IC695NIU001 PLUS 規(guī)格

如何檢查 PACSystem 中的強(qiáng)制值變量

描述

檢查 PACSysterm 中的強(qiáng)制值變量

解決

1. 在 PACSystem 中的所有 CPU 模塊以及 IC695NIU001 模塊上，都有一個(gè)名為 I/O FORCE 的 LED。一旦 ME 中至少有一個(gè)強(qiáng)制位，LED 就會(huì)亮起。
2. 在系統(tǒng)變量中，有一個(gè) %S0011。一旦 ME 中至少有一個(gè)強(qiáng)制位，該系統(tǒng)位將被設(shè)置。
3. 當(dāng)ME與PLC聯(lián)機(jī)時(shí)，我們通過(guò)右鍵單擊目標(biāo)名稱然后選擇報(bào)告在ME中找到控制器中的力報(bào)告。在這個(gè)報(bào)告中，我們可以找到強(qiáng)制變量的變量列表。
4. 在 SVC_REQ 塊中，可以使用命令 18 來(lái)查看 ME 中是否存在強(qiáng)制值。

注意：對(duì)于#OVR_PRE 參考，指示一個(gè)或多個(gè)覆蓋是否處于活動(dòng)狀態(tài)的%S00011 不受冗余CPU 支持且不應(yīng)使用。同時(shí)，冗余 CPU 上的 LED I/O FORCE 無(wú)法顯示是否存在一個(gè)或多個(gè)覆蓋。對(duì)于冗余系統(tǒng)，我們可以參考方法3和4來(lái)檢查強(qiáng)制值。

如何設(shè)置 EGD 通信的更新超時(shí)

描述

客戶應(yīng)在消費(fèi)交換中設(shè)置正確的更新超時(shí)值

解決

對(duì)于 RX3i 和 ENIU(IC695NIU001) 應(yīng)用，消費(fèi)者的更新超時(shí)應(yīng)至少是生產(chǎn)周期的 3 倍 + 2mSec。

請(qǐng)參閱 gfk-2439D 第 8-10 頁(yè)的表格，其中列出了建議的消耗超時(shí)值（注意所有超時(shí)值都是生成周期的 3x + 2mSec）。

筆記：

有關(guān) EGD 通信的更多詳細(xì)信息，請(qǐng)參閱 GFK-2224 PACS_Ethernet_Manual

有關(guān)以太網(wǎng)網(wǎng)絡(luò)接口單元的更多詳細(xì)信息，請(qǐng)參閱 GFK-2439 PACSystems RX3i 以太網(wǎng) NIU 手冊(cè)

與 IC695NIU001 進(jìn)行交換的超時(shí)值

描述

RX3i ENIU (IC695NIU001) 能夠?qū)⑵漭敵鲈O(shè)置為默認(rèn)值或在與控制器的通信丟失時(shí)保持其狀態(tài)。這是通過(guò)使用“控制”字從控制器產(chǎn)生的交換來(lái)完成的。控制字定義為：

解決

控制數(shù)據(jù)格式

以太網(wǎng) NIU 消耗的前 10 個(gè)字是控制數(shù)據(jù)。它們確定通信丟失時(shí)的輸出行為，并可用于清除故障。此外，如果有兩個(gè)控制器，則控制數(shù)據(jù)決定了它們中的哪一個(gè)將提供 I/O 站輸出。（有關(guān)更多信息，請(qǐng)參閱 GFK-2439）。

一旦通信丟失，NIU 根據(jù)控制器發(fā)送的控制字中設(shè)置的某些位來(lái)確定輸出的狀態(tài)：

在確定正在從活動(dòng)控制器接收數(shù)據(jù)后，以太網(wǎng) NIU 將離散和模擬輸出數(shù)據(jù)移動(dòng)到 %Q 和 %AQ 表中。如果沒(méi)有可用的活動(dòng)控制器，則 ENIU 根據(jù)來(lái)自一個(gè)活動(dòng)控制器的控制位的指示，將零、保持狀態(tài)或默認(rèn)值移動(dòng)到 %Q 和 %AQ 表中。

如果 NIU 的已消費(fèi)交換的 Timeout 值設(shè)置為 0，這意味著交換永遠(yuǎn)不會(huì)超時(shí)，則由控制字確定的狀態(tài)不會(huì)在 NIU 生效。

Troubleshooting

Troubleshooting IC695NIU001

Troubleshooting information is available on IC695NIU001's website page; it also includes a datasheet user-manual and a wiring diagram.

How to Check the Forced Value Variable in PACSystem

Description

Check the forced value variable in PACSysterm

Resolution

1. On all CPU modules in PACSystem, as well as the IC695NIU001 module, there is a LED named as I/O FORCE. And the LED will turn on once there is at least one forced bit in ME.
2. In the system variable, there is one %S0011. This system bit will be set once there is at least one forced bit in ME.
3. When ME goes online with PLC, we find a Forces in controller report in ME by right clicking target name and then choosing report. In this report, we can find out the variable list for the forced variable.
4. In the SVC_REQ block, the command 18 can be used to find out whether there is forced value in ME.

Note: For the #OVR_PRE reference, %S00011, which indicates whether one or more overrides is active, is not supported by the Redundant CPU and should not be used. At the same time, the LED I/O FORCE on the redundant CPU is not available to show whether there is one or more override. For the redundant system, we can just refer to the method 3 and 4 to check the forced value.

How To Set Update Timeout For EGD Communication

Description

Customer should set the proper Update Timeout value in the consumed exchange

Resolution

The Update Timeout of the Consumer should be at least 3x the Produced Period + 2mSec, for RX3i and ENIU(IC695NIU001) application.

Refer to gfk-2439D page 8-10 for a table listing the suggested consumed timeout values (notice all timeout values are 3x + 2mSec of the produced period).

Note:

More detail information about EGD communication, please refer to GFK-2224 PACS_Ethernet_Manual

More detail information about Ethernet Network Interface Unit, please refer to GFK-2439 PACSystems RX3i Ethernet NIU Manual

Timeout Value for Consumed Exchange with IC695NIU001

Description

The RX3i ENIU (IC695NIU001) has the ability to set its outputs to Defaults or to hold their last states when communications with the controller(s) is lost. This is done via the produced exchange from the controller(s) by using "Control" words. The Control Words are defined as:

Resolution

Control Data Format

The first 10 words of data consumed by the Ethernet NIU are control data. They determine the behavior of outputs if communications are lost, and can be used to clear faults. In addition, if there are two controllers, the control data determines which of them will supply the I/O Station outputs. (See GFK-2439 for more info).

The NIU determines the states of the outputs based on certain bits being set in the Control Word(s) being sent from the Controller(s) once communications are lost:

The Ethernet NIU moves the discrete and analog output data to the %Q and %AQ tables after determining that data is being received from an active controller. If no active controller is available then ENIU moves zeros, hold last state, or default values to the %Q and %AQ tables as directed by the control bit from the last active controller.

If the Timeout value for the consumed exchange(S) at the NIU are set to a value of 0, this means that the exchange never times out then the state as determined by the Control Word does not take effect at the NIU.