User`s manual

9
DEVICE EXPLANATION
9.2 Internal User Devices
9.2.12 Link special register (SW)
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9
Device Explanation
10
CPU Module Processing Time
11
Procedure for Writing Program to CPU ModuleAppendicesIndex
(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
(PLC to PLC network)
9.2.12 Link special register (SW)
(1) Definition
The link special register stores the CC-Link Safety master module and MELSECNET/
H module communication status
• error definition.
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 Table9.4.
Remark
Refer to the following manual for the link special register.
CC-Link Safety Master Module User
's Manual
Q Corresponding MELSECNET/H Network System Reference Manual
(PLC to PLC network)
Table9.4 Number of link special register points of each CPU module
CPU module Number of link special relay points
Safety CPU
1536 points (SW0 to 5FF).
512 points are assigned to each CC-Link Safety master module
and MELSECNET/H module.
The link special registers can be assigned as shown below.
SW200
SW3FF
SW400
SW5FF
SW0
SW1FF
Link special register
For the 1st network
module
For the 2nd network
module
For the 3rd network
module
1536
points
512
points
512
points
512
points