PLC是專門為工業生產環境而設計的控制設備。當工作環境較為惡劣，如電磁干擾較強、濕度高、電源、輸入和輸出電路等易受到干擾時，會使控制系統的可靠性受到影響。除了為特殊工作環境而設計的PLC外，一般PLC工作的環境溫度應在0~55℃的范圍，并要避免太陽光直接照射；安裝時要遠離大的熱源，保證足夠大的散熱空間和通風條件；空氣的相對濕度應小于85%，不結露，以保證PLC的絕緣良好。PLC應避免安裝在有振動的場所；對振動源允許的條件則應按照產品說明書的要求，安裝減振橡膠墊或采取其他防振措施。空氣中有粉塵和有害氣體時，應將PLC封閉安裝。
The GE Versamax IC200ALG327 is a 13 bit voltage analog output module that provides 12 analog voltage outputs, with a range of -10vdc to +10vdc (bipolar) or 0v to +10vdc (unipolar). The GE Versamax IC200ALG327 has 12 channels single ended, in one group. The GE Versamax has 250vac continuous duty ; 1500vac duty for 1 minute
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