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Fischer&Porter公司是美国的一个仪表公司,总部在宾夕法尼亚州,共有雇员4.500多人,年销售额达一亿四千八百万美元。该公司化了十年的时间,在1979年3月发表了他们的集散系统。这就是DCI—4000系统。由于DCI—4000系统发表得比较
Fischer & Porter, a U.S. instrumentation company headquartered in Pennsylvania, employs more than 4.500 people and has annual sales of 148 million U.S. dollars. The company took ten years to publish its distribution system in March 1979. This is the DCI-4000 system. As the DCI-4000 system published more