8-6  8. LS
Available Device Memory
The available setting range of device memory varies depending on the PLC model. Be sure to set within the range available for 
the PLC to be used. Use [TYPE] when assigning indirect device memory for macro programs.
*1 The assigned device memory is expressed as shown 
on the right when editing the screen.
Indirect Device Memory Designation
 Using Q or I device memory
Device Memory TYPE Remarks
M (internal memory) 00H MW as word device
Q(output) 01H
QW as word device 
*1
I(input) 02H
IW as word device 
*1
QW1.7.3
C (Address)
B (Slot No.)
A (Base No.)
Address number = A  32 + B  4 + C = 1  32 + 7  4 + 3 = 63
Specify “63” (DEC) for the address number.
- Word access
Address number = A  32 + B  4 + (quotient of C divided by 16)
= 1  32 + 7  4 + (63  16) = 63
Bit designation = remainder when C is divided by 16 = (63  16) = 15
Specify “63” (DEC) for the address number, and “15” (DEC) for the bit designation.
- Bit access
QW1.7.63
C (Address)
B (Slot No.)
A (Base No.)