| 摘要 |
The invention refers to a PC control for filling CO2 cylinders, designed to control a variable number of valves (V1-12) through which the gas passes into the cylinders, in a filling installation with electronic scales (Q1-12). The control is made up of a PC computer which charges, via a data bus (D0-5), two valve control memory registers (1, 2) and two operator control storage registers (5, 6). The registers are selected by a command decoder (14) that is controlled by a computer. The valve control memory registers (1, 2) transmit, through two separation and control units (3, 4), instructions for the valves (V1-12), whilst the weight of the cylinders is transmitted to the computer by the electronic scales (Q1-12). The separation and control units (3, 4) are controlled by a safety device (15), which is controlled by a computer by means of the command encoder (14).
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