IEC 61850/
Function block
name
ANSI Function description Transformer  
     
RET650 (A01)
2W/1CB
RET650 (A05)
3W/1CB
RET650 (A07)
OLTC
 
GUPPDUP 37 Directional underpower protection 1 1 2
 
GOPPDOP 32 Directional overpower protection 1 1 2
 
DNSPTOC 46 Negative sequence based overcurrent function 1 2  
 
Voltage protection  
 
UV2PTUV 27 Two step undervoltage protection 1 1 2
 
OV2PTOV 59 Two step overvoltage protection 1 1 2
 
ROV2PTOV 59N Two step residual overvoltage protection 1 1 2
 
OEXPVPH 24 Overexcitation protection 1  
 
Frequency protection  
 
SAPTUF 81 Underfrequency function 4 4 4
 
SAPTOF 81 Overfrequency function 4 4 4
 
SAPFRC 81 Rate-of-change frequency protection 2 2 4
 
2.3  Control and monitoring functions
IEC 61850/Function
block name
ANSI Function description Transformer  
     
RET650 (A01)
2W/1CB
RET650 (A05)
3W/1CB
RET650 (A07)
OLTC
 
Control    
QCBAY   Bay control 1 1 1
 
LOCREM   Handling of LR-switch positions 1 1 1
 
LOCREMCTRL   LHMI control of Permitted Source To Operate (PSTO) 1 1 1
 
TR8ATCC 90 Automatic voltage control for tap changer, parallel control 1 1 2
 
TCMYLTC 84 Tap changer control and supervision, 6 binary inputs 1 1 2
 
SLGGIO   Logic Rotating Switch for function selection and LHMI
presentation
15 15 15
 
VSGGIO   Selector mini switch extension 20 20 20
 
DPGGIO   IEC 61850 generic communication I/O functions double
point
16 16 16
 
SPC8GGIO   Single point generic control 8 signals 5 5 5
 
AUTOBITS   AutomationBits, command function for DNP3.0 3 3 3
 
I103CMD   Function commands for IEC60870-5-103 1 1 1
 
I103IEDCMD   IED commands for IEC60870-5-103 1 1 1
 
Table continues on next page
Section 2 1MRK 504 126-UEN -
Available functions
14
Commissioning Manual