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超音速 submitted 2011/4/26 9:08:21
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超音速 submitted 2011/4/26 9:08:17
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超音速 submitted 2011/4/26 9:08:13
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超音速 submitted 2011/4/26 9:08:12
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超音速 submitted 2011/4/26 9:08:10
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超音速 submitted 2011/4/26 9:08:09
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超音速 submitted 2009/9/22 17:12:36
Description:If you have stored a project with WinCC flexible 2008 + SP1 (Service Pack 1), when you migrate it into STEP 7 Basic V10.5, you get the following error message:
Migration only supports projects that have been created with WinCC flexible 200
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超音速 submitted 2008/3/17 13:30:29
MicroWin 4.0 SP4在安装前需要搜索您计算机目前有没有安装过MicroWin 4.0版本或MicroWin 4.0 SP1/SP2/SP3版本,假如你计算机没有安装以上的版本,MicroWin 4.0 SP4将无法安装。解决的方法有两种:
1)安装MicroWin 4.0 SP4之前先安装MicroWin 4.0版本或MicroWin 4.0 SP1/SP2/SP3版本,再安装MicroWin 4.0 SP4;
2)
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超音速 submitted 2007/12/24 17:00:15
■一.※ 有网友问:增量旋转编码器选型有哪些注意事项?应注意三方面的参数:1. 械安装尺寸,包括定位止口,轴径,安装孔位;电缆出线方式;安装空间体积;工作环境防护等级是否满足要求。2. 分辨率,即编码器工作时每圈输出的脉冲数,是否满足设计使用精度要求。3.电气接口,编码器输出方式常见有推拉输出(F型HTL格式),电压输出(E),集电极开路(C,常见C为NPN型管输出,C2为PNP型管输出),长线驱动器输出。其输出方式应和其控制系统的接口电路相匹配。■二.※ 有网友问:请教如何使用增量编
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超音速 submitted 2007/10/28 17:15:14
Public Const VK_LBUTTON = &H1Public Const VK_RBUTTON = &H2Public Const VK_CANCEL = &H3Public Const VK_MBUTTON = &H4Public Const VK_BACK = &H8Public Const VK_TAB = &H9Public Const VK_CLEAR = &HCPublic Const VK_RETURN = &HDPu
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