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SY-0399095E工业卡件
COM2接口的操作模式
串行接口COM2固定设置为无源模式（MMC接口）。
被动模式用于执行通信
借助DRUCK和EMAS块进行配置
用户程序和连接到串行接口。
COM2的应用程序特定初始化可以是使用SINIT功能块执行。
接口参数
被动模式：默认设置
同步：RTS/CTS
接口标识符COM2:2
波特率：9600
停止位1
数据位：8
奇偶校验位：无
回声：关闭发送中断字符：0为启用文本结束字符发送方向：无1）发送文本结束字符：<CR>1）接收文本字符结尾：<CR>2）1）发送的默认文本字符结尾未发送方向（CR）。然而，这种违约文本结尾字符（CR）不得出现在指定DRUCK块的消息文本。
对于接收方向，文本结尾性格总是必要的
此默认值文本结尾字符（CR）不得出现在消息文本也不在指定的用户数据中EMAS块。
对于COM2的被动模式，接口参数可以使用SINIT功能块进行更改。如果更改的值不合理，COM2接口使用默认值。
在被动模式下设置SINIT块或默认值。3.3.12组网接口07 KT 93中央单元配备了一个特殊的并行接口。因此，它可以与使用附加通信的另一总线系统处理器模块。附加通信
处理器有自己的外壳。两个壳体（07 KT 93和通信处理器）
通过卡扣连接组装。中央单元中使用的高速计数器07 KR 91、07 KT 92和07 KT 93独立于用户程序，因此能够响应快速响应外部信号。其特点如下：计数频率最大为10 kHz。计数器
计数端子05处的0–>1条边（也指定为如E 62,00）。
计数器从–32768向上计数至+32767（8000H…7FFFH）。如果超过+32767，计数器跳到-32768。Operating modes of the COM2 interface
The serial interface COM2 is fixedly set to the passive
mode (MMC interface).
The passive mode is used to perform a communication
configured with the aid of the DRUCK and EMAS blocks
between the user program and a device connected to the
serial interface.
The application-specific initialization of COM2 can be
performed using the SINIT function block.
Interface parameter
Passive mode: Default setting
Synchronization: RTS/CTS
Interface identifier COM2: 2
Baud rate: 9600
Stop bits 1
Data bits: 8
Parity bits: none
Echo: off
Send Break Character: 0
Enabling End-of-text character for
sending direction: no 1)
Sending End-of-text character:1)
Receiving End-of-text character:2)1) The default End-of-text character for the sending
direction (CR) is not sent. Nevertheless, this default
End-of-text character (CR) must not appear in the
message text of the assigned DRUCK block.
2) For the direction of reception, an End-of-text
character is always necessary. This default
End-of-text character (CR) must not appear neither in
the message text nor in the user data of the assigned
EMAS block.
For the passive mode of COM2, the interface parameters
can be changed using the SINIT function block. If the
changed values are not plausible, the COM2 interface
uses the default values.
In the passive mode the parameters established by the
SINIT block or the default values are set.
3.3.12 Networking interface
The 07 KT 93 central unit is equipped with a special
parallel interface. It is thus possible to network it with
another bus system using an additional communication
processor module. The additional communication
processor has its own housing. Both housings (of the
07 KT 93 and of the communication processor) are
assembled by means of a snap-on connection.The high-speed counter used in the central units
07 KR 91, 07 KT 92 and 07 KT 93 works independently of
the user program and is therefore able to response
quickly to external signals. Its features are as follows:
The counting frequency is max. 10 kHz. The counter
counts the 0–>1 edges at terminal 05 (also designated
as E 62,00).
The counter counts upwards from –32768 to +32767
(8000H...7FFFH). If +32767 is exceeded, the counter
skips to –32768.
