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IO Modual
then be switched off.
The parameter setting is shown in gure 3-13.
3.4 Digital Output
There are two modes selection for digital output circuit, one is alarm
mode, and the other is energy output mode. For alarm mode, action of
digital output circuit is controlled by whether the alarm is occurred or
not. For energy output mode, digital output circuits can output various
types of energy, such as import active energy, export active energy,
import reactive energy and export reactive energy. When outputting
energy pulses, pulse width can be set from 20 to 1000ms. The minimum
interval between two pulses is 20ms.
Parameter Setting:
Take AXM-IO21 (AXM-IO2 module in sub address 0) for example.
“DO working mode (10a5H)” register: this register determines the
working mode of DO circuits. If the register is “0”, then DO1 and DO2
will work in energy output mode. If the register is “1”, then DO1 and
DO2 will work in alarm mode.
“DO pulse width (10a6H)” register: when DO circuits work in energy
output mode, this register determines the width of energy pulses.
“DO1 output type (10a7H)” register: when DO circuits work in energy
output mode, this register determines the energy output type for DO1.
If this register is “0”, DO1 outputs nothing. If this register is “1”, DO1
outputs import active energy. If this register is “2”, DO1 outputs export
active energy. If this register is “3”, DO1 outputs import reactive energy.
If this register is “4”, DO1 outputs export reactive energy.
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