WebControl
TM
PLC User Guide Version 3.02.17f
Copyright(c) 2008,-2013 CAI Networks, Inc. 47
Command line browser wget can be used to do manually control. The above lines
maybe need in double quotes to work.
6.8 External Analog Chip DS2450
4-1Q: I have DS2450 on the 1-wire bus, but reading is not stable?
4-1A: Maxim-IC DS2450 known for its sensitivity to noise. Please make sure to add
100pF disc capacitors across the chip on its VDD to ground, and from each analog
input immediately to the ground, also. Any anlog input channel should have 1K input
resistor to block some the incoming noise.
6.9 Power Supply Requirement
5-1Q: What kind of power required to run WebControl?
5-1A: WebControl 2.2.2 hardware can operate from 7.5 to 12VDC power supply.
However, when using DC12V, the regulator will be VERY hot. It is recommended to
run on 9VDC1A power supply. Please make sure power supply has good filtering
capacitors. Any noise in the power supply could cause problem during execution of
WebControl PLC logic. If a relay board is also used with WebControl, please make
sure the power supply has enough reverse current to handle the spike during relay
switching.
