Special Link Registers (Sw) - Mitsubishi Electric MELSEC-Q Series User Manual

10 DEVICES

10.2.14 Special link registers (SW)

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(2) Using link registers in a network system
In order to use link registers in the network system, network parameter settings
must be made.
Link registers not set in the network parameter settings can be used as data
registers.
REMARK
1) For details regarding network parameters, refer to the Q Corresponding
MELSECNET/H Network System Reference Manual.
(1) Definition
(a) Special link registers are used to store data on the communication status
and errors of an intelligent function
(b) Because the data link information is stored as numeric data, the special link
registers serve as a tool for identifying the locations and causes of faults.
(2) Number of special link register points
There are 1024 special link register points from SW0 to SW3FF. The special link
register points are assigned at the rate of 512 points per intelligent function
module, such as a MELSECNET/H network module.
REMARK
For details regarding special link registers used in the Basic model QCPU, refer to
the QCPU(Q mode)/QnACPU Programming Manual (Common Instructions).
MELSEC-Q
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