48
DM Area Allocation in Linear and Circular Modes
Section 5-2
5-2
DM Area Allocation in Linear and Circular Modes
The section explains DM and IR bit allocation in linear and circular modes.
DM Allocation
Word
Bit
Function
m
00 to 03 Operating mode (1: Linear mode; 2: Circular mode)
04 to 07 Forced external output setting (0: Disabled; 1: Enabled)
08 to 11 External output (0: NPN; 1:PNP)
12 to 15 Counter values and ranges (0: BCD; 1: Hexadecimal)
m+1
00 to 03
04 to 07 Not used.
08 to 15 Reset modes 00 to 11 (Mode 0 to mode 11)
m+2
00 to 15 Counter 2 input types and counter reset conditions:
Refer to the information on counter 1 input types and counter reset conditions.
m+3
00 to 15 First word number of PC storing transfer data and number of transfer data blocks
Transfer data can be stored in consecutive words in a data area of the PC, which can be used to
change the upper and lower limits of the count value and present counter value of the Unit.
A transfer data block uses six words. Three transfer data blocks (i.e., 18-word data) can be trans-
ferred to change the upper and lower limits of the count value. On the other hand, a transfer data
block (i.e., 6-word data) can be transferred to change the present counter value.
Be sure to create PC data in consecutive words in the same area.
Counter 1 input types and counter reset conditions:
Input types
0: x 1
1: x 2
2: x 4
3: Up and down pulses input
4: Pulse and direction input
Offset phase inputs (counter 1)
Содержание C200H-CT021
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