9.1 PLC Connection 9-51
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.
Specifying the access CPU
In addition to the device type and address, an access CPU must be specified. The assigned device memory is expressed as
shown below when editing the screen.
* The multi CPU unit numbers are assigned as shown below:
- For Q170MCPU
Management CPU: Motion CPU
Multi CPU 1: Sequencer CPU
Multi CPU 2: Motion CPU
- For Q172DCPU-S1/Q173DCPU-S1
Management CPU: Motion CPU
Multi CPU 1 to 4: Determined according to the slot position of the CPU
Indirect Device Memory Designation
* Specify the access CPU number in the expansion code.
Management CPU: 0 Multi CPU: 1 or 4
Device Memory TYPE Remarks
D(data register) 00H
W(link register) 01H
R (file register) 02H Available only for the sequencer CPU
TN (timer/current value) 03H Available only for the sequencer CPU
CN (counter/current value) 04H Available only for the sequencer CPU
M (internal relay) 06H
L (latch relay) 07H Available only for the sequencer CPU
B (link relay) 08H
X(input) 09H
Y(output) 0AH
TS (timer/contact) 0BH Available only for the sequencer CPU
TC (timer/coil) 0CH Available only for the sequencer CPU
CS (counter/contact) 0DH Available only for the sequencer CPU
CC (counter/coil) 0EH Available only for the sequencer CPU
SD (special register) 10H
SM (special relay) 11H
SB (special link relay) 12H Available only for the sequencer CPU
SW (special link register) 13H Available only for the sequencer CPU
ZR (file register/for continuous access) 14H Available only for the sequencer CPU
F (annunciator) 15H
SS (totalizing timer/contact) 16H Available only for the sequencer CPU
SC (totalizing timer/coil) 17H Available only for the sequencer CPU
SN (totalizing timer/current value) 18H Available only for the sequencer CPU
Z (index register) 19H Available only for the sequencer CPU
# (motion register) 2AH Available only for the motion CPU