In S7-200 plc, the execution state of the instruction is stored in the system flag register SM. The system flag register SM can be used in a ladder program in the form of a binary bit contact, but cannot be assigned.
"Non-burning, nicotine for users, low tar content. As the heating temperature (below 500℃) is lower than the combustion temperature of traditional cigarettes (600-900℃), the harmful components produced by tobacco high-temperature combustion pyrolysis and thermal synthesis are reduced, and the release amount of side-flow smoke and environmental smoke (second-hand smoke) is also greatly reduced."
Heating non - combustion products are electronic devices containing tobacco. When you heat them, they produce a nicotine-containing vapor that you can inhale. Hnb Device Oem,Hnb Device Patent,Hnb Device,Hnb Device For Sale Shenzhen MASON VAP Technology Co., Ltd. , https://www.cbdvapefactory.com
The system flag registers commonly used by S7-200 PLCs are as follows:
SMO.O: Constant "1" signal:
SMO.1: 1st scan cycle mark, only "1" in the first scan cycle of the PLC;
SM0.4: Pulse signal with a period of 1 min:
SM0.5: Pulse signal with period Is:
SM0.6: a pulse signal with a period of 2 times the PLC scan period;
SM0.7: RUN mode of PLC, "l" in RUN and "0" in TERM;
SMl.0: The operation result is "0":
SMl.1: Operation result overflow:
SMl.2: The operation result is less than "0";
SMl.3: Divisor is "0";
SMl.6: BCD code is illegal when BCD is converted to binary;
SMl.7: When ASCII is converted to hexadecimal, the ASCII code is illegal:
SM4.3: Program error;
SM5.0: 110 module error;
SM5.1: The switching I/O point is outside the allowable range;
SM5.2: The analog I/O point is outside the allowable range.
See Figure 9-1.5 for the use of the system flags register. When IO.O -1, a pulse signal output with a period of Is can be obtained on QO.1.
They are different from traditional cigarettes and work by heating tobacco to a very low temperature. Tobacco is heated to 350 ° C in a heat-incombustible device, while traditional cigarettes burn at up to 900 ° C.
Still, the temperature at which non-combustion products are heated is high enough to vaporize and inhale harmful chemicals.
Although both are electronic devices, heated non-combustible products are also different from e-cigarettes or steam devices. These usually use chemical liquids and do not necessarily contain nicotine. E-cigarettes tend to heat liquids to around 250 degrees Celsius to produce vapor.
