產(chǎn)品內(nèi)容介紹
RELIANCE 45C992電源模塊
使用RSWho連接模塊
注意：要使用此功能，您的電腦上必須安裝RSLinx。您還需要在中設(shè)置ENBT模塊
機(jī)架。有關(guān)設(shè)置ENBT模塊的信息，請(qǐng)參閱使用CIPconnect連接到模塊（第83頁(yè)）。
1在ProSoft Configuration Builder的樹狀圖中，右鍵單擊MVI56E-SIE模塊。
2從快捷菜單中，選擇“從PC下載到設(shè)備”。
3在下載對(duì)話框中，從選擇連接類型中選擇1756 ENBT下拉框。梯形圖邏輯管理MVI56E-SIE模塊之間的通信需要梯形邏輯和處理器。梯形圖邏輯處理以下任務(wù)：
? 模塊底板數(shù)據(jù)傳輸
? 特殊塊處理
? 狀態(tài)數(shù)據(jù)接收
此外，可能需要加電處理程序來初始化模塊的數(shù)據(jù)庫(kù)和可以清除某些處理器故障。
示例Import Rung with Add-On Instruction被廣泛評(píng)論，以提供關(guān)于每個(gè)用戶定義數(shù)據(jù)類型和控制器的用途和功能的信息標(biāo)簽對(duì)于大多數(shù)應(yīng)用程序，帶附加指令的導(dǎo)入Rung將在沒有修改
3.1控制器標(biāo)簽
與MVI56E-SIE相關(guān)的數(shù)據(jù)存儲(chǔ)在稱為控制器的變量中的梯形圖邏輯中標(biāo)簽。
單個(gè)控制器標(biāo)記可以分組為控制器標(biāo)記集合，稱為控制器標(biāo)記結(jié)構(gòu)。控制器標(biāo)記結(jié)構(gòu)可以包含以下任意組合：
? 單個(gè)控制器標(biāo)簽
? 控制器標(biāo)記陣列
? 下層控制器標(biāo)簽結(jié)構(gòu)
模塊的控制器標(biāo)簽預(yù)先編程到附加指令中導(dǎo)入梯級(jí)邏輯。
控制器標(biāo)簽可以在子文件夾中找到，該子文件夾位于主RSLogix 5000窗口的控制器管理器窗格中的控制器文件夾。
此控制器標(biāo)記結(jié)構(gòu)被安排為樹形結(jié)構(gòu)。
單個(gè)控制器標(biāo)簽包括在樹結(jié)構(gòu)的最低級(jí)別找到。
每個(gè)單獨(dú)的控制器標(biāo)簽定義為保存特定類型的數(shù)據(jù)，例如整數(shù)或浮點(diǎn)數(shù)據(jù)。
控制器標(biāo)簽結(jié)構(gòu)是用用戶定義的數(shù)據(jù)類型聲明的，這些數(shù)據(jù)類型是數(shù)據(jù)類型的集合。
主SIE控制器標(biāo)簽結(jié)構(gòu)分為四個(gè)較低級(jí)別的標(biāo)簽結(jié)構(gòu)。
Using RSWho to Connect to the Module
Note: RSLinx must be installed on your PC to use this feature. You also need an ENBT module set up in the rack. For information on setting up the ENBT module, see Using CIPconnect to Connect to the Module (page 83). 1 In the tree view in ProSoft Configuration Builder, right-click the MVI56E-SIE module. 2 From the shortcut menu, choose DOWNLOAD FROM PC TO DEVICE. 3 In the Download dialog box, choose 1756 ENBT from the Select Connection Type dropdown box.
Ladder Logic
Ladder logic is required for managing communication between the MVI56E-SIE module and the processor. The ladder logic handles tasks such as: ? Module backplane data transfer ? Special block handling ? Status data receipt Additionally, a power-up handler may be needed to initialize the module’s database and may clear some processor fault conditions. The sample Import Rung with Add-On Instruction is extensively commented to provide information on the purpose and function of each user-defined data type and controller tag.
For most applications
the Import Rung with Add-On Instruction will work without modification. 3.1 Controller Tags Data related to the MVI56E-SIE is stored in the ladder logic in variables called controller tags. Individual controller tags can be grouped into collections of controller tags called controller tag structures. A controller tag structure can contain any combination of: ? Individual controller tags ? Controller tag arrays ? Lower-level controller tag structures The controller tags for the module are pre-programmed into the Add-On Instruction Import Rung ladder logic. Controller Tags can be found in the subfolder, located in the Controller folder in the Controller Organizer pane of the main RSLogix 5000 window. This controller tag structure is arranged as a tree structure. Individual controller tags are found at the lowest level of the tree structure. Each individual controller tag is defined to hold data of a specific type, such as integer or floating-point data. Controller tag structures are declared with user-defined data types, which are collections of data types. The main SIE controller tag structure is divided into four lower-level tag structures.
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