Honeywell MK VI - Manual (Page 282)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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CONTROL WORD 2 BIT ASSIGNMENTS
Bit No. DEFINITION
11–22 Spares
23 Display Range Divide by 20
24 – 29 Display Range as specified in the table below
BITS 24 to 29 = Display Range (5 to 320NM, format as follows)
Bit 29 Bit 28 Bit 27 Bit 26 Bit 25 Bit 24 RANGE
0 0 0 0 0 0 320 NM
0 0 0 0 0 1 5 NM
0 0 0 0 1 0 10 NM
0 0 0 1 0 0 20 NM
0 0 1 0 0 0 40 NM
0 1 0 0 0 0 80 NM
1 0 0 0 0 0 160 NM
Note: The range bits are additive; e.g., if bits 24 and 26 = 1 then the range would be 25 NM.
6.2.21 Discrete Word (155 or 176) - MFD
DISCRETE WORD – MFD Source: MFD or IOC #1 & IOC #2
LABEL (Octal) 155 or 176 Units: N/A Max. Range: N/A Approx. LSB: N/A
Data Bits: Discrete word, see below + = N/A Sign Bit: N/A Pad Bits: 9, 10
Transmit Interval (mSec): 50 ms Data Type: Discrete SDI Bits: N/A
DAU WORD BIT ASSIGNMENTS
Bit No. DEFINITION
11 - 17 Not Used by EGPWC
18 - 24 Terrain Display Range as specified in the table below
25 - 29 Not Used by EGPWC
BITS 18 to 24 = Display Range (5 to 640 NM, Format as follows)
DISPLAY RANGE BIT ASSIGNMENTS
Bits 24-18 DEFINITION Bits 24-18 DEFINITION
All 7 bits zero: 640 NM Bit 21 set: 40 NM
Bit 18 set: 5 NM Bit 22 set: 80 NM
Bit 19 set: 10 NM Bit 23 set: 160 NM
Bit 20 set: 20 NM Bit 24 set: 320 NM
6.2.22 Hazard Range Output (077)
Hazard Range Output - Wx RADAR Source: Wx Radar
LABEL (Octal) 077 Units: N/A Max. Range: N/A Approx. LSB: N/A
Data Bits: Discrete word, see below + = N/A Sign Bit: N/A Pad Bits: 9, 10
Transmit Interval (mSec): 20 ms Data Type: Discrete (non-standard SSM, see below) SDI Bits: N/A
HAZARD RANGE OUTPUT BIT ASSIGNMENTS
Bit No. DEFINITION
11 Event Number LSB, Not Used by EGPWC
12 Event Number, Not Used by EGPWC
13 Event Number MSB, Not Used by EGPWC
14 Range (Start), 0.0625 NM, Not Used by EGPWC
15 Range (Start), 0.125 NM, Not Used by EGPWC