Specifications
HYDROLOGICAL SERVICES
DL3 100-033 IMP
Issue 2: 15/11/2005
4.1.13.3 The Rainfall Message (R)
The following data format represents the standard rainfall message as generated under alarm
conditions, message schedule, or by command request.
ZCZC HYDR MELB 0012345 HS0001 09:23 05/01/92 0.24 0.09 1.05 0584.4 13.6 1.00
0.80/02:30 2.00/12:00 000 023 105 469 NNNN<crlf >
Note: Message terminates with <crlf>, carriage return, line feed marker.
Par. Parameter Definition Sample
SoM Start of Message marker, fixed field. ZCZC
MsgID Message Identifier for a rainfall message, fixed field. HYDR
Site Site Name, variable length, ( maximum of 16 characters, user
programmable).
MELB
RChID Rainfall Channel Identification number or Observational Station Number,
(7 digits, user programmable).
0012345
LogID Logger Identification number as hard coded by manufacturer, (6 digits). HS0001
Time Time, (Hour:Minute format). [can be local or UTC] 09:23
Date Date, (Month/Day/Year format). [can be local or UTC] 05/01/92
R9 Accumulated rainfall since last 0900, (inch). 0.24
R10 Rainfall total during last 10 minutes, (inch). 0.09
R24 24 hour rainfall total prior to last 0900, i.e. yesterday’s rainfall total, (inch.
0900 to 0900)
1.05
R Total accumulated rainfall from last reset, (inch). 23.00
BV Battery Voltage, (volts). 13.6 v
RAl1 Rainfall Alarm1, rainfall since 0900 greater than user defined value, (mm,
user programmable).
1.00 - If R9 > 1.00
then
Alarm1
RAl2 Rainfall Alarm2, rainfall amount per time interval. (inch/Hr:Min, user
programmable).
0.80/02:30 - If rainfall >
0.80
over the last 2 hours
& 30 minutes then Alarm2.
RAl3 Rainfall Alarm3, rainfall amount per time interval. (inch/Hr:min, user
programmable)
2.00/12:00 - If rainfall >
2.00
over the last 12 hours
then Alarm3.
RAlS Rainfall Alarm Status, indicator group to identify alarm condition. An
individual alarm is represented by its position within the indicator group,
(three,two,one = 000).
000 = no alarms active.
001 = rainfall Alarm1active.
011 = Alarm1 & Alarm2
active.
MN Message Number incremental messagecounter, (roll over at 999 then 001). 023
CC Character Count, total number of characters in the data line excluding <
crlf >, SoM and EoM.
105
CS Check Sum, last three digits of the sum of all ASCII characters in the data
line excluding < crlf >, SoM and EoM.
469
EoM End of Message marker, fixed field. NNNN