Campbell Scientific TD Operating System Addendum for CR510, CR10X, and CR23X - Manual (Page 46)

Section 12. Program Control Instructions
12-2
TABLE 12-1. CR205/CR210/CR215 in PakBus Network
Stand Alone
Datalogger SendGetData P190 Wireless Sensor P193
General Description CR205 is programmed
as a stand alone
datalogger. Data are
stored in datalogger and
retrieved by computer
running Loggernet May be used as either a
wireless sensor interface
(data stored in “Master”
Logger) or to transfer
data to another logger
while still independently
storing data. “Master” datalogger
stores all data and sets
transmission schedule
for remote CR205 w/
sensors.
PRO
• Data are stored in
Datalogger, loggernet
will automatically
retry if
communication fails.
• No special
datalogger
programming
required for data
transfer
• Most flexible
datalogger to
datalogger data
transfer.
• Can be set to
automatically retry
sending data.
• Potential for lowest
power consumption
by remote CR205.
• Data are collected
only from “Master”
datalogger.
• Automatic retries if
adequate time is
allocated
CON/limitations
• Separate data files
for each logger.
• Both the “Remote
Sensor” CR205 and
the Master Datalogger
need to be
programmed to handle
the data.
• Data collection
should be scheduled to
avoid conflicts with
datalogger to
datalogger
communication.
• Both the “Remote
Sensor” CR205 and
the Master Datalogger
need to be
programmed to
handle the data.
• Without storing
data in the sensor,
data are lost if
transmission fails.
• Master radio must
be on continuously.
• For simplicity, all
wireless sensor
CR205s should have
the same sensors. (or
at least no more than
4 different sensor
configurations)
• Data collection
should be scheduled
to avoid conflicts with
Sensor to Master
communication.
PakBus Instructions
used in Datalogger
Programming
Normal programming to
measure sensors,
process, and store data. SetValue, GetValue, or
P190 in datalogger
initiating
communication.
Programming to deal
with any sent data or
codes in the other
datalogger. Wireless Network
Master (P193) in master
datalogger.
TimeUntilTransmit (or
P194) and SendGetData
(or P196) in remote.