HESG447419R1机械设备卡件
（字10–11）本地PLC–存储器起始地址：字10和11确定本地PLC中从远程EGD交换机读取数据的起始地址。输入的值是从Word 9中指定的存储器类型和模式的PLC存储器开始的32位偏移量（从1开始）。字10包含偏移量的最低有效16位；字11包含偏移量的最高有效16位。根据指定的模式，此偏移量将以位、字节或字为单位。（例如，如果字9=16，字10,11=2，0，则起始地址将为%I9。）值的有效范围取决于PLC的内存范围。用户负责确保该区域足够大，可以包含请求的数据，而不会覆盖其他应用程序数据。PAC系统™ RX3i和RSTi EP TCP/IP以太网通信用户手册第6节GFK-2224Y 2019年8月编程EGD命令120字偏移值描述字11本地读取缓冲区参考表起始地址（最高有效字）字12远程签名EGD交换签名。当不使用签名时，PLC的值应为0。如果将使用EGD的运行模式存储，强烈建议使用签名。字13远程生产商ID（最低有效字）EGD生产商ID字14远程生产商标识（最高有效字）字15远程交换ID（最低重要字）EGE交换ID字16远程交换ID字（最高有效词）字17远程交换偏移字节偏移（从0开始）在应读取的交换中。字18读取长度0到1400字节范围内要读取的字节数。Word 19网络地址类型必须为1。指示将使用IP地址。对于IP地址，字20网络地址长度必须为4。不允许使用组ID（多播）。远程PLC的字21至字24 IP地址四个整数，指定为远程PLC的虚线十进制IP地址的每个字一个整数。不能是组IP地址。字25始终保留0存储器位置的进一步考虑12-25（字10–11）本地PLC–存储器起始地址：字10和11确定本地PLC中从远程EGD交换机读取数据的起始地址。输入的值是从Word 9中指定的存储器类型和模式的PLC存储器开始的32位偏移量（从1开始）。字10包含偏移量的最低有效16位；字11包含偏移量的最高有效16位。根据指定的模式，此偏移量将以位、字节或字为单位。（例如，如果字9=16，字10,11=2，0，则起始地址将为%I9。）值的有效范围取决于PLC的内存范围。用户负责（单词13–14）远程EGD交换–制作人ID：单词13和14包含远程EGD设备上所需交换的32位制作人ID。字13包含生产者ID的最低有效16位；字14包含最高有效16位。（单词15–16）远程EGD交换–交换ID：单词15和16包含远程EGD设备上所需交换的32位交换ID。字15包含交换ID的最低有效16位；字16包含最高有效的16位。（字17）远程EGD交换–交换数据偏移：字17包含要从远程EGD设备交换的数据部分读取的数据的基于0的字节偏移。（字18）远程EGD交换–交换数据长度：字18包含长度
(Words 10 – 11) Local PLC – Memory Starting Address: Words 10 and 11 determine the starting address in the local PLC where data is to be read from the remote EGD exchange. The value entered is the 32-bit offset (1-based) from the beginning of PLC memory for the memory type and mode specified in Word 9. Word 10 contains the least significant 16 bits of the offset; Word 11 contains the most significant 16 bits of the offset. This offset will be either in bits, bytes, or words depending on the mode specified. (For example, if Word 9=16 and Words 10,11 = 2, 0 then the starting address will be %I9.) Valid ranges of values depend on the PLC’s memory ranges. The user is responsible for assuring that this area is large enough to contain the requested data without overwriting other application data. PACSystems™ RX3i and RSTi-EP TCP/IP Ethernet Communications User Manual Section 6 GFK-2224Y August 2019 Programming EGD Commands 120 Word Offset Value Description Word 11 Local read buffer reference table starting address (most significant word) Word 12 Remote signature EGD Exchange signature. This should be 0 for PLCs when not using signatures. If run-mode store of EGD will be used, the use of signatures is highly recommended. Word 13 Remote Producer ID (least significant word) EGD Producer ID Word 14 Remote Producer ID (most significant word) Word 15 Remote Exchange ID (least significant word) EGD Exchange ID Word 16 Remote Exchange ID (most significant word) Word 17 Remote Exchange Offset Byte offset (0-based) in the exchange that should be read. Word 18 Read length Number of bytes to be read in the range 0 to 1400 bytes. Word 19 Network address type Must be 1. Indicates that an IP address will be used. Word 20 Network address length Must be 4 for IP address. Group ID (multicast) is not permitted. Word 21 to Word 24 IP Address of the remote PLC Four integers, specified as one integer per word of the dotted-decimal IP address of the remote PLC. May not be a group IP address. Word 25 Reserved Always 0 Further Consideration of Memory Locations 12-25 (Words 10 – 11) Local PLC – Memory Starting Address: Words 10 and 11 determine the starting address in the local PLC where data is to be read from the remote EGD exchange. The value entered is the 32-bit offset (1-based) from the beginning of PLC memory for the memory type and mode specified in Word 9. Word 10 contains the least significant 16 bits of the offset; Word 11 contains the most significant 16 bits of the offset. This offset will be either in bits, bytes, or words depending on the mode specified. (For example, if Word 9=16 and Words 10,11 = 2, 0 then the starting address will be %I9.) Valid ranges of values depend on the PLC’s memory ranges. The user is responsible for (Words 13 – 14) Remote EGD exchange – Producer ID: Words 13 and 14 contains the 32-bit Producer ID of the desired exchange at the remote EGD device. Word 13 contains the least significant 16 bits of the Producer ID; word 14 contains the most significant 16 bits. (Words 15 – 16) Remote EGD exchange – Exchange ID: Words 15 and 16 contains the 32-bit Exchange ID of the desired exchange at the remote EGD device. Word 15 contains the least significant 16 bits of the Exchange ID; word 16 contains the most significant 16 bits. (Word 17) Remote EGD exchange – Exchange Data Offset: Word 17 contains the 0-based byte offset of the data to be read from the data portion of the exchange at the remote EGD device. (Word 18) Remote EGD exchange – Exchange Data Length: Word 18 contains the length
