
3.MESSAGE TRANSMISSION DESCRIPTION B-63434EN/02
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3.5.2 Virtual address space allocation
Virtual address space used to read/write byte block and read/write
word block is allocated in the PMC area as described below.
Virtual address space for byte block data
Table 3-10 Virtual Address Space for Byte Block Data
Allocation in PMC
Symbol Type of signal Address
(decimal)
Virtual address
space
(hexadecimal)
Remarks
X Signal from machine to
PMC
X0000 or
later
0000h or later Read only
Y Signal from PMC to
machine
Y0000 or
later
4000h or later Read only
F Signal from CNC to PMC F0000 or
later
8000h or later Read only
G Signal from PMC to CNC G0000 or
later
C000h or later Read only
R Internal relay R0000 or
later
10000h or later Read/write
D Data table D0000 or
later
14000h or later Read/write
Virtual address space for word block data
Table 3-11 Virtual Address Space for Word Block Data
Allocation in PMC
Symbol Type of signal Address
(decimal)
Virtual address
space
(hexadecimal)
Remarks
X Signal from machine to
PMC
X0000 or
later
0000h or later Read only
Y Signal from PMC to
machine
Y0000 or
later
2000h or later Read only
F Signal from CNC to PMC F0000 or
later
4000h or later Read only
G Signal from PMC to CNC G0000 or
later
6000h or later Read only
R Internal relay R0000 or
later
8000h or later Read/write
D Data table D0000 or
later
A000h or later Read/write
NOTE
Only installed address space in the PMC can be
accessed. Check PMC address space before use.