User Manual
Appendix E
GFK-2849A
Oct 2019
Protocol Implementation extra Information for Testing (PIXIT)
138
Description
Value / Clarification
c)
†.WRITERslt (Result of operation –
Success or failure with
error code: Read)
d)
†.ReadVal (Actual value of parameter from Device:
Read)
These PPVs can be used to write values to the device.
Below is an example of ActSG attributes with FC=SP, used for
“write”:
IEC 61850 Configurator
The IEC 61850 variable as seen in the Configurator dialogue:
Dev.IEDDevice.LLN0/SGCB/ActSG[SP]
PLC Protocol Variables(set)
The PPV set that gets created automatically in the RX3i
controller project for the above IEC 61850 variable:
a)
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITEVal
b)
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITECmd
c)
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITERslt
d)
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.ReadVal
WRITE Operation with PPV
If the user has to write a value to such a writable data attribute,
then the following steps needs to be execute in RX3i controller
logic:
1.
Step1: Write value to be written to device in the PPV
with extension (†.WRITEVal).
e.g.
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITEVal
2.
Step2: Provide a transition from “0” to “1” in the PPV
with extension (†.WRITECmd) to trigger the transfer
of written value to the IED
e.g.
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITECmd
3.
Step3: Check the PPV with extensio
n (†.WRITERslt) for
success (1).
e.g.
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.WRITERslt
[ WRITERslt returns code:
0: BUSY
1: DONE
2: ERROR ]
4.
Step4: check that the written value has been updated
in the PPV with extension (†.ReadVal)
e.g.
S8_Dev_IEDDevice.LLN0_SGCB.ActSG_SP.ReadVal
