HIEE410455P104輸出卡件
3電流/電壓輸出通道7電流/電壓輸入28 11通道3接地/回流通道7接地/回路29 12無連接無連接30 13無連接31 14通道4電流/電壓輸出來通道8電流/電壓出口32 15通道4接地/回送通道8接地/回流33 16無連接無接34 17外部+電源（+24V輸入）無連接35 18外部-電源電源（+24V Rtn）無連接36每個通道可單獨配置為作為電壓輸出或電流輸出運行，而不是同時運行。PACSystems*RX3i系統(tǒng)手冊第12節(jié)GFK-2314T 2019年9月模擬輸出模塊489 V電流無連接輸出通道1輸出通道1返回?zé)o連接電壓輸出無連接通道5輸出通道5返回?zé)o連接1 2 3 4 5 6。17 18 19 20 21 22 23 24 . . . 36 I+_+_ 24VDC+-圖310：現(xiàn)場接線：ALG808 PACSystems*RX3i系統(tǒng)手冊第12節(jié)GFK-2314T 2019年9月帶HART通信的模擬模塊491第11節(jié)：帶HART通信模擬模塊本章介紹提供HART?通信并與PACSystems RX3i控制器兼容的非隔離模擬模塊。? PACSystems RX3i的HART通信概述（第11.1節(jié)）? 模塊說明、規(guī)格、配置參數(shù)和接線信息：? 帶HART的模擬輸入模塊16-/8通道電流/電壓：IC695ALG626（第11.1.4節(jié)）? 帶HART的模擬輸入模塊8-/4通道電流/電壓：IC695ALG628（第11.1.4節(jié)）? 帶HART的模擬輸出模塊8通道電流/電壓：IC695ALG728（第11.3節(jié)）? HART參考數(shù)據(jù)（第11.5節(jié)）? HART模塊的COMMREQ（第11.6節(jié)）? 應(yīng)用程序的HART功能塊（第11.7節(jié)）? 將HART數(shù)據(jù)轉(zhuǎn)換為RX3i格式（第11.8節(jié)）11.1 PACSystems的HART通信概述RX3i HART（高速可尋址遠程傳感器）協(xié)議是HART通信基金會成員擁有的開放標準。HART將4-20mA電流回路同時運行與使用相同信號的數(shù)字通信相結(jié)合。它在正常的4至20mA電流回路信號上施加一個頻移交流信號。模擬和數(shù)字通信信號都使用相同的一組電線，而沒有信號中斷。有關(guān)HART的更多信息，請參閱HART通信基金會（www.hartcomm.org）發(fā)布的《HART應(yīng)用指南》。對于PACSystems RX3i，點對點HART通信由本章所述的三個模擬模塊提供。模塊IC695ALG626、ALG628和ALG728上的每個信道都可以利用HART 5.0協(xié)議與HART現(xiàn)場設(shè)備通信。HART設(shè)備必須為5.0版或更高版本；早期HART版本使用RX3i模擬HART模塊不支持的不同消息格式。為了利用HART通信，必須按照本章所述為HART操作和4-20mA電流范圍配置信道。在模塊運行期間，4-20mA通道信號HART?是美國德克薩斯州奧斯汀市HART通信基金會的注冊商標。本文件或本文件引用的任何文件中使用的術(shù)語HART均意味著注冊商標。PACSystems*RX3i系統(tǒng)手冊第12節(jié)GFK-2314T 2019年9月帶HART通信的模擬模塊492傳達一個過程變量。其他過程變量、配置數(shù)據(jù)和設(shè)備數(shù)據(jù)使用HART協(xié)議進行數(shù)字傳輸。4-20mA信號不受HART信號的影響。自RX3i CPU固件8.50版起生效，該產(chǎn)品線還支持HART直通功能，如PACSystems HART直通用戶手冊GFK-2929所述。11.1.1 RX3i HART模塊操作HART是主從通信協(xié)議。具有HART通信的RX3i模擬模塊充當(dāng)單個HART現(xiàn)場設(shè)備的主控器。它允許存在輔助主機，通常是可選的手持設(shè)備。
3 Current/Voltage Output Channel 7 Current/Voltage Output 28 11 Channel 3 Ground/Return Channel 7 Ground/Return 29 12 No Connect No Connect 30 13 No Connect No Connect 31 14 Channel 4 Current/Voltage Output Channel 8 Current/Voltage Output 32 15 Channel 4 Ground/Return Channel 8 Ground/Return 33 16 No Connect No Connect 34 17 External + Power Supply (+24V In) No Connect 35 18 External - Power Supply (+24V Rtn) No Connect 36 Each channel can be individually configured to operate as a voltage output or a current output - not both simultaneously. PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 489 V Current No Connect Output Channel 1 Output Channel 1 Return No Connect Voltage Output No Connect Channel 5 Output Channel 5 Return No Connect 1 2 3 4 5 6 . 17 18 19 20 21 22 23 24 . . . 36 I + _ + _ 24VDC + - Figure 310: Field Wiring: ALG808 PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Modules with HART Communications 491 Section 11: Analog Modules with HART Communications This chapter describes Non-Isolated Analog modules that provide HART? communications and are compatible with PACSystems RX3i controllers. ? Overview of HART Communications for PACSystems RX3i (Section 11.1) ? Module Descriptions, specifications, configuration parameters, and wiring information for: ? Analog Input Module 16-/8-Channel Current/Voltage with HART: IC695ALG626 (Section 11.1.4) ? Analog Input Module 8-/4-Channel Current/Voltage with HART: IC695ALG628 (Section 11.1.4) ? Analog Output Module 8-Channel Current/Voltage with HART: IC695ALG728 (Section 11.3) ? HART Reference Data (Section 11.5) ? COMMREQs for HART Modules (Section 11.6) ? HART Function Blocks for the Application Program (Section 11.7) ? Converting HART Data to / from RX3i Format (Section 11.8) 11.1 Overview of HART Communications for PACSystems RX3i HART (Highway Addressable Remote Transducer) protocol is an open standard owned by the members of the HART Communication Foundation. HART combines simultaneous 4-20mA current loop operation with digital communications using the same signal. It imposes a frequency-shifted AC signal on the normal 4 to 20mA current loop signal. Both analog and digital communications signals utilize the same set of wires without signal disruptions. For more information about HART, refer to the HART Application Guide, published by the HART Communication Foundation (www.hartcomm.org). For PACSystems RX3i, point-to-point HART communications are provided by the three analog modules described in this chapter. Each channel on modules IC695ALG626, ALG628, and ALG728 can utilize HART 5.0 protocol to communicate with HART field devices. The HART devices must be revision 5.0 or later; earlier HART versions use a different messaging format that is not supported by the RX3i analog HART modules. To utilize HART communications, a channel must be configured for HART operation as described in this chapter, and for 4-20mA current range. During module operation, the 4-20mA channel signal HART? is a registered trademark of the HART Communication Foundation of Austin, Texas USA. Any use of the term HART hereafter in this document, or any document referenced by this document, implies the registered trademark. PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Modules with HART Communications 492 communicates one process variable. Additional process variables, configuration data, and device data are transferred digitally using the HART protocol. The 4-20mA signal is not affected by the HART signal. Effective with Release 8.50 of the RX3i CPU firmware, the product line also supports HART Pass Through functionality, which is described in the PACSystems HART Pass Through User Manual, GFK-2929. 11.1.1 RX3i HART Module Operation HART is a master-slave communications protocol. An RX3i analog module with HART communications acts as the Primary Master for a single HART field device. It tolerates the presence of a Secondary Master, usually an optional handheld device.
