关于CS3000的设定 坐等高手解决？ 是单回路?主回路?付回路? 在:那回路detaile的里. 参考: d1-45 process variable tracking (measurement tracking) ▼ measurement tracking the process variable tracking function prevent the abrupt changes in the manipulated output value (mv) when change from the manual (man) mode to automatic (aut) mode, by forcing the setpoint value (sv) to agree with the process variable (pv). ● characteristics of process variable tracking when switching from the manual (man) mode to automatic (aut) mode, the existence of a large deviation is harmful, since it makes the manipulated output change (mv) very large. if force the setpoint value (sv) to agree with the process variable (pv) in manual mode operation via process variable tracking, abrupt control action can be avoided when the mode switches to automatic (aut). suppose a primary loop is in cascade connection and controls in the automatic (aut) or cascade (cas) mode. if the mode of the secondary loop in the cascade connection switches from cascade (cas) to automatic (aut), the cascade connection becomes open and the control action of the primary side loop can stop. in this situation, the setpoint value (sv) of the primary loop can be forced to agree with the process variable (pv) by the process variable tracking function. ● define process variable tracking use the function block detail builder to define the process variable tracking. • measurement tracking man mode: select “yes” or “no.” the default is “no.” aut and cnd mode: select “yes” or “no.” the default is “no.” cas and cnd mode: select “yes” or “no.” the default is “yes.” the statuses referred to as man, aut and cas include remote backup modes such as aut (rout) and aut (rcas).查看更多
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