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PLC Function Specifications
7.3 PLC Function Specifications
The following table indicates the program capacity and devices of the PLC function.
*1 These signals use the same terminals as used by the input and output signals given in the
common specifications of the inverter.
The points other than the six X points and two Y points installed can be used as internal memory.
(X as contact only)
One point is always necessary for a sequence start (RUN/STOP).
*2 As inverter control is also performed actually, the scan time is approximately 40ms at 500 steps.
7.4 CC-Link Interface Specifications
C500 Sequence Section
Control method Repeated operation (by stored program)
I/O control method Refresh
Programming language
Relay symbolic language (ladder mode)
Logic symbolic language (list mode)
Number of
instruction
PLC instructions 23
Basic, application instructions 28
Processing speed LD X:13µs, MOV:24µs(*2)
Number of I/O points
96 (X: 48 points, Y: 48 points)
(8 points installed, X: 6 points, Y: 2 points)) (*1)
Watchdog timer 10 to 2000(ms)
Memory capacity 6k bytes used by sequence and parameters.
Program capacity 1k step
Devices
Internal relay (M) 64(M0 to M63)
Latch relay (L) None (Can be set with parameters but will not latch)
Step relay (S) None (Can be set with parameters but will operate as M)
Link relay (B) None
Timer (T)
Points 8
Specifications
100ms timer: Set time 0.1 to 3276.7s (T0 to 7)
10ms timer: Set time 0.01 to 327.67s
100ms retentive timer: Set time 0.1 to 3276.7s
Counter (C)
Points 8
Specifications
Normal counter: Setting range 1 to 32767 (C0 to 7)
Interrupt program counter: None
Data device (D) 120(D0 to D119)
Link register (W) None
Annunciator (F) None
File register (R) None
Accumulator (A) None
Index register (Z, V) None
Pointer (P) None
Interrupt pointer (I) None
Special relay (M) 256 (M9000 to 9255) with function limit
Special register (D) 256 (D9000 to 9255) with function limit
Form
Terminal block connection system (can be removed/reinstalled from
inverter front panel)
Power supply 5VDC supplied from inverter
Number of connected
inverters
Maximum 42 (1 station occupied by 1 inverter), can be shared among
C500 and other models
Connected terminal block Six-terminal block (M3 × 6 screws)
Wire size
0.75 to 2mm
2
Station type Remote device station
Number of occupied stations One inverter occupies one station.
Connection cable CC-Link dedicated cable, CC-Link Ver. 1.10 compatible CC-Link dedicated cable