Basler Electric BE1-851E DNP3 Protocol - Manual (Page 25)

Point
Index
Description Control Codes And Their Description
26 Local Setting Group Control Switch Latch On: Return Setting Group Control
to relay local logic
27 101 Virtual Breaker Control Switch Close: Close Breaker (changes 101C
Binary Input from 0 to 1 for 200
ms )
Trip: Trip Breaker (changes 101T
from 0 to 1 for 200 ms)
Notes for Table 5-2:
1. Read of Points
- Reads of points from 0 to 7, 9 to 16, and 18 to 26 return the current state of corresponding
point.
- Reads of points from 8, 17, and 27 always return zero.
2- The following restrictions should be observed when using object 12 to control the points listed in
Table 5-1.
• The Control Code field of object 12 is parsed the following way:
- If the Control Code is NULL, then the command will be accepted without any action being
taken.
- If Queue, and Clear sub-fields are not zero, the returned Control Status is 4 (Control
operation not supported).
- A Code sub-field of “Pulse On” (1) in combination with a value in the Trip/Close sub-field
form a “Trip” or “Close” value. A “Trip” value consists of a “PULSE ON” (1) in the Code
sub-field and a 2 in the Trip/Close sub-field. This results in a value of 81(hex) in the
Control Code field. A “Close” value consists of a “PULSE ON” (1) in the Code sub-field
and a 1 in the Trip/Close sub-field. This results in a value of 41 (hex) in the Control Code
field.
3. Valid Control Code values are:
- 0x00 = No action will be taken.
- 0x01 = Pulse output to opposite of current state, and then restore to previous state. Pulsed
output is active 200 to 250 ms.
- 0x03 = Latch On
- 0x04 = Latch Off
- 0x41 = Close (Breaker Close)
- 0x81 = Trip (Breaker Open)
All operations not defined above are invalid and will be rejected. If the Control Code is legal, but not
supported for the requested point, the Status Return value is “Control operation not supported for this
point” (value 4).
- The Count, OnTime and OffTime fields are ignored.
- Arm timer value for all Select/Operate operations is 30 seconds.
It is important to notice that any control function may be rejected because of the relay internal state.
When this happens, the Status Return value is “Request not accepted because of hardware
problems” (value 6). One of the reasons for the rejection may be that that point Logic Function Block
has the Logic (Control) Mode disabled.
For example: Control functions for the hardware output points (points 0 to 13) will be rejected if the
Output Control for all hardware outputs is disabled.
The Logic (Control) Mode of any object 12 point can be changed (enabled/disabled) via the specific
point of object 41 (Analog Output Control Blocks). Refer to Analog Output Status Points and Analog
Output Control Block points from 0 to 6.
9289900792 Rev C BE1-851E DNP Protocol 5-5