Honeywell MK VI, MK VIII 6.2.49 Body Pitch Rate (326), 6.2.50 Body Roll Rate (327), 6.2.51 Minimum Descent Altitude (170) IOC Scaling, 6.2.52 Normal Angle of Attack (236)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
Proprietary notice on title page applies
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-150 REV: SHEET 290
22 Timed Audio Inhibit (momentary)
23 Reserved for EGPWS Test command Bit
24 Steep Approach activated (alternate action)
25-28 Terrain Display Range (as specified in the table below)
29 Not Used
BITS 25 to 28 = Terrain Display Range (0.5 to 2000 NM) format as follows:
DISPLAY RANGE BIT ASSIGNMENTS
Bits 28-25 DEFINITION Bits 28-25 DEFINITION
0000 0.5 NM 1000 150 NM
0001 1.0 NM 1001 200 NM
0010 2.5 NM 1010 300 NM
0011 5.0 NM 1011 500 NM
0100 10 NM 1100 1000 NM
0101 25 NM 1101 2000 NM
0110 50 NM 1110 600 NM
0111 100 NM 1111 1200 NM
6.2.49 Body Pitch Rate (326)
Body Pitch Rate Source: AHRS / IOC
LABEL (Octal) 326 Units: Deg/Sec Max. Range: +/-128 Degrees/Sec Approx. LSB: 0.0156 Deg/Sec
Data Bits: 16 to 28 = 13 + = Nose Up Sign Bit: 29 Pad Bits: 11 to 15
Transmit Interval (mSec): 10 to 20 Data Type: 2’s Complement Binary SDI Bits: 9, 10
6.2.50 Body Roll Rate (327)
Body Roll Rate Source: AHRS / IOC
LABEL (Octal) 327 Units: Deg/Sec Max. Range: +/-128 Degrees/Sec Approx. LSB: 0.0156 Deg/Sec
Data Bits: 16 to 28 = 13 + = Right Wing Down Sign Bit: 29 Pad Bits: 11 to 15
Transmit Interval (mSec): 10 to 20 Data Type: 2’s Complement Binary SDI Bits: 9, 10
6.2.51 Minimum Descent Altitude (170) – IOC Scaling
Minimum Descent Altitude Source: IOC
LABEL (Octal) 170 Units: Feet Max. Range: ± 65,536 Feet 1Approx. LSB: 1 Foot
Data Bits: 13 to 28 = 16 + = Above Sea Level (ASL) Sign Bit: 29 Pad Bits: 9 to 12
Transmit Interval (mSec): 200 Data Type: 2’s Complement Binary SDI Bits: N/A 2
Note 1: Some IOC configurations may only provide positive ranges (0 to 65536 feet), however the EGPWS supports both
positive and negative ranges (±65,536 feet) for all configurations.
Note 2: This label may be provided in a configuration with a single DH input or in conjunction with a selected MDA
input. For those configurations which provide DH and MDA on separate labels format 3 applies (Format 1 is 0/0
SDI, Format 2 is Left SDI used and Format 3 is no SDI.)
6.2.52 Normal Angle of Attack (236)
Normal Angle of Attack Source: IOC
LABEL (Octal) 236 Units: N/A Max. Range: 0 to 1 Approx. LSB: 0.000031
Data Bits: 14 to 28 = 15 + = N/A Sign Bit: N/A Pad Bits: 11 to 13, 29
Transmit Interval (mSec): 80 Data Type: 2’s Complement Binary SDI Bits: 9, 10