Special Register Sd; Index Register Z - Mitsubishi Electric MELDAS C6 Programming Manual

5.3.10 Special Register SD

(1) Special register SD is a data register that the applications are fixed as 1-second counter, etc. Do
not use even a part not used currently in SD0 to SD127 for other purpose such as temporary
memory.
Special register SD
(a) The register is cleared when the power is turned OFF.
(b) There is no limit to the No. that can be used in the program.
(c) The special register No. is expressed with a hexadecimal.

5.3.11 Index Register Z

(1) Z index register is available.
(2) The index register is used as ornaments for the device.
159
165
(3) The index register has a 1-point 16-bit configuration, and can be read and written in 16-bit units.
(4) The data stored in the index register is cleared when the power is turned OFF.
(5) Values that can be stored: Decimal -32768 to 32767
(Note1) The display of the index registers Z0 is as shown below.
(Note2) Don't use index resistor Z0, Z1 in high-speed program processing because the system
use these resistor in some function commands. If the resistor is used, operation of main
processing function commands may be unfixed.
5. Explanation of Devices
5.3 Detailed Explanation of Devices
MOV
MOV K4X0 D5Z0
Hexadecimal 0 to FFFF
K3
MOV
K4
MOV X0
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K3 Z0
D5Z Indicates D (5+Z) = D8
Z0
Z0
D5