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6. Programming Information
Counter devices and registers (C./C)
The counter registers (C) are used for storing the count value of the counter (CNT) and the
The counter devices (C.) works as the output of the counter instructions.
It is possible to specify the C registers as retentive to retain their data in the event of a power failure. See section 5.3.
Data registers (D)
Functionally the data registers (D) are the same as auxiliary relay registers (RW) except that the D registers cannot be used as devices.
A part of the data registers are saved in the
Range of the data registers saved in the EEPROM:
T1 | T1S |
D0000 to D0511 | User specified range |
| starting with D0000 |
| (up to 2048 words) |
It is possible to specify the D registers as retentive to retain their data in the event of a power failure. See section 5.3.
Index registers (I, J, and K)
These index registers are used for indirect addressing for a register.
For example, if the value of I is 100 in the following register expression, it designates D0100. For details, refer to section 6.2.
I |
|
D0000 | D0100 if I=100 |
96 T1/T1S User’s Manual
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