OPC data types
Protocol informa-
tion element
Mandat-
ory/Optional
Value/ Value
range
Type
Name
EI, BL, SB, NT, IV
M
Quality
q
Directional protection activation information (ACD)
5.2.6.
ACD represents M_SP_NA_1, M_SP_TA_1, M_SP_TB_1, M_DP_NA_1, M_DP_TA_1,
M_DP_TB_1.
OPC data types
Protocol informa-
tion element
Mandat-
ory/Optional
Value/ Value
range
Type
Name
VT_BOOL
SPI
M
BOOLEAN
general
VT_I4
M
unknown
forward
backward
ENUMERATED
dirGeneral
VT_BOOL
SPI
O
BOOLEAN
phsA
VT_I4
O
unknown
forward
backward
ENUMERATED
dirPhsA
VT_BOOL
SPI
O
BOOLEAN
phsB
VT_I4
O
unknown
forward
backward
ENUMERATED
dirPhsB
VT_BOOL
SPI
O
BOOLEAN
phsC
VT_I4
O
unknown
forward
backward
ENUMERATED
dirPhsC
VT_BOOL
SPI
O
BOOLEAN
neut
VT_I4
O
unknown
forward
backward
ENUMERATED
dirNeut
EI, BL, SB, NT, IV
M
Quality
q
VT_DATE
CP24Time2a,
CP56Time2a
M
TimeStamp
t
VT_BSTR
O
Text
Description
d
58
1MRS755382
Station Automation COM600 3.4
IEC 60870-5-101 Slave (OPC) User's Manual
Summary of Contents for COM600 3.4
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