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Data objects for controllable status information
6.2.4.
Controllable single point (SPC)
6.2.4.1.
The command sequence for controlling points is specific to each relay. In the 2000 R
products, for example, SPC is implemented using a bit mask.
TRUE/FALSE values are sent with 1 and 0 values.
Underlying protocol converter stack uses Motorola convention in binary value usage.
Used OPC Server sees OFF data with value 0 and ON data with value 1 from stack.
OPC/IEC 61850 value
Value from stack
Modbus value
FALSE
0:OFF
0 (OFF default)
TRUE
1:ON
1 (ON default)
OPC Data
Type
M/O
Value / Value
range
Type
Name
VT_BOOL
0x, 4x
M
FALSE |
TRUE
BOOLEAN
ctlVal
VT_BOOL
0x, 1x, 3x, 4x
M
FALSE |
TRUE a>
BOOLEAN
stVal
VT_I4
generated by
OPC Server
M
Quality
q
VT_DATE
generated by
OPC Server
M
TimeStamp
t
VT_BSTR
Internal config
O
Text
Description
d
Controllable double point (DPC)
6.2.4.2.
Table 6.2.4.2-1 Controllable double point
OPC Data Types
Modbus informa-
tion element
M/O
Value / Value
Range
SCO
Name
VT_BOOL
0x, 4x
O
FALSE|TRUE
SPI
ctlOperOn
VT_BOOL
0x, 4x
O
FALSE|TRUE
ctlOperOff
VT_BOOL
0x, 4x
O
FALSE|TRUE
ctlSelOn
VT_BOOL
0x, 4x
O
FALSE|TRUE
ctlSelOff
VT_I4
0x, 1x, 3x, 4x
M
Intermediate-state
(0) | off (1) | on (2)
| bad-state (3)
CPT
stVal
VT_I4
4x register
M
Quality
q
123
COM600 series 5.0
1MRS758690
Master Protocols (Ethernet) and Applications Technical Refer-
ence Manual
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