4.1 PLC Connection 4-3
THU-2755 / THU-5139 / THU-2927
Rotary switch
DIP switch
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.
Switch Setting Remarks
SW1 0 Station 0
Set the number from 00 to 37 in octal notation. SW1 denotes the higher-order digit, and SW2
denotes the lower-order digit.
SW2 0
SW3 1
Baud rate
1: 19200, 2: 9600, 3: 4800
Switch No. Setting Contents
SW4-4 ON Data length: 7 bits
SW4-3 OFF Stop bit: 2 bits
SW4-2 ON Module selection: computer link
SW4-1 OFF 2-wire system or not used
Device Memory TYPE Remarks
D (data register) 00H PRG No. when [Data Area Division] is selected
R (link register) 01H PRG No. when [Data Area Division] is selected
B (file register) 02H PRG No. when [Data Area Division] is selected
N (current value register) 03H PRG No. when [Data Area Division] is selected
X (input) 04H WX as word device
Y (output) 05H WY as word device
M (internal relay) 06H WM as word device, PRG No. when [Data Area Division] is selected
K (keep relay) 07H WK as word device, PRG No. when [Data Area Division] is selected
L (link relay) 08H WL as word device, PRG No. when [Data Area Division] is selected
T (timer/contact) 09H WT as word device, PRG No. when [Data Area Division] is selected
C (counter/contact) 0AH WC as word device, PRG No. when [Data Area Division] is selected
U (extensional data register) 0BH
H (extensional set value register) 0CH
EN (extensional current value register) 0DH
EX (extensional input) 0EH WEX as word device
EY (extensional output) 0FH WEY as word device
EM (extensional internal relay) 10H WEM as word device
EK (extensional keep relay) 11H WEK as word device
EL (extensional link relay) 12H WEL as word device
ET (extensional timer/contact) 13H WET as word device
EC (extensional counter/contact) 14H WEC as word device
V (special register) 15H WV as word device
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