MITSUBISHI ELECTRIC MOTION CONTROLLERS Q172DCPU - Manual (Page 121)

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4 AUXILIARY AND APPLIED FUNCTIONS
(3) Network configuration via the RS-422/485
(a) It can access the other CPU via the RS-422/485 from the programming
software packages (GX Developer, MT Developer, etc.) of the personal
computer connected with the CPU or serial communication module in
USB/RS-232.
(b) The access range of above (1) is only the CPU on the RS-422/485 which a
system connects it to, and it can select RS-422/485 network to connect by
specifying the I/O No. of the C24 module.
RS-232 USB/
RS-232
C24 : Serial communication module
<Example 1>
RS-422/485
Q173D
CPU C24 QnUD(H)
CPU
Personal
computer Personal
computer
RS-422/485
Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU
: Communication is possible
: Communication is impossible
<Example 2>
Q173D
CPU C24 QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU
Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU
Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU Q173D
CPU QnUD(H)
CPU
USB/
RS-232
Personal
computer
C24 C24 C24 C24
C24 C24 C24 C24
RS-422/485
C24 C24 C24 C24
C24 C24 C24 C24
RS-422/485
RS-422/485
RS-422/485