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Honeywell SPS5710-2-LF工控模塊
CRU320現(xiàn)在支持PACSystems RX3i熱網(wǎng)絡(luò)中的255個(gè)PROFINET I/O設(shè)備備用CPU冗余系統(tǒng)。PROFINET操作使用PROFINET I/O控制器模塊IC695PNC001。冗余操作符合PROFINET V2.3S-2型系統(tǒng)冗余。
中描述了HSB CPU冗余系統(tǒng)中的PROFINET I/O操作
以下用戶手冊(cè)：
? PACSystems熱備CPU冗余用戶手冊(cè)，GFK-2308K
? PACSystems RX3i PROFINET IO控制器用戶手冊(cè)，GFK-2571D增加了對(duì)IC695RMX228 128 MB反射式內(nèi)存模塊的支持收發(fā)器。
增加了讀取IC695CMX128、IC695RMX128和IC695MMX128的反射存儲(chǔ)器狀態(tài)位的能力，以及IC695RMX228（反射存儲(chǔ)器模塊）。解決串行I/O讀取字節(jié)COMMREQ（4402）始終返回錯(cuò)誤的問題發(fā)生錯(cuò)誤時(shí)的代碼100Dh，無論錯(cuò)誤如何。當(dāng)CPU首次通電時(shí)，RS-485端口（COM 2）與變送器一起通電啟用。一旦CPU OK LED亮起，變送器將進(jìn)入高阻抗?fàn)顟B(tài)照亮。由于這需要有限的時(shí)間，如果COM 2端口是用于多點(diǎn)通信，其他設(shè)備通過wiredOR連接共享同一電纜。如果其中一個(gè)設(shè)備在CPU通電時(shí)正在進(jìn)行通信上，這些通信有可能中斷，直到CPU將RS-485端口進(jìn)入高阻抗?fàn)顟B(tài)。在以前的版本中，CPU允許配置位內(nèi)存中的COMMREQ狀態(tài)字非字節(jié)對(duì)齊邊界上的類型。即使給定的引用沒有被字節(jié)對(duì)齊，固件也會(huì)在更新狀態(tài)之前將其調(diào)整到下一個(gè)最低字節(jié)邊界位，覆蓋對(duì)齊邊界和指定位置之間的位。
為確保應(yīng)用程序按預(yù)期運(yùn)行，3.50版要求配置位存儲(chǔ)器類型中的COMMREQ狀態(tài)字將進(jìn)行字節(jié)對(duì)齊。例如，如果用戶指定的狀態(tài)位位置為%I3，CPU將狀態(tài)位位置與%I1對(duì)齊。版本3.50固件要求用戶指定適當(dāng)?shù)膶?duì)齊地址（%I1），以確保所使用的位置適合其應(yīng)用。請(qǐng)注意，實(shí)際參考位置未更改使用的，但現(xiàn)在為用戶明確說明。PACSystems CPU接收來自多個(gè)系統(tǒng)的在停止和運(yùn)行模式之間切換的請(qǐng)求不同的來源。這些包括（但不限于）Proficy機(jī)器版、HMI、用戶以及運(yùn)行/停止開關(guān)。因?yàn)槟Ｊ接性S多潛在的來源
更改請(qǐng)求，可以接收新的模式更改請(qǐng)求
而另一個(gè)模式更改請(qǐng)求已經(jīng)正在進(jìn)行中。發(fā)生這種情況時(shí)，CPU評(píng)估新模式更改的優(yōu)先級(jí)請(qǐng)求正在進(jìn)行的模式更改。如果新模式更改請(qǐng)求具有與正在進(jìn)行的優(yōu)先級(jí)相等或更高，CPU將轉(zhuǎn)換到新的模式，而不是正在進(jìn)行的模式。但是，如果新模式更改請(qǐng)求具有較低的優(yōu)先級(jí)高于正在進(jìn)行的優(yōu)先級(jí)，新模式請(qǐng)求被丟棄，CPU完成正在進(jìn)行的模式更改。掃描模式優(yōu)先級(jí)為（從最高到最低優(yōu)先級(jí)）：停止-停止、停止故障、停止和運(yùn)行。（注意：IO啟用/禁用狀態(tài)不是模式優(yōu)先級(jí)評(píng)估的一部分。）例如，CPU已啟用運(yùn)行IO模式，執(zhí)行服務(wù)請(qǐng)求13功能塊，將CPU置于停止IO禁用模式。在完成到停止IO禁用的轉(zhuǎn)換之前，運(yùn)行/停止開關(guān)從啟用運(yùn)行IO更改為禁用運(yùn)行IO。在這種情況下，CPU忽略來自運(yùn)行/停止開關(guān)的新請(qǐng)求進(jìn)入運(yùn)行IO禁用模式，因?yàn)椋阂言谔幚磙D(zhuǎn)到停止IO禁用模式的請(qǐng)求，而停止模式具有更高的值優(yōu)先于運(yùn)行模式。
The CRU320 now supports 255 PROFINET I/O Devices in a PACSystems RX3i Hot
Standby CPU Redundancy system. PROFINET operation uses the PROFINET I/O
Controller module IC695PNC001. Redundant operation conforms to PROFINET V2.3
Type S-2 System Redundancy.
PROFINET I/O operation in a HSB CPU Redundancy system is described in the
following user manuals:
? PACSystems Hot Standby CPU Redundancy User’s Manual, GFK-2308K
? PACSystems RX3i PROFINET IO Controller User Manual, GFK-2571D Adds support for IC695RMX228 128 MB Reflective Memory Module with Single Mode
Transceiver.
Adds ability to read reflective memory status bits for IC695CMX128, IC695RMX128,
and IC695RMX228 (reflective memory modules).
Resolves issue of Serial I/O Read Bytes COMMREQ (4402) always returning error
code 100Dh in the event of an error, regardless of the error.When the CPU is first powered on, the RS-485 port (COM 2) powers up with the transmitter
enabled. The transmitter is placed into a high-impedance state once the CPU OK LED is
illuminated. Since that takes a finite amount of time, this could be an issue if the COM 2 port is
being used in multi-drop communications, and other devices share the same cable via wiredOR connections. If one of those devices is actively communicating when the CPU is powered
up, there is a potential for those communications to be disrupted until the CPU puts the
RS-485 port into high-impedance state.In previous releases, the CPU allowed configuration of COMMREQ Status Words in bit memory
types on a non-byte-aligned boundary. Even though the given reference was not bytealigned, the firmware would adjust it the next-lowest byte boundary before updating status
bits, overwriting the bits between the alignment boundary and specified location.
To ensure that the application operates as expected, release 3.50 requires configuration of
COMMREQ Status Words in bit memory types to be byte-aligned. For example if the user
specified status bit location of %I3, the CPU aligns the status bit location at %I1. Release 3.50
firmware requires the user to specify the appropriate aligned address (%I1) to ensure that the
utilized location is appropriate for their application. Note that the actual reference location
utilized is not changed, but now is explicitly stated for the user.The PACSystems CPU receives requests to change between STOP and RUN mode from many
different sources. These include (but are not limited to) Proficy Machine Edition, HMIs, the user
application, and the RUN/STOP switch. Since there are many potential sources for a mode
change request, it is possible to receive a new mode change request while another is already
in progress. When this occurs, the CPU evaluates the priority of the new mode change
request with the mode change that is in progress. If the new mode change request has an
equal or higher priority than the one already in progress, the CPU transitions to the new
mode instead of the one in progress. If, however, the new mode change request has a lower
priority than the one in progress, the new mode request is discarded and the CPU completes
the mode change that is in progress. The sweep mode priorities are (listed from highest to
lowest priority): STOP HALT, STOP FAULT, STOP, and RUN. (Note: The IO ENABLED/DISABLED
state is not part of the mode priority evaluation.) For example, a CPU is in RUN IO ENABLED
mode and a Service Request 13 function block is executed to place the CPU into STOP IO
DISABLED mode. Before the transition to STOP IO DISABLED is completed, the RUN/STOP
switch is changed from RUN IO ENABLED to RUN IO DISABLED. In this case, the CPU ignores
the new request from the RUN/STOP switch to go to RUN IO DISABLED mode because it is
already processing a request to go to STOP IO DISABLED mode and STOP mode has a higher
priority than RUN mode.
