Cortalk RMU5 Generic - GPS and Satellite Communication Registers

MOBILTEX® DATA LTD.
TITLE:
RMU5 Generic Installation and Configuration Guide
Calgary, Alberta
DOCUMENT NO.:
RMU5-MAN-001
SHEET:
66 of 69
REV:
1.10
GPS Registers (read-only)
40701: gpsModulePresent, nonzero=yes
40702: acSignalLock, nonzero=yes
40703: interruptMode, 0=on, 1=off, 2=cycling
40704: rectifierStatus, 0=off, 1=on
40705-40708: latitude, four word double precision floating point value,
least significant word in first register. For fixed point mode, two word
fixed point signed integer with most significant word first. Divide value
by 1E7 to obtain final value.
40709-40712: longitude, four word double precision floating point
value, least significant word in first register. For fixed point mode, two
word fixed point signed integer with most significant word first. Divide
value by 1E7 to obtain final value.
40713-40716: altitude, four word double precision floating point value,
least significant word in first register. For fixed point mode, two word
fixed point signed integer with most significant word first. Divide value
by 100 to obtain final value.
40717: Year, 4 digit year
40718: Month, 1-12
40719: Day, 1-31
40720: Day Of Week, 0-6
40721: Hour, 0-23
40722: Minute, 0-59
40723: Second, 0-59
40724: Milliseconds, 0-999
40725: positionLock, nonzero=yes
40726: utcTimeLock, nonzero=yes
40727: satellitesInSolution, integer count of satellites
40728: satellitesTracked, integer count of satellites
32 channels, N=0 to 31:
40729+(N*6): prn, system code
40730+(N*6): snr, signal to noise ratio
40731+(N*6): elevation, two word single precision floating point value,
least significant word in first register. For fixed point mode, two word
fixed point value with most significant word first. Divide value by 100
to obtain final value.
40733+(N*6): azimuth, two word single precision floating point value,
least significant word in first register. For fixed point mode, two word
fixed point value with most significant word first. Divide value by 100
to obtain final value.
40921: tcmCodeVersion, the RMU5 GPS driver's version number times
100 (“5.34” = 534)
***Important*** The GPS registers must be read as a block starting
with the first register in the block. Reading the first register in the block
latches the data into a temporary structure to ensure data does not
change between successive reads of the data elements.
Table 10 Default RMU5 I/O Point Modbus Addresses