Circutor CVM-NET4+-MC, Instruction Manual

Page: 18 / 38

4�4�8�3�- Configuration of digital outputs
Digital outputs, in addition to being remotely managed, can be used as alarm elements, associated
with an electric variable by a maximum or minimum value, or can carry out the power impulse function
associated with any power consumption parameter (active or reactive).
The following input table is provided to programme them
Table 14
:
Table 14:Configuration of Channel 1 digital output
Digital output 1
Modbus Address Variable Valid data margin
2AF8, 2AF9 MAX value or W•h imp Hexadecimal value
2AFA, 2AFB MIN value Hexadecimal value
2AFC Variable number 00
(See
Table 22 , Table 23 and Table 24
.
)
2AFD Delay / Pulse width
0
to
270F
(9999 Decimal)
Note: When a power variable is selected, the unit automatically recognises the power impulse function
and applies the w·h value of the first record. The pulse width value is in milliseconds
Example of alarm programming by maximum and minimum value with voltage VL1:
Programme a maximum value of 240 V and a minimum value of 200 V (the voltage value must be sent
multiplied by 10
(as shown in
Table 22
,
Table 23
and
Table 24
.
)
, and a delay of 10 s .
Maximum value: 2400 (Decimal) → 00000960 (Hexadecimal)
Minimum value: 2000 (Decimal) → 000007D0 (Hexadecimal)
Delay: 10 (Decimal) → 000A (Hexadecimal)
Variable Number: 01 (Decimal) → 01 (Hex)
Write:
TX : NP 10 2AF8 0006 0C 00000960 000007D0 000A 0010 CRC
RX : NP 10 2AF8 0006 CRC
Read:
TX : NP 04 04 2AF8 0006 CRC
RX : NP 04 0C 00000960 000007D0 000A 0010 CRC
18
CVM-NET4+-MC
Instruction Manual