CiDRA Passive Sonar Transmitters - Manual (Page 20)

3.2 Modbus Holding Registers
Table 5 Modbus Holding Registers
Address Size Type Value Description Values
1 1 Char Password Input Password entry, when passwords are configured. 0 – 65535.
4 1 Char Write Control
Controls ability to write and commit changes to
transmitter configuration.
Write 0x55AA to enable write
access, write 0xEDF1 to commit
changes.
10 1 Char Set Password 0 Sets Password 0. 0 – 65535.
11 1 Char Set Password 1 Sets Password 1. 0 – 65535.
12 1 Char Set Password 2 Sets Password 2. 0 – 65535.
20 1 Char Reset Totalizers Resets all totalizers to zero. Any Write.
21 1 Char Clear Alarm Clear any existing alarms. Any Write.
22 1 Char Reset Data History Clears the data history memory. Any Write.
1001 1 Char
PIPE_DIAM_SELEC
T
Selects method used to set pipe dimensions.
0 = ID/Wall (Uses
DISP_PIPE_DIAM and
WALL_THICKNESS), 2 =
Size/Sched (Uses PIPE_SS_SIZE
and PIPE_SS_SCHED), 3 =
OD/Wall (Uses PIPE_OD and
WALL_THICKNESS).
1002 1 Char PIPE_DIAM_UNITS Selects units used for 'Pipe ID'. 0 = Inches, 1 = millimeters
1003 1 Char PIPE_OD_UNITS Selects units used for 'Pipe OD'. 0 = Inches, 1 = millimeters
1004 1 Char PIPE_SS_SIZE
Selects pipe size. Will only be applied if 'Size /
Schedule' is selected for 'Pipe Diameter Input Mode'. 0=2,1=2.5,3,3.5,5,6,8,10,12,14,16,
18,20,22,24,26,28,30,32,34,36
1005 1 Char PIPE_SS_SCHED
Selects pipe schedule. Will only be applied if 'Size /
Schedule' is selected for 'Pipe Diameter Input Mode'. 0=5S,1=10,10S,20,30,40,40S,60,8
0,80S,STD,XS
1006 1 Char
SOS_PIPE_WALL_T
HICKUNITS
Selects units used for 'SOS Pipe Wall Thickness'. 0 = Inches, 1 = millimeters
1007 1 Char
SOS_PIPE_MODUL
US_SEL
Selects either a pre-defined modulus or the option to
enter a custom value. Select 'Custom' to enter a value in
'SOS Pipe Modulus'. 0 = 1.9305e8 kPa (SS), 1 =
2.0684e8 kPa (Steel), 2 =
3.4473e6 kPa (PVC), 3 = Custom
1008 1 Char
SOS_GAS_CONST
ANT_SEL Selects use of pre-defined SOS Gas Constant or a
custom value entered in 'SOS Gas Constant'.
0 = 287 Jkg/K (Air), 1 = Custom
20959-01 Rev 02 Page 3-5