Control Operations - ABB 615 Series ANSI Manual

1MAC052634-MB D
3.3.6
615/620 series ANSI
Communication Protocol Manual
Table 10: Time structure data
Address Register
N TimeStamp
(Year,Month)
N+1 TimeStamp (Day,Hour)
N+2 TimeStamp (Min,Sec)
N+3 TimeStamp
(Milliseconds)
N+4 Time quality
Table 11: Time quality register
Bit Meaning
15 Time format
14 Time source
13 RTC not synchronized
12 RTC Failure
11...0 Not used

Control operations

Refer to the Modbus control objects' memory map for the available control objects.
Control operations are supported via the 4X registers.
The control objects in this IED are either single point or double point control objects.
Single point control object output types
Single point control objects can be either pulse outputs or persistent outputs.
The Modbus client can only write "1" to the pulse outputs. This write operation activates
the control operation and there is no need for the Modbus client to ever write "0" to the
object.
The Modbus client can write both "1" and "0" to the persistent outputs. Therefore, the
persistent outputs have two defined levels: "0" and "1".
Most of the outputs in this IED are pulse outputs.
Control operation modes
This IED supports two control models: direct-operate and select-before-operate. The
single point control objects in this IED are of direct-operate type. The double point control
objects can be configured either into the direct-operate or select-before-operate mode.
Vendor-specific implementation
Values Comment
High byte:year, low
byte:month
High byte:day, low
byte:hour
High byte:min, low
byte:seconds
Word: milliseconds
See the table about time
quality register
Values
0 = Local time
1 = UTC time
0 = Internal (RTC)
1 = Modbus stack
0 = RTC synchronized
1 = Not synchronized
0 = RTC OK
1 = RTC failure
0
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