Access Via A Bus - Mitsubishi Electric MELSEC Q Series User Manual

22.5.1

Access via a bus

(1) Accessible range
Via a bus connection, access to the following is allowed.
• Own station (C Controller module)
• Other station (Programmable controller CPU or C Controller module)
Other CPUs (programmable controller CPU, and
C Controller module)
(2) Accessible devices
(a) Host station access
Device
X
Y
M
SM (special relay), SB
D
SD (special register), SW
B
W
Special direct buffer register,
Intelligent function module buffer
memory
CPU shared memory
CHAPTER 22 PROGRAMMING USING MELSEC DATA LINK FUNCTIONS
CPU CPU
No.1 No.2
Device type
Access method
(Device name specification)
Batch/
Random
DevSPG(0) to DevSPG(255)
DevSPB1 (for CPU No.1),
Batch
DevSPB2 (for CPU No.2),
DevSPB3 (for CPU No.3),
Random
DevSPB4 (for CPU No.4)
Host module (C Controller module)
: Accessible : Inaccessible
(C Controller module)
DevX
DevY
DevM
DevSM
DevD
DevSD
DevB
DevW
Access target
Own station



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