Configuring Timer DI operating mode

時(shí)間：2021-07-28作者：上海騰希電氣技術(shù)有限公司瀏覽：108

Configuring Timer DI operating mode



Timer DI

Timer DI operating mode allows you to acquire the switching time of up to two edges per application cycle (for example OB 91, OB 6x), for example for use as a measuring output.

Select the Timer DI operating mode for the required channel.


圖片: Operating mode: Timer DI

Inversion

You can invert the 24 V ** to adjust it to your process. By default, the ** is not inverted.

Input delay

To suppress faults, you can set an input delay of 1 μs or 125 μs for the input filter of the digital inputs. Changes to the ** are only detected if they are constantly pending for longer than the set input delay time.

To allow **s pending very briefly to be detected with timer DI (for example level of 100 μs), set an input delay of 1 μs.

Assigning the measuring input technology object

The measuring input technology object must always be assigned to another technology object whose position is evaluated by the measuring input.

You can assign the measuring input technology object to the following technology objects:

Synchronous axis

Positioning axis

External encoder

You can assign the measuring input technology object precisely one axis or one external encoder.

You can assign multiple measuring input technology objects to one axis or one external encoder.

Configuring the measuring input technology object

Select the configuration of the measuring input in the Technology objects folder in the project tree.

Configure the basic properties of the technology object in the Basic parameters configuration window.


圖片: Basic parameters

Name

Define the name of the measuring input in this field. The technology object is listed under this name in the project tree. The tags of the measuring input can be used in the user program under this name.

Assigned axis or external encoder

STEP 7 displays the axis or external encoder assigned to the measuring input. You can use the link to directly access the basic parameters of the higher-level technology object.

Unit of measurement

The unit of measure shown for the position of the measuring input corresponds to the unit of measure of the higher-level technology object.

Hardware interface

In the Hardware interface configuration window, assign the a measuring input type Timer DI and the selected channel to the technology object.


圖片: Hardware interface

Measuring input type: Measuring using Timer DI

Select a measurement input for a measurement using a Timer DI. The selection box displays all channels that have been configured correctly.

提示 Extending the configuration limits A maximum of eight timer DI can be configured at the X142 interface. If the timer DI at X142 are not sufficient for your needs, you can configure a further eight measuring inputs at interface X122/X132. You can also extend the configuration limits using time-based I/O modules: ET 200SP distributed I/O system: TM Timer DIDQ 10x24V ET 200MP distributed I/O system: TM Timer DIDQ 16x24V You can find more information on these systems in .




提示 Unsupported instructions for X142 The function blocks for the use of time-based IO (TIO instructions) are not supported by the X142 interface. Recommendation: Use the measuring input technology object for timer DI.




Adjustment for measuring range activation time

To adjust the activation time defined in the system, enter an additional activation time in the Extended parameters configuration window.

Lost Edge Counter (LEC)

Timer DI support Lost Edge Counter. If more than two edges to be detected occur within one position control cycle, a measured value cannot be evaluated for the other edges to be detected. The LEC records the number of edges lost.

Which lost edges are recorded in the LEC depends on the mode set in the Motion Control instruction. For example, if you only want to measure rising edges, the LEC only records the rising edges not measured. The LEC can count and display a maximum of seven lost edges. The number of lost edges is displayed in the function block and in the technology data block.

Further information

You can find additional information on the following topics in the S7-1500T Motion Control function manuals:

Measuring input type: Timer DI

Measuring input type: SINAMICS (central measuring input)

Measuring input type: PROFIdrive ** (drive or external encoder)

Lost Edge Counter (LEC)


上海騰希電氣技術(shù)有限公司專注于西門子PLC,V90伺服,V20變頻器等, 歡迎致電 13681875601

• 詞條

  詞條說(shuō)明

• CPU 1518-4 PN/DP

  6ES7518-4AP00-0AB0SIMATIC S7-1500， CPU 1518-4 PN/DP， *處理器，帶 工作存儲(chǔ)器 6 MB，用于 程序及 60MByte 用于數(shù)據(jù)， * 1 個(gè)接口：PROFINET IRT 帶雙端口交換機(jī)， * 2 接口：PROFINET RT， * 3 接口：以太網(wǎng)， * 4 個(gè)接口：PROFIBUS， 1 ns 比特性能表現(xiàn)， 需要 SIMATIC 存儲(chǔ)卡

• 何實(shí)現(xiàn)兩個(gè)S7-400之間的數(shù)據(jù)傳輸與交換

  在大型項(xiàng)目中，經(jīng)常會(huì)遇到從一個(gè)PLC將數(shù)據(jù)信息傳輸?shù)搅硪粋€(gè)PLC，以達(dá)到大型系統(tǒng)的分離控制，節(jié)約項(xiàng)目成本。詳細(xì)介紹如何實(shí)現(xiàn)兩個(gè)S7-400之間的數(shù)據(jù)傳輸與交換。新建一個(gè)項(xiàng)目進(jìn)行硬件組態(tài)插入兩個(gè) SIMATIC 400站點(diǎn)，然后對(duì)兩個(gè)站點(diǎn)進(jìn)行硬件組態(tài)，CPU分別選用CPU414-2DP，CPU416-2DP，通信模塊選用CP443-1，硬件組態(tài)畫面如圖所示：?設(shè)置兩個(gè)CP443-1模塊的參

• 過(guò)程映像/過(guò)程映像分區(qū)

  分配過(guò)程映像/過(guò)程映像分區(qū)簡(jiǎn)介使用過(guò)程映像的優(yōu)點(diǎn)在于，程序循環(huán)執(zhí)行過(guò)程中，訪問(wèn)的過(guò)程映像信號(hào)始終一致。 對(duì)于 S7-1500，可以選擇“自動(dòng)較新”(Update automatically) 或“PIP 1”（較高到“PIP 31”）。為自動(dòng)較新的過(guò)程映像區(qū)分配地址可在地址的分配過(guò)程（巡視窗口，“I/O 地址”區(qū)域）中定義過(guò)程映像。 如果模塊地址位于系統(tǒng)將在每個(gè)程序循環(huán)中自動(dòng)較新的過(guò)程映像區(qū)中，則

• WLAN **

  **在不能如預(yù)期那樣采用默認(rèn)設(shè)置來(lái)使用設(shè)備時(shí)，則只需更改此頁(yè)面上的設(shè)置。設(shè)置無(wú)線 (Radio)顯示可用的 WLAN 接口。信標(biāo)間隔 [ms] (Beacon Interval [ms])（**接入點(diǎn)模式）*接入點(diǎn)發(fā)送信標(biāo)的間隔 (40 - 1000 ms)。信標(biāo)是由接入點(diǎn)周期性發(fā)送的數(shù)據(jù)包，用于向客戶端通知接入點(diǎn)的存在。DTIM?（**接入點(diǎn)模式）DTIM 時(shí)間間隔 (1 - 15)