Arteche smART P500, Instruction Manual

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6BCOMMUNICATION SETTINGS
0BDEVICE CONFIGURATION

Behavior for 16-bit analog: Selection of the format for the 16 bits analog
values report as Scaled or Standard behavior. If the option is Scaled then
the relay will program the value to full scale to DNP3, if not, the relay does
not attend the program of the values and when they are greater than the
permissible to 16 bits (-32768 a 32767) then the relay will report overflows.
It is important to mention that if the option is Scaled the full scale value to
DNP3 is not adequate to the voltage and current level of the system (real
values greater than those defined) will be reported like overflows despite
the scaling.

Outputs Operation mode: It permits selecting the operation mode of the
outputs:

SBO (Select Before Operate): This operation mode requires double
operation to change the state of the outputs. The first prepares the
operation and the second makes the action. This is the safest control
method because it requires two consecutive orders that are identical
except for the sequence number of the data frame of the application
layer.

DO (Direct Operate): Opposite to SBO in this mode is not needed any
operation previous to select.

DONA (Direct Operate – Not Acknowledge): The operation in this case is
similar to the DO mode, but in this case the equipment doesn’t reply
indicating if the asked operation was performed or not. As there is no
equipment reply, this is the least secure mode of the three. However, this
method enables that a group of equipments meet the same operation
simultaneously, sending a message to the “broadcast” address and with
no need of waiting for a reply after executing the command.

Dead bands: It permits defining the tolerance percentage or dead band
percentage to the analog values and the dead band value to the counters.
While an analog value remains within the range of dead band, the latest
informed reading is still considered correct.

Control Type: It permits defining the way the relay’s outputs are controlled;
it can be Single Control or Double Control. When Single Control is used,