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(4) Accessible devices
Table6.41 shows accessible devices by the serial communication function.
: Reading/writing are enabled. : Writing is prohibited.
*1: After changing the number of device points of the CPU module with GX Developer, use the devices within the new device number range.
Decimal and hexadecimal indicate whether a command specified for the MC protocol is decimal or hexadecimal.
*2: From 000005 to 00000F of FX and FY will be indefinite value.
*3: These registers are not supported by the Q00UJCPU.
Table6.41 Accessible devices by the serial communication function
Category Device Device code
Device number range*1
(default value
Write Read
Internal
system device
Function input
FX
*2
000000 to 00000F Hexadecimal
Function output
FY
*2
000000 to 00000F Hexadecimal
Function register FD 000000 to 000004 Decimal
Special relay SM 000000 to 002047 Decimal
Special register SD 000000 to 002047 Decimal
Internal user
device
Input X 000000 to 001FFF Hexadecimal
Output Y 000000 to 001FFF Hexadecimal
Internal relay M 000000 to 008191 Decimal
Latch relay L 000000 to 008191 Decimal
Annunciator F 000000 to 002047 Decimal
Edge relay V 000000 to 002047 Decimal
Link relay B 000000 to 001FFF Hexadecimal
Data register D 000000 to 012287 Decimal
Link register W 000000 to 001FFF Hexadecimal
Timer
Contact TS
000000 to 002047 DecimalCoil TC
Current value TN
Retentive
timer
Contact SS
000000 to 002047 DecimalCoil SC
Current value SN
Counter
Contact CS
000000 to 001023 DecimalCoil CC
Current value CN
Link special relay SB 000000 to 0007FF Hexadecimal
Link special register SW 000000 to 0007FF Hexadecimal
Step relay S 000000 to 008191 Decimal
Direct input DX 000000 to 000FFF Hexadecimal
Direct output DY 000000 to 000FFF Hexadecimal
Index register Index register Z 000000 to 000019 Decimal
File register
*3
File register
R 000000 to 032767 Decimal
ZR 000000 to 3FD7FF Hexadecimal
Extended data
register
*3
Extended data register D 000000 to 093183 Decimal
Extended link
register
*3
Extended link register W 000000 to 016BFF Hexadecimal