IC695NIU001 PLUS 规格

如何检查 PACSystem 中的强制值变量

描述

检查 PACSysterm 中的强制值变量

解决

1. 在 PACSystem 中的所有 CPU 模块以及 IC695NIU001 模块上，都有一个名为 I/O FORCE 的 LED。一旦 ME 中至少有一个强制位，LED 就会亮起。
2. 在系统变量中，有一个 %S0011。一旦 ME 中至少有一个强制位，该系统位将被设置。
3. 当ME与PLC联机时，我们通过右键单击目标名称然后选择报告在ME中找到控制器中的力报告。在这个报告中，我们可以找到强制变量的变量列表。
4. 在 SVC_REQ 块中，可以使用命令 18 来查看 ME 中是否存在强制值。

注意：对于#OVR_PRE 参考，指示一个或多个覆盖是否处于活动状态的%S00011 不受冗余CPU 支持且不应使用。同时，冗余 CPU 上的 LED I/O FORCE 无法显示是否存在一个或多个覆盖。对于冗余系统，我们可以参考方法3和4来检查强制值。

如何设置 EGD 通信的更新超时

描述

客户应在消费交换中设置正确的更新超时值

解决

对于 RX3i 和 ENIU(IC695NIU001) 应用，消费者的更新超时应至少是生产周期的 3 倍 + 2mSec。

请参阅 gfk-2439D 第 8-10 页的表格，其中列出了建议的消耗超时值（注意所有超时值都是生成周期的 3x + 2mSec）。

笔记：

有关 EGD 通信的更多详细信息，请参阅 GFK-2224 PACS_Ethernet_Manual

有关以太网网络接口单元的更多详细信息，请参阅 GFK-2439 PACSystems RX3i 以太网 NIU 手册

与 IC695NIU001 进行交换的超时值

描述

RX3i ENIU (IC695NIU001) 能够将其输出设置为默认值或在与控制器的通信丢失时保持其状态。这是通过使用“控制”字从控制器产生的交换来完成的。控制字定义为：

解决

控制数据格式

以太网 NIU 消耗的前 10 个字是控制数据。它们确定通信丢失时的输出行为，并可用于清除故障。此外，如果有两个控制器，则控制数据决定了它们中的哪一个将提供 I/O 站输出。（有关更多信息，请参阅 GFK-2439）。

一旦通信丢失，NIU 根据控制器发送的控制字中设置的某些位来确定输出的状态：

在确定正在从活动控制器接收数据后，以太网 NIU 将离散和模拟输出数据移动到 %Q 和 %AQ 表中。如果没有可用的活动控制器，则 ENIU 根据来自一个活动控制器的控制位的指示，将零、保持状态或默认值移动到 %Q 和 %AQ 表中。

如果 NIU 的已消费交换的 Timeout 值设置为 0，这意味着交换永远不会超时，则由控制字确定的状态不会在 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.