Mitsubishi Electric Melsec Q Series User Manual page 102

4 WHEN THE Q/LCPU ACCESSES THE PROGRAMMABLE CONTROLLER
OF ANOTHER STATION USING THE DATA LINK INSTRUCTION
WARNING
!
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POINT
(1) The CC-Link IE Controller Network, CC-Link IE Field Network,
MELSECNET/H, MELSECNET/10 network No., group No., and station No., for
the Ethernet module in the data link instruction setting data, designate the
network No., group No., and station No., assigned to the Ethernet module by
the "Setting the number of Ethernet/CC IE/MELSECNET cards" indicated in
the User's Manual (Basic).
This operation is required for a Q/LCPU to access other stations with the
Ethernet network system identified equivalent as other network systems.
(2) For details of the data designation method for the data link instruction, see
chapter 6.
(3) A maximum of eight instructions can be performed simultaneously, as long as
the channel number (1 to 8) designated in each instruction control data do not
overlap with each other.
There is no difference in operation between the instruction format JP.
GP. and J. and G.
[Precautions for data link instruction]
(1) In a system where AnUCPU coexist, never execute the following instruction from
the Q/L/QnACPU to other station's AnUCPU. The AnUCPU that has been
executed such instruction results in "MAIN CPU DOWN" or "WDT ERROR," and
may stop the operation.
1) SEND 2) READ 3) SREAD 4) WRITE 5) SWRITE 6) REQ
(2) When accessing for all Q/L/QnACPU stations on the MELSECNET/10 including
programmable controller CPU other than Q/L/QnACPU, perform the access
using the group No. designation.
.
MELSEC-Q/L
and
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