
Integration time step
Sensed ambient conditions
Slow and fast lag values used to model FTIT sensor dynamics
Matrices F, H, D, and F-IG; and flag, DFLAG
Base points for control inputs, engine states, and engine outputs
Intermediate variables used in system evolution routine
Exponentials for all of the actuator and sensor dynamics
General variables that do not fit in another common
Variables used for ram recovery effect of the inlet
The control inputs to the actuators
16
TABLE VII. - SOFTWARE SWITCHES FOR MODE CHANGES
Software Description
switch
RLOOP
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