Campbell RF410 Manual de Instruções descarregar pdf (Página 47)

PakBus Networking Guide

Example:

9: PakBus - Wireless Network Master (P193)

1: 10 Number of Remotes

2: 1 First Remote Address ; 1st CR205 "Datalogger Address"

3: 0 Time Into Transmit Interval (sec)

4: 60 Transmit Interval (sec, 0 = use execution interval)

5: 3 Transmit Delay Between Remotes (sec)

6: 4 Swath to Receive ; Number of data values each CR205

7: 11 First Loc for Data Received [ DataRcvd_1 ]

8: 5 Swath to Send

9: 21 First Loc to Send [ HostBattr_1 ]

10: 3 Result Code Loc [ Response ] ; RCV’d, -1 = successful

According to the Number of Remotes parameter, you must assign Input

Location groups to accommodate Data Received and Loc to Send. For

example, with 10 remotes and Swath to Send = 5 you would use Input Loc

Editor to assign 50 Input Locations with appropriate labels for data to be sent.

With Swath to Receive = 4 you would assign 40 Input Locations for data to be

received.

The remote will keep its clock synchronized by retrieving the host’s clock and

setting its own with each communication with the datalogger during their time

slot.

Once set up, P193 does not initiate any communications but responds to any

port (CSDC 7, CSDC 8, or M.E.) that receives a SendGetData message from a

CR200 Series or non-CRBasic datalogger’s P196 instruction.

Result Codes

When the datalogger receives a message from one of its remotes, the

corresponding Result Code Location is set to -1. When Instruction 193 is

executed, the Result Code Location is incremented by 1. Therefore, if

communication is successful, the Result Code Location will be 0 after the

execution of Instruction 193. If data transfer is unsuccessful, the Result Code

Location for the remote that failed will be incremented, and will continue to

increment with each failed attempt.

Multiple Instruction 193s can be used in a program to configure up to four

different groups of dataloggers/wireless sensors.

6.1.4 P194 – Time Until Transmit

Purpose:

Used in conjunction with a conditional statement to determine how many

seconds remain until the remote datalogger’s Wireless Remote Instruction

(P196) should be executed to initiate the next scheduled communications with a

master datalogger.

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Campbell RF410 Manual de Instruções Página 47