Campbell CR800 Especificações descarregar pdf (Página 281)

Section 13. PakBus Communication Instructions

13-3

Syntax

Routes ( Dest )

Remarks

This instruction stores four values for each known route into the Dest

parameter. The four values for each route are: ComPort used for

communication, neighbor PakBus address, destination PakBus address, and

expected response time (in milliseconds). The list of routes is terminated with

a -1. Dest must be an array dimensioned large enough to accommodate the

number of routes (4*routes), plus one for the termination character.

SendData (ComPort, RouterAddr, PakBusAddr, DataTable)

The SendData instruction is used to send the most recent record from a data

table to a remote PakBus device.

Syntax

SendData ( ComPort, RouterAddr, PakBusAddr, DataTable )

Remarks

This instruction can be used to send data to a PC running the LoggerNet server.

When received, LoggerNet will store the data in a file under a name that

follows its naming convention, as specified in the Setup window of the

software.

See the CRBasic Editor help for parameter details.

Note: By default, LoggerNet uses PakBus address 4094 and PC400 uses 4093.

DataTable The DataTable parameter is the name of the table from

which the last record should be sent.

SendGetVariables (ResultCode, ComPort, RouterAddr, PakBusAddr,

Security, TimeOut, SendVariable, SendSwath, GetVariable,

GetSwath)

The SendGetVariables instruction is used in a remote datalogger to send an

array of values to the host datalogger, and/or retrieve an array of data from the

host datalogger.

Syntax

SendGetVariables ( ResultCode, ComPort, RouterAddr, PakBusAddr, Security,

TimeOut, SendVariable, SendSwath, GetVariable, GetSwath )

Remarks

When the SendGetVariables instruction is used in a datalogger, data

transmission times are controlled by a host datalogger. Most often, this

instruction is preceded by the TimeUntilTransmit instruction to trigger the

execution of the SendGetVariables instruction. The program in the host

datalogger must contain the NetWork instruction, which sets the times that the

remote dataloggers should respond.

If security is enabled in the host datalogger, it must be unlocked to level 2 for

this instruction to be successful.

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