產(chǎn)品內(nèi)容介紹
WOODWARD 9905-867數(shù)字調(diào)速器
ControlLogix控制器映像
由于RSLogix 5000軟件版本16.00或更高版本中的驅(qū)動器附加配置文件,提供描述性控制器標(biāo)記,I/O圖像(標(biāo)記大小和位置)為根據(jù)使用的驅(qū)動器自動配置。使用RSLogix時(shí)但是,5000通用配置文件中的控制器標(biāo)記不是描述性的或定義的。邏輯命令是控制器生成的32位控制數(shù)據(jù)字并由選項(xiàng)模塊使用。邏輯狀態(tài)是32位狀態(tài)字由選項(xiàng)模塊生成并由控制器使用的數(shù)據(jù)。
使用ControlLogix控制器時(shí),邏輯命令字始終為
輸出圖像中的DINT 0,邏輯狀態(tài)字始終為:
?使用驅(qū)動器附加配置文件時(shí),輸入圖像中的DINT 0。
?使用通用配置文件時(shí)使用DINT 1。
本手冊包含兼容產(chǎn)品的位定義,可在附錄D“邏輯命令/狀態(tài)字:PowerFlex”中的發(fā)布時(shí)間750系列驅(qū)動器。
使用參考/反饋參考是由控制器,并由選項(xiàng)模塊消耗。反饋為32位選項(xiàng)模塊生成的REAL(浮點(diǎn))狀態(tài)數(shù)據(jù)由控制器消耗。
使用ControlLogix控制器時(shí),32位REAL參考始終輸出圖像中的DINT 1(見表3),32位REAL Feedback為始終:
?使用驅(qū)動器附加配置文件時(shí),輸入圖像中的DINT 1。
?使用通用配置文件時(shí)使用DINT 2。使用驅(qū)動器附加配置文件時(shí),參考和反饋是自動正確格式化并顯示為控制器標(biāo)記。
使用時(shí)通用配置文件,I/O映像基于整數(shù),參考和反饋為浮點(diǎn)。因此,COP(副本)指令或用戶需要定義的數(shù)據(jù)類型(UDDT)才能將值正確寫入?yún)⒖疾⒆x取反饋中的值。參見梯形圖邏輯程序圖20和圖21中的示例。
參考和反饋32位REAL值代表驅(qū)動速度。這個(gè)速度基準(zhǔn)和反饋的縮放取決于驅(qū)動參數(shù)
-[速度單位]。例如,如果參數(shù)300設(shè)置為Hz,則32位REAL參考值“30.0”等于參考值30.0 Hz。如果參數(shù)300為設(shè)置為RPM時(shí),32位REAL Reference值“1020.5”將等于Reference1020.5轉(zhuǎn)/分。注意,指令的最大速度不能超過驅(qū)動器參數(shù)520-[Max Fwd Speed]的值。
表4顯示了示例PowerFlex 750系列驅(qū)動器的參考及其結(jié)果:?參數(shù)300-[Speed Units]設(shè)置為Hz當(dāng)使用驅(qū)動器附加配置文件時(shí),控制器標(biāo)簽用于參考和反饋?zhàn)詣忧腋袷秸_。
這樣就不需要使用COP(復(fù)制)指令或UDDT復(fù)制DINT進(jìn)行數(shù)據(jù)轉(zhuǎn)換將數(shù)據(jù)轉(zhuǎn)換為真實(shí)單詞。
ControlLogix Controller Image
Since the drive Add-on Profile in RSLogix 5000 software, version 16.00 or later, provides descriptive controller tags, the I/O image (tag size and location) is automatically configured based on the drive being used. When using the RSLogix 5000 Generic Profile, however, controller tags are not descriptive or defined.The Logic Command is a 32-bit word of control data produced by the controller and consumed by the option module. The Logic Status is a 32-bit word of status data produced by the option module and consumed by the controller. When using a ControlLogix controller, the Logic Command word is always DINT 0 in the output image and the Logic Status word is always: ? DINT 0 in the input image when using the drive Add-on Profile. ? DINT 1 when using the Generic Profile. This manual contains the bit definitions for compatible products available at the time of publication in Appendix D, Logic Command/Status Words: PowerFlex 750-Series Drives. Using Reference/Feedback The Reference is a 32-bit REAL (floating point) piece of control data produced by the controller and consumed by the option module. The Feedback is a 32-bit REAL (floating point) piece of status data produced by the option module and consumed by the controller. When using a ControlLogix controller, the 32-bit REAL Reference is always DINT 1 in the output image (see Table 3) and the 32-bit REAL Feedback is always: ? DINT 1 in the input image when using the drive Add-on Profile. ? DINT 2 when using the Generic Profile.
When using a drive Add-on Profile
the Reference and Feedback are automatically formatted properly and displayed as a controller tag. When using the Generic Profile, the I/O image is integer-based and the Reference and Feedback are floating point. Because of this, a COP (Copy) instruction or User Defined Data Type (UDDT) is required to correctly write values to the Reference and read values from the Feedback. See the ladder logic program examples in Figure 20 and Figure 21. The Reference and Feedback 32-bit REAL value represents drive speed. The scaling for the speed Reference and Feedback are dependent on drive Parameter 300 - [Speed Units]. For example, if Parameter 300 is set to Hz, a 32-bit REAL Reference value of “30.0” would equal a Reference of 30.0 Hz. If Parameter 300 is set to RPM, a 32-bit REAL Reference value of “1020.5” would equal a Reference of 1020.5 RPM. Note that the commanded maximum speed can never exceed the value of drive Parameter 520 - [Max Fwd Speed]. Table 4 shows example References and their results for a PowerFlex 750-Series drive that has its: ? Parameter 300 - [Speed Units] set to Hz When using the drive Add-on Profile, the controller tags for Reference and Feedback are automatically and properly formatted. This eliminates the need for data conversion using COP (copy) instructions or a UDDT to copy the DINT data into a REAL word.
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