The analog output has voltage output and current output, the external wirings of the two types are different; If the current output was used in the beginning, and now it is changed to voltage output,
It's normal that the AQ still has output when there is no program inside the PLC. For example: The PLC analog will output according to the minimum value of the range which you configure when
Firstly,the program running switch should be set to the stop state. Secondly,use the software to monitor on-line and force the output. If the plc output is normal, it means that the output points of P
The input points of Haiwell host PLC support the capturing of rising edge and falling edge. And the max response frequency of host PLC response can be 1KHz.
(1) It is the software failure that causes the flashing of the PLC error indicator. For example, if the hardware configuration of the PLC program is different from the actual PLC configuration. At thi
Timer processing is sure to take up the scan time of program , but the system overhead of timer is consistent with the overhead of other instructions. It means that the corresponding scan time depends
In order to protect the PLC internal circuit, all the indicators will go out at this time(including power indicators). Short-circuit for a long time may burn out the host PLC, please be careful not to
The maximum allowable current supplied by DC24V from the host PLC is 300mA. It means when the input voltage is DC24V and the power is less than 7.2W, the power supply of host plc can be used directly.
