AH500 Programming Manual
6-318
API
Operand Function
1401 D TO P
m
1
,
m
2
,
m
3
,
S,
D,
n
Writing the data into the control
register in the special module
Device
X Y M S T C HC D L SM SR E PR K 16# “$” DF
m
2
m
3
Pulse instruction
16-bit instruction (13 steps)
32-bit instruction (13 steps)
AH500 AH500 AH500
Symbol:
m
1
：
Rack code Word/Double word
m
2
：
Slot code Word/Double word
m
3
：
Control register number Word/Double word
S
：
Data which is written into the
control register
Word/Double word
D
：
Device in which the error
code is stored
Word/Double word
n
：
Data length Word/Double word
Explanation:
1. Users can use this instruction to write the data in the AH500 series PLC into the control
register in the special module.
2. The operand m
1
should be within the range between 1 and 8. 1 represents a main rack, and
2~8 represent extension racks.
3. The operand m
2
should be within the range between 0 and 11. If the rack code is 1, the slot
code should be within the range between 0 and 11. If the rack code is within the range
between 2 and 8, the slot code should be within the range between 0 and 7.
4. The operand m
3
specifies the control register number.
5. When the instruction TO is executed, D is set to 0. When an error occurs, D is not set to 0.
Please refer to the additional remark below for more information about the error codes.
6. The operand n used in the 16-bit instruction should be within the range between 1 and 256,
and the operand n used in the 32-bit instruction should be within the range between 1 and 128.
7. Only the 32-bit instructions can use the 32-bit counter.
8. Special modules include analog I/O modules, network I/O modules, and position I/O modules.
9. When S is a decimal value or a hexadecimal value, n decimal values or n hexadecimal values
are transmitted to the I/O module. Suppose S is 16#0001 and n is 3. Three 16#0001s are
transmitted to the I/O module.
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