8.1 PLC Connection 8-11
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
Example: Indirect device memory designation of “UW1F.31”
Device Memory TYPE Remarks
P (input/output relay) 00H PW as word device, input relay: read only
M (auxiliary relay) 01H MW as word device
L (link relay) 02H LW as word device
K (keep relay) 03H KW as word device
F (special relay) 04H FW as word device; FW0 to FW1023: read only
T (timer/current value) 05H
C (counter/current value) 06H
D(data register) 07H
TC (timer/contact) 09H
CC (counter/contact) 0AH
N (communication data register) 0BH
R (file register) 0CH RW as word device
ZR (file register) 0DH
U(analog data register) 0EH
UW as word device
*1
Example: U 3 1 . 31 . F
Bit address: 0 to F (hexadecimal)
Period
Special module No.: 0 to 31 (decimal)
Period
Slot No.: 0 to F (hexadecimal)
Base No.: 0 to 7 (decimal)
UW1F.31
B (Special module No.)
A (Base No. + Slot No.)
Address number = A converted to decimal 32 + B = 1F (HEX) 31 (DEC) 32 + 31 = 1023
Specify “1023” (DEC) for the address number.