DSDI110AV1運(yùn)動(dòng)控制模塊
掃描在總線控制器的掃描選項(xiàng)卡上，您可以使用最多32個(gè)字符。其余參數(shù)在FIP網(wǎng)絡(luò)配置中設(shè)置工具此處不可編輯。
每個(gè)CPU掃描集都綁定到一個(gè)或多個(gè)已使用配置的時(shí)隙網(wǎng)絡(luò)配置工具。在網(wǎng)絡(luò)配置工具中定義的時(shí)隙用于分組類似的數(shù)據(jù)，如離散輸入及其驗(yàn)證器。
通過CPU配置掃描集。它們控制PLC CPU如何將數(shù)據(jù)掃描到和來自總線控制器（和其他設(shè)備）。在90–70系列PLC中，F(xiàn)IP總線控制器掃描進(jìn)出FIP的I/O數(shù)據(jù)
網(wǎng)絡(luò)此掃描可以配置為與FIP網(wǎng)絡(luò)。
PLC CPU掃描進(jìn)出FIP總線控制器的I/O數(shù)據(jù)。同樣，PLC CPU掃描可以被配置為與FIP總線控制器同步或異步。掃描集在PLC CPU中，I/O數(shù)據(jù)分組為掃描集。FIP總線控制器可以交換最多32個(gè)掃描集的數(shù)據(jù)。
掃描集是輸入和/或輸出數(shù)據(jù)的集合，用于滿足PLC應(yīng)用程序。例如，PLC應(yīng)用程序可能需要處理所有離散輸入和輸出。另一個(gè)PLC應(yīng)用程序可能需要：僅處理模擬輸入和輸出。
單個(gè)掃描集可能包含來自各種源的I/O數(shù)據(jù)。
例如掃描集可以將來自一個(gè)FIP總線控制器的離散輸入和輸出數(shù)據(jù)與來自另一FIP總線控制器的輸入/輸出數(shù)據(jù)，或來自PLC中本地輸入/輸出模塊的輸入/輸入數(shù)據(jù)支架
PLC中有兩種類型的掃描集：異步和同步。異步掃描集由PLC CPU掃描，不與任何同步FIP總線控制器。例如，可以對(duì)每個(gè)PLC掃描異步掃描集掃描，每20次PLC掃描等。只有當(dāng)FIP總線控制器
已經(jīng)消耗了來自網(wǎng)絡(luò)的輸入數(shù)據(jù)。FIP總線控制器通知：（觸發(fā)）數(shù)據(jù)到達(dá)的PLC CPU，然后PLC CPU
安排應(yīng)用程序并掃描輸入數(shù)據(jù)。當(dāng)申請(qǐng)程序完成后，PLC CPU掃描輸出數(shù)據(jù)。這樣，PLC
應(yīng)用程序被稱為與FIP網(wǎng)絡(luò)同步。FIP巴士控制器可以交換多達(dá)15個(gè)同步掃描集的數(shù)據(jù)。
PLC CPU可同時(shí)配置同步和異步掃描集。對(duì)于每個(gè)同步掃描集，需要指定
必須觸發(fā)掃描集的特定FIP總線控制器。同步掃描集可以僅由一個(gè)FBC觸發(fā)。異步掃描集不需要或不允許觸發(fā)器的規(guī)格。
Scanning
On the Bus Controller’s Scanning tab, you can enter a description of the scan set using
up to 32 characters. The rest of the parameters are set in the FIP Network Configuration
tool. They are not editable here.
Each CPU Scan Set is tied to one or more time slots that have been configured using the
Network Configuration tool.The time slots, which are defined in the Network Configuration tool, are used to group
similar data, such as discrete inputs and their validators.
Scan sets are configured via the CPU. They control how the PLC CPU scans data to and
from the bus controller (and other devices).In the Series 90–70 PLC, the FIP Bus Controller scans I/O data to and from the FIP
network. This scanning may be configured to be synchronous or asynchronous to the
FIP network.
The PLC CPU scans I/O data to and from the FIP Bus Controller. Likewise, the PLC CPU
scan may be configured to be synchronous or asynchronous to the FIP Bus Controller.
Scan Sets
In the PLC CPU, I/O data is grouped into scan sets. The FIP Bus Controller can exchange
data with up to 32 scan sets.
A scan set is a collection of input and/or output data that serves a specific I/O need of a
PLC application program. For example, a PLC application program may need to process
all of the discrete inputs and outputs. Another PLC application program may need to
process only the analog inputs and outputs.
An individual scan set may contain I/O data from a variety of sources. For example, a
scan set might combine discrete input and output data from one FIP Bus Controller with
I/O data from another FIP Bus Controller, or I/O data from a local I/O module in the PLC
rack.
There are two types of scan sets in the PLC: asynchronous and synchronous.
Asynchronous scan sets are scanned by the PLC CPU without any synchronization with
the FIP Bus Controller. For example, asynchronous scan sets may be scanned every PLC
sweep, every 20 PLC sweeps, etc.
Synchronous scan sets are scanned by the PLC CPU only when the FIP Bus Controller
has consumed the input data from the network. The FIP Bus Controller informs
(triggers) the PLC CPU of the arrival of the data and only then does the PLC CPU
schedule the application program and scan the input data. When the application
program completes, the PLC CPU scans the output data. In this manner, the PLC
application program is said to be synchronized with the FIP network. The FIP Bus
Controller can exchange data for up to 15 synchronous scan sets.
The PLC CPU may simultaneously be configured with both synchronous and
asynchronous scan sets. For each synchronous scan set it is necessary to specify the
particular FIP Bus Controller which must trigger the scan set. A synchronous scan set
may be triggered by only one FBC. Asynchronous scan sets do not require or permit the
specification of a trigger.
