8
Note:
Only supported by some series products.
Alarm input, output description:
Step 1 Connect alarm input device to the alarm input of I/O cable.
Step 2 Connect alarm output device to the alarm output of I/O cable, alarm output is collector open
circuit output which connects 10K resistor to 3.3V externally.
Step 3 Open the Web, set alarm input and output correspondingly. Alarm input on WEB
corresponds to I/O cable on device. When there is alarm, alarm input device will generate
signal of high and low level. Set corresponding NO and NC inputs.
Step 4 Set the WEB alarm output. The alarm output is for the alarm output port of the device. It is the
alarm output port of the I/O cable.
Please refer to the following figure for alarm input information. See Figure 2-3.
Alarm input: When the input signal is idle or grounded, the device can collect the different statuses of
the alarm input port. When the input signal is connected to 3.3
V or idle, the device collects the logic “1”.
When the input signal is grounded, the device collects the logic “0”.
Figure 2-3
Please refer to the following figure for alarm output information. See Figure 2-4
Alarm output: Alarm output is OC door, requiring increase of external pull-up resistor. Output signal is
high and low levels. After pull-up resistor is increased, output signal is high level by default. When
there is alarm output, output signal becomes low level.
