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10. PLC Constants
10. 4 PLC Bit Selection
280
10.4 PLC Bit Selection
(SETUP PARAM 6. 5/6) to (SETUP PARAM 6. 6/6)
# PLC device Item Details Setting range
6401
6402
6495
6496
R4600-Low
R4600-High
R4647-Low
R4647-High
Bit selection This is the bit type parameter used in the
PLC program (ladder).
Even if the data is set in the R register
that corresponds to the PLC side when
this parameter is displayed‚ the screen
will not change. Enter a different screen
once‚ and then select this screen again.
Note that some parameters have limited
uses.
0: OFF
1: ON
6413
bit0
Dual monitoring
interruption
Reserved for the system.
Used for only C64T.
0/1
Standard: 0
bit6
Communication
terminal overheat
detected
Designate whether to detect the
communication terminal overheat alarm
or not.
0: Detects the overheat alarm.
1: Does not detect the overheat alarm.
0: Detect
1: Not detect
6449
bit7
Control unit
overheat detected
Designate whether to detect the control
unit overheat alarm or not.
0: Detects the overheat alarm.
1: Does not detect the overheat alarm.
0: Detect
1: Not detect
6454
bit0
Macro interface
for respective part
systems
Designate whether to use the macro
interface for respective part systems or
not.
0: Conventional macro interface
common to part systems.
1: Available to respective part systems.
0/1
6457
bit0,1
High-speed input
specification
bit0: High-speed input from R54.
bit1: High-speed input from R55.
Note that this is used for only C64T.
bit0: 0/1
bit1: 0/1
6458
bit0,1
High-speed
output
specification
bit0: High-speed output to R56
bit1: High-speed output to R57
Note that this is used for only C64T.
bit0: 0/1
bit1: 0/1
CAUTION
When setting the parameter (#6449/bit6,7) not to check the overheat, the control unit and
the communication terminal may not be controlled because of overheat.
In such case, axis runaway may cause a machine breakage, an accident resulting in injury
or death, or device breakage.
To prevent the serious results, ordinarily set the parameters so that the overheat check is
valid.