6 - 139
CHAPTER6 FUNCTIONS
1
2
3
4
5
6
7
8
6.24 Serial Communication Function
(4) Accessible devices
Table6.44 shows accessible devices by the serial communication function.
*1: This is a code specified in MC protocol messages. When communicating data in ASCII code, specify the code in two characters. If the
code consists of only one character, add "*" (ASCII code: 2A
H
) or a space (ASCII code: 20
H
) after the character.
*2: Devices of DX/DY1000 or later are not available. Use X/Y devices to access devices of X/Y1000 or later.
*3: The Q00UJCPU does not support these devices.
Table6.44 Accessible devices by the serial communication function
Category Device
Device code
*1
Device number range
ASCII Binary
Internal system
device
Function input --- ---
(Cannot be accessed)
Hexadecimal
Function output --- --- Hexadecimal
Function register --- --- Decimal
Special relay SM
91
H
Within the device number range
of the CPU module accessed.
Note, however, that local devices
cannot be
accessed.
Decimal
Special register SD
A9
H
Decimal
Internal user
device
Input X*
9C
H
Hexadecimal
Output Y*
9D
H
Hexadecimal
Internal relay M*
90
H
Decimal
Latch relay L*
92
H
Decimal
Annunciator F*
93
H
Decimal
Edge relay V*
94
H
Decimal
Link relay B*
A0
H
Hexadecimal
Data register D*
A8
H
Decimal
Link register W*
B4
H
Hexadecimal
Timer
Contact TS
C1
H
DecimalCoil TC
C0
H
Current value TN
C2
H
Retentive timer
Contact SS
C7
H
DecimalCoil SC
C6
H
Current value SN
C8
H
Counter
Contact CS
C4
H
DecimalCoil CC
C3
H
Current value CN
C5
H
Link special relay SB
A1
H
Hexadecimal
Link special register SW
B5
H
Hexadecimal
Step relay S*
98
H
Decimal
Direct input
*2
DX
A2
H
Hexadecimal
Direct output
*2
DY
A3
H
Hexadecimal
Index register Index register Z*
CC
H
Within the device number range
of the CPU module
accessed
Decimal
File register
*3
File register
R*
AF
H
Decimal
ZR
B0
H
Hexadecimal
To Next Page
Loading...
Need help?
General
