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Chapter 8 Communication Functions
8-7
8.1.4 List of commands
Command
Main command Command type
Classification
Items
Code ASCII code Code ASCII code
Treatment
Individual r(R)
H72
(H52)
SS 5353
Reads data from device of Bit, Byte, Word type.
Readin
g
device
Continuous
r(R)
H72
(H52)
SB 5342
Reads device Word in block unit.
(Continuous reading Bit is unavailable)
Individual w (W)
H77
(H57)
SS 5353
Writes data to device of Bit, Byte and Word type.
Writing
device
Continuous
w(W)
H77
(H57)
SB 5342
Writes data to Byte and Word type in block unit.
(Continuous reading Bit is unavailable)
CPU
Status reading
r(R)
H73
(H53)
ST 5354
Reads flag list like PLC operation status and error
information.
Command
Main command Register No.
Classification
Item
Code ASCII code
Register
no.
ASCII code
Treatment
Monitoring variable
register
x(X)
H78
H58
H00~H09 3030 ~ 3039 Register device to monitor.
Execution of
monitoring
y(Y)
H79
(H59)
H00~H09 3030 ~ 3039 Execute registered device to monitor.
Remark
MASTER-K120S main unit identifies capitals or small letters for main commands, but not for the others.