B&R 8AC120伺服驱动卡件
此参数指定必须连续传输错误的数量在停止应用程序端口上的通信之前发生。如果参数为设置为0时，应用程序端口将在所有条件下继续运行。如果值设置为大于0（1到65535），如果指定发生故障的次数。[IEC-101主命令]
本节包含模块的命令。本节最多可包含到1000个用户定义的命令，由模块执行并发送到受控设备。无需在此列表中放置1类或2类投票
对于受控设备，每个端口的主驱动程序将执行这些当端口空闲时自动。为了使端口空闲，请确保存在可用的空闲时间，并且命令不经常使用港口。“命令列表”部分以保留标签“开始”和“结束”开始带有标签端。文件中的每一行对应一个单独的命令
每行中的第一个字符位置留空（空白）。
2.4.1启用代码
0=禁用
1=已启用，将使用轮询间隔参数（第35页）（秒）执行
2=条件（当数据库中的点发生变化时执行）
该字段定义命令是否要执行，以及在什么情况下执行条件要禁用该命令，请将该参数设置为0（禁用）。你可以仍然使用特殊功能块通过处理器执行命令。要启用该命令，请将该参数设置为1。
将轮询间隔时间设置为0，以便在每次扫描命令列表。
将轮询间隔时间设置为以秒为单位的值，以便在指定的间隔（第35页）。
仅当与命令关联的内部数据更改时，将此参数设置为2。此值仅对写入命令有效。
2.4.2数据库索引
数据库索引是模块数据库中用作源的位置命令中的数据。数据类型（第36页）字段确定含义索引的。
2.4.3轮询间隔
此参数指定模块应使用的最小频率当启用代码设置为1时执行命令。值为以秒为单位输入。例如，每1秒，在字段中输入值10。参数的值为0意味着：该命令应在列表的每次扫描中执行，并尽快可能
[IEC-101 Master Commands] This section contains the commands for the module. This section can contain up to 1000 user defined commands to be executed by the module and sent to the controlled devices. There is no need to place Class 1 or Class 2 polls in this list for the controlled devices as the master driver for each port will execute these automatically when the port is idle. In order for the port to be idle, make sure that there is idle time available and that the commands do not constantly utilize the ports. The command list section starts with a reserved label START and ends with the label END. Each row in the file corresponds to an individual command with the first character position in each row left blank (white space). 2.4.1 Enable Code 0 = Disabled 1 = Enabled, will execute using Poll Interval parameter (page 35) (seconds) 2 = Conditional (executed when point in database changes) This field defines whether the command is to be executed, and under what conditions. To disable the command, set this parameter to 0 (Disabled). You can still execute commands through the processor, using a Special Function block. To enable the command, set this parameter to 1. Set the Poll Interval Time to 0 to execute the command during each scan of the command list. Set the Poll Interval Time to a value in seconds, to execute the command at the specified interval (page 35). To execute the command only if the internal data associated with the command changes, set this parameter to 2. This value is valid only for write commands. 2.4.2 Database Index Database Index is the location in the module’s database to use as the source for the data in the command. The data type (page 36) field determines the meaning of the index. 2.4.3 Poll Interval This parameter specifies the minimum frequency at which the module should execute the command when the Enable Code is set to one 1. The value is entered in units of seconds. For example, to execute a command every 10 seconds, enter a value of 10 in the field. A value of 0 for the parameter implies that the command should be executed every scan of the list, as quickly as possible.
