AH500 Programming Manual Please refer to section 11.2 in AH500 Operation Manual for more information related to the Ether Link. 2.2.17 Link Registers The link register is mainly used in the PLC Link or the Ether Link. When the data exchange occurs between the AH500 series programmable logic controllers, the link register can be used as the buffer. Please refer to chapter 12 in AH500 Operation Manual for more information. The link registers L0~L65535 add up to 65536 words. Besides, the link register can be used as the general auxiliary register. 2.2.18 Index Registers The index register is the 16-bit data register.
It is like the general register in that the data can be read from it and written into it. However, it is mainly used as the index register. The range of index registers is E0~E13. Please refer to section 4.3 for more information related to the index register. 2-88 Device Function Description SR2047 IP address of block 128 Low eight bits in the IP address of block 128 Example: If the remote IP address is 192.168.1.100, the value in the register is 16#0164.