Campbell NL115, Instruction Manual

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NL115 Ethernet and CompactFlash
®
Module
PROGRAM
' CR1000
' IP_Callback.cr1
' LoggerNet server Pak Bus Address assumed = 4094
' PC IP address assumed = 192.168.7.231
' LoggerNet IPPort "IP Port Used for Call-Back" = 6785
' LoggerNet IPPort "Call-Back Enabled" is checked
' LoggerNet CR1000 "Call-Back Enabled" is checked
' LoggerNet PakBusPort "PakBus Port Always Open" is checked
' IP Call-back using auto-discover (-1) neighbor in SendVariables
Public PanelTemperature, BatteryVoltage, Result1, dummy1
Dim Socket as LONG
DataTable (CLBK1,1,1000)
DataInterval
(0,0,Sec,10)
Sample (1,PanelTemperature,FP2)
Sample (1,BatteryVoltage,FP2)
EndTable
BeginProg
Scan
(5,Sec,6,0)
PanelTemp
(PanelTemperature,250)
Battery (BatteryVoltage)
If not Route(4094) then Socket = TCPOpen ("192.168.7.231",6785,0)
SendVariables
(Result1,Socket,-1,4094,0000,100,"Public","Callback",dummy1,1)
CallTable
CLBK1
NextScan
EndProg
7.1.1.2 Datalogger-to-Datalogger Communication
Communications between dataloggers is possible over TCP/IP. In order to do
this, a socket must be opened between the two dataloggers. This is done using
the
TCPOpen() instruction. The socket opened by this instruction is then used
by the instructions performing datalogger-to-datalogger communications.
The example program below gets the battery voltage from a remote datalogger
and sends its panel temperature to the remote datalogger. The remote
datalogger is at IP address 192.168.7.125 and port 6785 is used for
communication between the dataloggers. The remote datalogger must have its
battery voltage stored in a public variable, BattVolt. It must also have a Public
variable declared, PTemp_Base. This will be used to store the panel
temperature of the base datalogger.
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