帶有一組默認的ControlNet參數(shù)，只能發(fā)送
計劃外數(shù)據(jù)。1756-CNB中的默認網(wǎng)絡參數(shù)集，
以及所有ControlNet設備，是：
•網(wǎng)絡更新時間（NUT）為100ms
•計劃的大節(jié)點地址（SMAX）為0
SMAX是可以使用
定期服務。
•計劃外大節(jié)點地址（UMAX）為99
UMAX是節(jié)點的高網(wǎng)絡地址，可以
在ControlNet網(wǎng)絡上進行通信。UMAX必須設置為相等
達到或高于SMAX。
•假定大電纜長度和大中繼器數(shù)量
使用此默認的ControlNet網(wǎng)絡，您可以在
通過使用RSNetWorx等軟件包在網(wǎng)絡上安裝各種設備
ControlNet、RSLogix5000和ControlLogix網(wǎng)關工具
（1756-GTWY）。
如果在此默認狀態(tài)下使用，可能無法實現(xiàn)佳性能。
但是，可以調(diào)試（調(diào)整）默認網(wǎng)絡以獲得佳性能
性能，如本手冊下文所述。
重要提示：ControlNet網(wǎng)絡應使用
RSNetWorx用于ControlNet以提高性能。
至少，我們建議將計劃外的大值
節(jié)點地址（UMAX）必須設置為高節(jié)點
網(wǎng)絡上的地址。將此參數(shù)保留為默認值
99的值將浪費帶寬并減少系統(tǒng)開銷
表演
我們還建議設置計劃的大節(jié)點數(shù)
將地址（SMAX）設置為高于高計劃值3或4的值
允許將來擴展的節(jié)點地址
When a ControlNet network is powered on for the first time, it comes up with a default set of ControlNet parameters capable of sending only unscheduled data. The default set of network parameters in the 1756-CNB, as well as all ControlNet devices, is: • Network Update Time (NUT) of 100ms • Scheduled Maximum Node Address (SMAX) of 0 The SMAX is the highest network address of a node that can use the scheduled service. • Unscheduled Maximum Node Address (UMAX) of 99 The UMAX is the highest network address of a node that can communicate on the ControlNet network. The UMAX must be set equal to or higher than the SMAX. • Assumed maximum cable lengths and maximum number of repeaters With this default ControlNet network, you can communicate between the various devices on the network by using such packages as RSNetWorx for ControlNet, RSLogix5000, and the ControlLogix Gateway Tool (1756-GTWY). If used in this default state, optimum performance may not be achieved. However, the default network can be commissioned (tuned) for optimum performance, as described later in this manual. Important:The ControlNet network should be configured using RSNetWorx for ControlNet to improve performance. At a minimum, we recommend that the Unscheduled Maximum Node Address (UMAX) be set equal to the highest node address on the network. Leaving this parameter at the default value of 99 will waste bandwidth and reduce system performance. We also recommend setting the Scheduled Maximum Node Address (SMAX) to a value 3 or 4 above the highest scheduled node address to allow for future expandability
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