PowerLogic T300 - IEC 104 protocol: how to achieve MSP-to-MDP conversion?

[John_Archer1]

Hello guys, good day. I read the 104 protocol on the t300 rtu as single point and converted it to double point ABB rtu. It says it's being converted, but the wrong value is being sent

[TomBerry]

I see from the screen shot that the source coordinate is of type MSP and the destination coordinate has type MDP.  These coordinates tell the software what format to use in the protocol messages, but they don't translate the values.
MSP has values 0,1 = open/close MDP uses values 0,1,2,3 = intermediate/open/close/bad

What is needed is an intermediate variable with a formula.
There are built-in formulas to convert the value from SPS to DPS format or vice versa

For example:
T300_Slave_SP "Status as single bit"

    source IEC104_Meas 2:MSP

    destination formula T300_Slave_DP
T300_Slave_DP "Status as double bit"

   source formula SPS2DPS(T300_Slave_SP)

   destination IEC104_slave 161:MDP

See User Manual – Easergy Builder section 6

[John_Archer1]

Thanks for the reply
But I can't write this operation, how many pages can I read in the Usermanual?
Also, should I write the formula using your example?

[TomBerry]

The list of data point types supported by 104 are described in section 1.3.3 of the 104 User Manual.

The Mxxx point types are only used with the Status or Analog variables. The information travels in 'monitor direction' (from the controlled station to the controlling station). 

The Cxxx point types are only used with the Command or Setpoint variables. The information travels in 'control direction' (from the controlling station to the controlled station).

For example

A single bit information received from device 1 would be defined in the Status data table, and have a source coordinate like xxx.MSP

Double bit information sent to device 2 would be defined in the Command data table, with a destination coordinate like yyy.CDC

[Rajasekar_Chandrasekar]

@John_Archer1  Please refer to the below example how to read the MSP then MSP to MDP, 

I hope this will help solve your Problem.

BR

Rajasekar

[John_Archer1]

Thanks, I'll try it and let you know