Delta AH500 - 5.2.13 Special Data Registers; 5.2.14 Link Registers; 5.2.15 Index Registers

Chapter 5 Devices and Assigning Addresses
5-11
5.2.13 Special Data Registers
Every special data register has its definition and specific function. Please refer to section 2.2.14 in AH500
Programming Manual for more information.
5.2.14 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 11 for more information.
The link registers L0~L65535 add up to 65536 words. (The device range varies with the model selected.)
Besides, the link register can be used as the general auxiliary register.
5.2.15 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 4.2 in AH500 Programming Manual for more information about the usage of index
registers.