Mitsubishi Q02CPU

9
DEVICE EXPLANATION
9
- 41
9.2 Internal User Devices
9.2.14 Link special register (SW)
(4) 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
Refer to the following manual for the network parameters.
Q Corresponding MELSECNET/H Network System Reference Manual
9.2.14 Link special register (SW)
(1) Definition
Link special registers are used to store data on the communication status and errors
of an intelligent function
Because the data link information is stored as numeric data, the link special registers
serve as a tool for identifying the locations and causes of faults.
(2) Number of link special register points
The number of link special register points is as described in Table9.7.
Remark
For details of the link special registers, refer to the manual of the intelligent
function module having link special registers.
Table9.7 Number of link special register points of each CPU module
CPU module Number of link special relay points
Basic model QCPU
1024 points (SW0 to 3FF).
512 points assigned to each intelligent function module such as
the MELSECNET/H network module.
High Performance
model QCPU
Process CPU
Redundant CPU
2048 points (SW0 to 7FF).
512 points assigned to each intelligent function module such as
the MELSECNET/H network module.
The link special registers can be assigned as shown below.
SW200
SW3FF
SW400
SW5FF
SW600
SW7FF
SW0
SW1FF
Link special register
For the 1st network
module
For the 2nd network
module
For the 3rd network
module
For the 4th network
module
2048
points
512
points
512
points
512
points
512
points