Configuring technology I/Os (X142) as isochronous

时间：2021-07-28

Requirements

STEP 7, V16 or higher

SIMATIC Drive Controller has been configured.

At least one axis technology object has been created at the CPU of the SIMATIC Drive Controller.
See for example Configuring drives with SINAMICS Integrated isochronously.

Procedure

Open the device view of the CPU.

Configure the operating modes of the technology I/Os in the CPU properties under "General" > "DI/DQ 8x24VDC[X142]" > "Channel parameters", for example, a timer DQ for later use as a cam output for channel 0.

图片: Setting the operating mode for technology I/O X142

In the project tree under the axis technology object, add an output cam technology object under "Output cam" > "Add new output cam".

Open the configuration of the output cam.

Under "Hardware interface", select the "Activate output" checkbox and the option "Output over Timer DQ".

Assign the configured output under "Output".

图片: Assigning a channel to the output cam

Use the "Device configuration" button to switch back to the CPU settings and check the settings under "DI/DQ 8x24VDC [X142]" > "I/O addresses".

The following settings must be configured for the input and output addresses:

- "Isochronous mode" is enabled.

- The organization block "MC Servo" is selected.

- The process image "OB Servo PIP" is selected.

Automatic settings

Isochronous mode is mandatory for certain operating modes of the X142 technology I/O channels.

As soon as you set one of the following operating modes for a technology I/O channel, STEP 7 automatically selects the option "isochronous mode".

Timer DI

Timer DQ

Oversampling DI

Oversampling DQ

Event/period measurement

If you assign an output cam, cam track or measuring input technology object to an X142 I/O, STEP 7 automatically sets the process image "OB Servo PIP".

In all other cases, you set the process image manually. If isochronous mode is mandatory for at least one technology I/O, you must set the process image of the "MC Servo" OB (OB91) or an isochronous mode interrupt OB (OB6x).

Setting the clock system

You have configured the technology I/Os as isochronous. Next, set the clock system.

Make the following settings in accordance with whether you are operating the X142 technology I/Os in independent or coupled isochronous mode:

For independent isochronous mode or if the X142 technology I/Os are the leading clock system

- Set the required cycle time.

- Assign the "MC Servo" OB the clock system of the technology I/Os.

提示

You cannot operate the X142 technology I/Os in isochronous mode separately from SINAMICS Integrated. If you want to operate X142 technology I/Os and SINAMICS Integrated in isochronous mode simultaneously, always set coupled isochronous mode.

For coupled isochronous mode:

- Assign the leading clock system to the clock system of the technology I/Os.
You can find details of how to assign the leading clock system in Setting the clock system.

13681875601

词条
词条说明
CPU ST40
技术数据SIMATIC S7-200 SMART，CPU ST40，上，DC/DC/DC，机载 I/O： 24 个 24V DC 数字输入；16DO 24V DC；电源：DC 20.4 - 28.8V DC，程序存储器/数据存储器 40 KB 网络服务器支持一般信息产品类型标志CPU ST40 DC/DC/DC附带程序包的● 工程系统STEP 7 Micro/WIN SMART安装方式/安
S7-300/400的状态指令
一、CPU寄存器CPU的寄存器用于寻址或处理数据。在相关命令（L， T，...）的配合下，可以在CPU存储器区和寄存器之间进行数据交换。1）累加器： S7-300CPU有2个累加器，S7-400CPU有4个累加器，用于算术、比较指令或者用于其他字节、字及双字指令。2）地址寄存器：要S7－300/400有2个地址寄存器作为指针用于寄存器间接寻址。3）数据块寄存器：有2个，数据块寄存器里包含打开的（活
OPC UA 服务器的常规设置
OPC UA 服务器的常规设置OPC UA 的 TCP 端口OPC UA 默认使用 TCP 端口 4840。但用户可选用其它端口，此时，可选择 1024 到 49151 的所有端口。此时，需确保与其它应用程序不冲突。OPC UA 客户端在建立连接时必须使用选定的端口。在以下示例中，选择端口 48400：会话设置会话较大**时在该字段中*在不进行数据交换的情况下 OPC UA 服务器关闭会话之前的较
OPC 服务器的 PLC 报警
OPC 服务器的 PLC 报警SIMATIC NET OPC 服务器 - 有关组态 CPU 消息的建议如果为 PC 站的 OPC 服务器组态 PLC 报警，则 STEP 7 将不会验证组态的一致性。为确保 PLC 报警功能正常发挥作用，请遵循以下建议：只为每个 PLC 组态一个具有中断功能的 S7 连接以用于接收报警。在*的项目中只使用一种报警文本语言。不支持使用多语言的报警文本。对于所有报警，