18
2-1-2 Characteristics
Item
CPM1A-20CAR--A
CPM1A-32CAR--A
Instruction length
1 step per instruction, 1 to 5 words per instruction
Types of instructions
Basic instructions:
14
Special instructions: 77 types, 135 instructions
Execution time
Basic instructions:
0.72 to 16.2
m
s
Special instructions: 16.3
m
s (MOV instruction)
Program capacity
2,048 words
Max. I/O capacity
CPU Unit only
20 points
32 points
Max. I/O capacity
With Expansion
I/O Modules
See note 3.
52, 72, or 92 points
Input bits
00000 to 00915 (Words not used for input or output bits can be used for
work bits.)
Output bits
01000 to 01915 (Words not used for input or output bits can be used for
work bits.)
Work bits
512 bits: 20000 to 23115 (Words IR 200 to IR 231)
Special bits (SR area)
384 bits: 23200 to 25515 (Words IR 232 to IR 255)
Temporary bits (TR area)
8 bits (TR0 to TR7)
Holding bits (HR area)
320 bits: HR 0000 to HR 1915 (Words HR 00 to HR 19)
Auxiliary bits (AR area)
256 bits: AR 0000 to AR 1515 (Words AR 00 to AR 15)
Link bits (LR area)
256 bits: LR 0000 to LR 1515 (Words LR 00 to LR 15)
Timers/Counters
128 timers/counters (TIM/CNT 000 to TIM/CNT 127)
100-ms timers: TIM 000 to TIM 127
10-ms timers (high-speed counter): TIM 000 to TIM 127
(see note 1)
(the timer numbers used are the same as for the 100-ms timers)
Decrementing counters and reversible counters
Data memory
Read/Write: 1,024 words (DM 0000 to DM 1023)
Read-only: 512 words (DM 6144 to DM 6655)
Interrupt processing
(see note 2)
External interrupts: 4
Interval timer interrupts
1 (0.5 to 319,968 ms in Scheduled Interrupt Mode or Single Interrupt
Mode)
Memory protection
HR and read/write DM area contents; and counter values maintained
during power interruptions.
Memory backup
Flash memory:
The program, read-only DM area, and PC Setup area are backed up
without a battery.
Capacitor backup:
The read/write DM area, error log area, HR area, and counter values are
backed up by a capacitor for 20 days at 25
_
C. The capacitor backup time
depends on the ambient temperature. See the graph on the following
page for details.
Self-diagnostic functions
CPU Unit failure (watchdog timer), I/O bus error, and memory failure
Program checks
No END instruction, programming errors (continuously checked during
operation)
High-speed counter
Maximum frequency: 20 Hz (See Section 2-1-3.)
Quick-response inputs
The same inputs are used for quick response inputs and external interrupt
inputs. Minimum input pulse width: 5ms (See Section 2-1-3.)
Pulse output
Maximum rate for relays is 0.5 Hz or 1 sec duty cycle.
Input time constant
Settable to 1, 2, 4, 8, 16, 32, 64, or 128 ms.
Analog controls
2 controls, setting range: 0 to 200 BCD
Specifications
Section 2-1
Summary of Contents for CPM1A-20CAR-A
Page 3: ...ii...
Page 5: ...iv...
Page 9: ...iv...
Page 29: ...14 System Configuration Section 1 2...
Page 43: ...29 Unit Components Section 2 2...
Page 65: ...51 Wiring and Connections Section 3 4...
Page 123: ...Appendix B Dimensions 2 CPM1 CIF01 90 81 21 30 205 50 56 CPM1 CIF11 90 81 21 30 205 50 61...
Page 124: ...Appendix B Dimensions 3 Dimensions with Peripheral Devices Attached Approx 90 Approx 125...
Page 125: ...Appendix B Dimensions 4...
