HIEE410455P104输出卡件
3电流/电压输出通道7电流/电压输入28 11通道3接地/回流通道7接地/回路29 12无连接无连接30 13无连接31 14通道4电流/电压输出来通道8电流/电压出口32 15通道4接地/回送通道8接地/回流33 16无连接无接34 17外部+电源（+24V输入）无连接35 18外部-电源电源（+24V Rtn）无连接36每个通道可单独配置为作为电压输出或电流输出运行，而不是同时运行。PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块489 V电流无连接输出通道1输出通道1返回无连接电压输出无连接通道5输出通道5返回无连接1 2 3 4 5 6。17 18 19 20 21 22 23 24 . . . 36 I+_+_ 24VDC+-图310：现场接线：ALG808 PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月带HART通信的模拟模块491第11节：带HART通信模拟模块本章介绍提供HART®通信并与PACSystems RX3i控制器兼容的非隔离模拟模块。▪ PACSystems RX3i的HART通信概述（第11.1节）▪ 模块说明、规格、配置参数和接线信息：▪ 带HART的模拟输入模块16-/8通道电流/电压：IC695ALG626（第11.1.4节）▪ 带HART的模拟输入模块8-/4通道电流/电压：IC695ALG628（第11.1.4节）▪ 带HART的模拟输出模块8通道电流/电压：IC695ALG728（第11.3节）▪ HART参考数据（第11.5节）▪ HART模块的COMMREQ（第11.6节）▪ 应用程序的HART功能块（第11.7节）▪ 将HART数据转换为RX3i格式（第11.8节）11.1 PACSystems的HART通信概述RX3i HART（高速可寻址远程传感器）协议是HART通信基金会成员拥有的开放标准。HART将4-20mA电流回路同时运行与使用相同信号的数字通信相结合。它在正常的4至20mA电流回路信号上施加一个频移交流信号。模拟和数字通信信号都使用相同的一组电线，而没有信号中断。有关HART的更多信息，请参阅HART通信基金会（www.hartcomm.org）发布的《HART应用指南》。对于PACSystems RX3i，点对点HART通信由本章所述的三个模拟模块提供。模块IC695ALG626、ALG628和ALG728上的每个信道都可以利用HART 5.0协议与HART现场设备通信。HART设备必须为5.0版或更高版本；早期HART版本使用RX3i模拟HART模块不支持的不同消息格式。为了利用HART通信，必须按照本章所述为HART操作和4-20mA电流范围配置信道。在模块运行期间，4-20mA通道信号HART®是美国德克萨斯州奥斯汀市HART通信基金会的注册商标。本文件或本文件引用的任何文件中使用的术语HART均意味着注册商标。PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月带HART通信的模拟模块492传达一个过程变量。其他过程变量、配置数据和设备数据使用HART协议进行数字传输。4-20mA信号不受HART信号的影响。自RX3i CPU固件8.50版起生效，该产品线还支持HART直通功能，如PACSystems HART直通用户手册GFK-2929所述。11.1.1 RX3i HART模块操作HART是主从通信协议。具有HART通信的RX3i模拟模块充当单个HART现场设备的主控器。它允许存在辅助主机，通常是可选的手持设备。
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.
