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CROB functions in serial DNP modules

Article Number: 587 | Rating: 5/5 from 1 votes | Last Updated: Fri, Oct 2, 2015 at 10:36 PM

Example of using a conditional CROB to control BO 3 in slave 2 to using "Latch on" and Latch off" commands.

Node address (of the slave) is 2.
Object 12
Variation 1
Function 5 (Direct Operate)
Device Address (point index) in this slave is 3
Point Count is 1
DNP DB address unused, we're using the IED (master) DB
IED DB address maps to DNP.Data.IED_BO[0].0 (a value of 1 would map to DNP.Data.IED_BO[0].1)
Poll Interval = 0, no delay.

START

#Flags/      Node   Data      Data  Cmd  Device Point  DNP DB  IED DB     Poll
#Enable   Address Object Variation Func Address Count Address Address Interval
     30         2     12         1    5       3     1      -1       0       0
END

Setting DNP.Data.IED_BO[0] causes this to be transmitted from the MVI56-DNP:

embedded image CROB_LatchOn

Clearing DNP.Data.IED_BO[0] causes this to be transmitted from the MVI56-DNP:

embedded image CROB_LatchOff

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