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10.12
For Modem Communication
This section explains the accessible devices and accessible ranges for modem communication.
10.12.1
Accessible devices
Function input (FX)
Function output (FY)
Function register (FD)
Special relay (SM)
Special register (SD)
Input relay (X)
Output relay (Y)
Internal relay (M)
Latch relay (L)
Annunciator (F)
Edge relay (V)
Link relay (B)
Data register (D)
Link register (W)
Contact (TS)
Timer
(T)
Coil (TC)
Present value (TN)
Contact (CS)
Counter
(C)
Coil (CC)
Present value (CN)
Retentive timer
(ST)
Contact (STS)
Coil (STC)
Present value (STN)
Link special relay (SB)
Link special register (SW)
Step relay (S)
Direct input (DX)
Direct output (DY)
Accumulator (A)
(Z)
Index register
(V)
File register
(R)
(ZR)
The following table indicates the accessible devices for modem communication.
Device (Device Name)
¯
¯
¯
¯
¯
*3
*3
QCPU
(Q mode)
¯
¯
¯
¯
¯
¯
*2
*2
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
Access Target
C Controller module
LCPU
¯
¯
¯
¯
¯
¯
¯
¯
QSCPU
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
FXCPU
*1
*1
¯
¯
¯
*1
¯
¯
¯
¯
¯
*1
*1
*4
¯
*1
*1
*1
*1
¯
*1
*1
*1
¯
¯
¯
¯
¯
¯
¯
¯
*1
¯
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CHAPTER 10 ACCESSIBLE RANGES
Device (Device Name)
QCPU
(Q mode)
Access Target
C Controller module
LCPU QSCPU
Extended file register (ER*\R)
Link input (J*\X)
¯
¯
¯
¯
¯
Link output (J*\Y)
¯
Direct link
Link relay (J*\B)
Link special relay (J*\SB)
¯
¯
Link register (J*\W)
¯
Link special register (J*\SW)
¯
Special direct buffer memory (U*\G)
*5
¯
*1 : FX
0
CPU, FX
0S
CPU, FX
0N
CPU, FX
1
CPU, FX
U
CPU, and FX
2C
CPU cannot be accessed.
*2 : Q12DCCPU-V (Basic mode) cannot be accessed.
*3 : Q00JCPU and Q00UJCPU cannot be accessed.
*4 : When accessing FX series CPU other than FX
3G(C)
CPU and FX
3U(C)
CPU, specify the data register (D).
The extended register (R) can be specified only when accessing FX
3G(C)
CPU or FX
3U(C)
CPU.
*5 : In a multi-CPU configuration, reading from the shared memory of the host CPU cannot be performed.
Writing to the shared memory cannot be performed regardless of the host or other CPU.
*6 : Only FX
3U(C)
CPU can be accessed.
FXCPU
¯
¯
¯
¯
¯
¯
¯
*6
10
287
10.12.2
Accessible ranges
This section indicates the accessible ranges for Modem communication.
(1) When using Q series-compatible C24 and L series-compatible C24
(a) Configuration
Connected station CPU
Connected module
Relayed module
Modem
Relayed network
Personal computer
Subscriber line
Modem
Relayed station CPU
Relayed module
(b) Accessibility list
The following table indicates whether the CPUs can be accessed.
The connected station CPUs are all accessible.
Whether the relayed station CPU is accessible or not is indicated by (accessible) or
¯
(inaccessible).
CPU
Connected Station
Connected Module
Relayed Network
QCPU
(Q mode)
Relayed station CPU
C Controller module
LCPU QSCPU
Q motion
CPU
FXCPU
QCPU
(Q mode)
LCPU
Q series-compatible C24
CC IE Control
CC IE Field
MELSECNET/H
Ethernet
Serial communication
*3
*1
¯
¯
*2
¯
¯
*1
¯
¯
¯
¯
¯
¯
¯
¯
¯
CC-Link
Multi-drop connection
(Independent mode)
*4
*3
¯
¯
¯
¯
¯
¯
¯
CC IE Field
*2
MELSECNET/H
Ethernet
¯
¯
*1
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
¯
L series-compatible C24
Serial communication
*3
¯ ¯ ¯ ¯
CC-Link
¯ ¯ ¯
Multi-drop connection
(Independent mode)
*4
*3
¯ ¯ ¯ ¯
*1 : Since CC-Link IE Field Network is not supported, Q12DCCPU-V (Basic mode) and QSCPU relayed by CC-Link IE Field
Network cannot be accessed.
*2 : Since CC-Link IE Controller Network is not supported, LCPU relayed by CC-Link IE Controller Network cannot be accessed.
*3 : For Redundant CPU, serial communication modules on the main base cannot be accessed.
*4 : Indicates the CH2 side setting. (The CH1 side is fixed to the independent mode.)
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CHAPTER 10 ACCESSIBLE RANGES
(2) When using FXCPU
(a) Configuration
Connected station CPU
Relayed module
Modem
Relayed network
Subscriber line
Modem
Relayed station CPU
Relayed module
Personal computer
(b) Accessibility list
The following table indicates whether the CPUs can be accessed.
The connected station CPUs are all accessible.
Whether the relayed station CPU is accessible or not is indicated by (accessible) or
¯
(inaccessible).
Connected Station CPU Relayed Network
QCPU
(Q mode)
Relayed station CPU
C Controller module
LCPU QSCPU
CC IE Control
CC IE Field
¯ ¯ ¯
MELSECNET/H
Ethernet
¯ ¯ ¯
FXCPU
*1
¯ ¯ ¯
Serial communication
¯ ¯ ¯
CC-Link
¯ ¯ ¯
*1 : FX
0
CPU, FX
0S
CPU, FX
0N
CPU, FX
1
CPU, FX
U
CPU, and FX
2C
CPU cannot be accessed.
¯
¯
¯
¯
¯
Q motion
CPU
¯
¯
¯
¯
¯
FXCPU
¯
¯
¯
¯
¯
10
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