Toshiba V Series User Manual page 130

Appendix A LC51* and Expansion Module
A.2 LC51* Software Specifications
A
Note 1: A certain type of power failure cannot be detected.
Note 2: A temporary error may not be detected depending on the diagnostic timing.
Note 3: Failure diagnosis for digital output is not provided. If there is a possibility of serious effect on
Note 4: Failure diagnosis for digital input is not provided. If there is a possibility of serious effect on the
Note 5: Set an appropriate main scan cycle using application program.
108
Table A-7 LC51* Software Specifications
Item
Control mode
Programming language
Program capacity
Program type
Program processing Control loop/
capacity Program
capacity
Performance
Main scan cycle
Tag Display
Control
Digital
Engineering Tool 2
Power failure decision
Power failure time determination
Network service
Self-diagnosis function (Note)
Monitor function
Maintenance function
the system control in case an erroneous operation occurs, adequate safety system such as an
interlock design for external system must be considered.
system control in case an erroneous operation occurs, measures such as comparative
diagnostic processing by application program using a binary input must be considered.
The performance value of program processing capacity is a general guideline value. The
above performance may not be obtained depending on the application program you use.
Specifications
RUN/HALT/ERROR
ICE61131-3 compliant
64 POU
Task type 1
8 loops/6k steps
1 loop/100 ms, 8 loops/500 ms
50 to 5000 ms (at 50-ms increments)
128
8
32
RS-232C through Ethernet (modular connector)
By long/instantaneous power failure external timer
input
Long-time power failure/Instantaneous power failure
determination external timer input
MC bus
Watchdog timer (WDT) monitor, memory diagnosis
(ROM/RAM), peripheral LSI diagnosis, board revision
management, I/O diagnosis
System bus monitor, serial PI/O monitor, sequence
congestion monitor
Online trace, monitor, logs (error log, operation log,
operation history log, transmission log)
Model 1000 Loop Controller L1 LC511, 512 User's Manual