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S7-300的N个常见问题解答(之一到八完整版)(8)

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click the \Mark the CP5511 with the cursor in the right window (Fig. 3). Then click the \can mark the CP5511 in the left window and click the \button. For this activity you need to have administrator rights to your PC (see STEP 7 Readme file, section 3.1).

0x0313 Baud rate does not correspond with network or incorrect interrupt:

Check the transfer speed (Baud rate) in the PG/PC interface and in the hardware configuration. The Baud rate must not be greater than the Baud rate that is supported by the slowest user. The PROFIBUS addresses configured in the hardware configuration must match the addresses of the system configuration.

Check the interrupt and address assignments. Information on further procedures is available in the STEP 7 Online Help under \the PG/PC interface\in the paragraph on \interrupt assignment). More information is also available in the STEP 7 Readme file (\> SIMATIC > Product notes\in section 4.4.1 under \MPI onboard and the MPI PC module -> Setting interrupts and addresses\

0x0316 Hardware ressource already busy:

If this error message occurs after the installation of the CP5511 in \

0x031a Cannot find any active PB/MPI network: Activate the function \is the only master on the bus\This disables an additional safety function against bus faults. You get to this mask via the \button - see Fig. 1. The requirement is that the interface parameters used are set to \

0x0318 Interrupt occupied:

This message appears in most cases in Windows NT. In the BIOS of your computer change the \setting to \You get to the BIOS of your computer by restarting your PC and hitting the F2 key.

0x031b Synchronization error:

Please check the bus parameters on the bus. These must match the bus parameters configured in the hardware configuration.

Check the installation of the bus cable. 0x031c AMPRO2 system error:

Activate the function \is the only master on the

bus\ Please check whether all the terminators for the PROFIBUS network are connected properly.

It is also possible that the STEP 7 drivers are not installed or have been deleted or that an incorrect driver has been installed. In this case we recommend sending the CITAMIS.str file to Customer Support for checking.

Another possible cause might be that the hardware is defective.

0x0320 Cannot find DLL/VXD as file:

On your PC please find the file specified in the Windows Explorer via \on your computer or it is found twice. Please rename the file in the Windows system directory and then restart Windows. In the Registry, the references to the files are missing. Access to the required parameters from the Registry is not possible. Perhaps you don't have the required access rights or the system database is damaged.

The drivers are not compatible with the operating systems. 73:哪些软件里含有CP5511,CP5512,CP5611,RS232 PC-Adapter 的驱动?

如果安装了相应的软件后包含―Set PG/PC Interface …‖

组件,那么这些软件都含有CP5511,CP5512,CP5611,RS232 PC-Adapter

的驱动,只需在―Set

PG/PC

Interface …‖->―Select…‖->选择相应的驱动,然后―Install-->‖即可。

具体的软件有Step7,Step7 MicroWin,Simatic Net,WinCC,Protool,Flexible,PCS7。

74:当试图通过TeleService建立PRODAVE MPI和样列程序之间的通讯时,为什么会出现出错消息4501? 调制解调器没有响应,并产生了出错消息4501。在这个情况下,工作站的规范不正确。 在TeleService对话框中检查工作站的名称和工作站(standort)规范。此处可能有个不正确的缺省设删除―station‖(―standort‖)域中的缺省名,或输入正确的工作站名。那么就可以使用调制解调器在PRODAVE MPIY和TeleService之间建立连接。

75:是否可以将数据块的当前值作为初始值从AS传送到项目中?

可以。从AS中―ONLINE,打开相关数据块(DB).使用软盘图标―OFFLINE‖保存DB.

通过―File > Generate Source‖在DB中产生STL源代码. 通过手动操作将BEGIN和END_DATA_BLOCK行之间的当前值与相应的声明(初始值)逐行 连接起来,从而得到下列声明语句:

STRUCT

wordVar : WORD := W#16#ABCD; END_STRUCT ; 编译STL源代码。

76:在通讯任务中,在哪些OB中必须调用SFB? 在启动型OB(如用于S7-300的OB100和用于S7-400的OB100和OB101)和循环模式OB(OB1)中,必须调用数据通讯或程序管理(把PLC切换到STOP或RUN)所需的所有SFB。 OB100是启动型OB,并在重新启动CPU时运行。例如,在该OB中,用标记M1.0和M0.1来释放第一个通讯触发器。

77:怎样编程间接访问一个ARRAY类型变量的元素? 一个位、字节或者字符域的尺寸是按照字节限制排列的——在所有其它情况下是按照字对齐的。表T6-1中给出了一个域的存储示例。操作系统计算域中单个元素末端位置的位地址。域被分配到从下一个字地址(或字节地址)。下一个数据类型从下一个整字开始(或者整字节). 声明部分:

在声明部分,必须定义一个与将被间接寻址的ARRAY有着同一结构的ARRAY。不一定非要将ARRAY声明为IN-OUT变量;也可以声明为TEMP、IN或OUT变量。 网络:

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