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111
System Variables
Section 4-5
4-5
System Variables
4-5-1
System Variables
System variables are all in read-only area; they cannot be written.
When reading with the IORD instruction, the size is always two words (4
bytes).
Variable
Address
IORD
Address
Group
Name
Description
Unit
Update timing
SW0000
3000
Unit
Unit Cycle Time
Outputs unit cycle time (SH4).
0.5 ms
When power is
turned ON
SW0001
Unit
MECHATROLINK-II
Communication Cycle
Outputs the MECHATROLINK-II Com-
munication Cycle.
0.5 ms
When power is
turned ON
SW0002
3001
Unit
Operation Mode
Outputs the MC Unit operation mode
0: RUN mode
1: CPU mode
2: Tool mode
Nil
When operation
mode is changed
SW0003
Product ID
(Supported in Unit Ver.
3.0 or later)
Bit 00
0: CS1W-MCH71 Unit Ver. 2.0 or earlier
1: Other unit versions
Nil
When power is
turned ON
SW0004
3002
Unit
Forced Stop Request
from the Tool: Detail of
the request
Indicates forced stop request from the
tool.
Bit00: Axis: task stop
Bit01: Axis, task stop cancel
Bit06: Cam Data buffer copy
Bit07: Program buffer copy
Nil
FINS: Task Con-
trol setting
SW0005
Forced Stop Request
from the Tool: Object 1
Indicates forced stop request from the
tool.
Bit00-07: 0/1 Motion task
1-8With/without forced stop request
Bit08: 0/1 Reserved
Nil
FINS: Task Con-
trol Setting
SW0006
3003
Forced Stop Request
from the Tool: Object 2
Indicates forced stop request from the
tool.
Bit00-31: 0/1 Axis
1-32With/without forced stop request
Nil
FINS: Task Con-
trol Setting
SW0007
SW0008
3004
Reserved
Reserved
Reserved
Reserved
SW0009
Status of Forced Stop
from the Tool: Object 1
Indicates status of forced stop from the
tool.
Bit00-07: 0/1 Motion task
1-8in progress/being stopped
Bit08: 0/1 Reserved
Nil
Unit Scan
SW000A
3005
Status of Forced Stop
from the Tool: Object 2
Indicates status of forced stop from the
tool.
Bit00-31: 0/1 Axis
1-32in progress/being stopped
Nil
Unit Scan
SW000B
SW000C
3006
Unit
No. of Unit Scan Execu-
tions
Indicates the No. of unit scan execu-
tions.
Times
Unit Scan
SW000D
SW000E
3007
Unit
No. of Self-diagnosis
executions
Indicates the No. of self-diagnosis exe-
cutions in background.
Times
When executing
Self-diagnosis
SW000F
SW0010
3008
Unit
Error log: No. of stored
records
Outputs No. of error logs after the power
has been turned ON. 0-20
Record
Error occurrence
SW0011
Error log: No. of actual
records
Outputs No. of error logs after the power
has been turned ON. (For system man-
agement) 0-64000
The most recent error is stored in the
error log whose number is the remain-
der of the value output here divided by
20.
Record
Error occurrence
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