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| Item | Specification |
| Control method | Stored program method |
| I/O control method | Cyclic scan method
(Immediate refreshing can be performed with IORF(97).) |
| Programming language | Ladder diagram |
| Instruction length | 1 step per instruction
1 to 5 words per instruction |
| Program capacity | 4,096 words |
| Max. I/O capacity | CPU Unit only: 10 points
Expansion I/O Unit: 96 points (32-point Expansion I/O Unit x 3) (Up to 3 Expansion Units can be connected.) CompoBus/S: 256 points (362 points in total) |
| Input bits | IR 00000 to IR 00915
(Bits not used for input bits can be used for work bits.) |
| Output bits | IR 01000 to IR 01915
(Bits not used for output bits can be used for work bits.) |
| CompoBus/S input bits | 128 bits: IR 02000 to IR 02715 (words IR 020 to IR 027) |
| CompoBus/S output bits | 128 bits: IR 03000 to IR 03715 (words IR 030 to IR 037) |
| Work bits | 672 bits:IR 02800 to IR 02915 (words IR 028 to IR 029)
IR 03800 to IR 03915 (words IR 038 to IR 039) IR 04000 to IR 04915 (words IR 040 to IR 049) IR 20000 to IR 22715 (words IR 200 to IR 227) |
| Special bits (SR area) | 440 bits: SR 22800 to SR 25507 (words SR 228 to SR 255) |
| Temporary bits (TR area) | 8 bits: (TR 0 to TR 7) |
| Holding bits (HR area) | 320 bits: HR 0000 to HR 1915 (words HR 00 to HR 19) |
| Auxiliary bits (AR area) | 384 bits: AR 0000 to AR 2315 (words AR 00 to AR 23)
These include CompoBus/S slave status flags (words AR 04 to AR 07). |
| Link bits (LR area) | 256 points: LR 0000 to LR 1515 (words LR 00 to LR 15) |
| Timers/Counters | 256 timers/counters: TIM/CNT 000 to TIM/CNT 255 1-ms timers: TMHH (–)
10-ms timers: TIMH (15) 100-ms timers TIM 1-s/10-s timers: TIML (–) Decrementing counters: CNT Reversible counters: CNTR (12) |
| Pulse output | 2 points with no acceleration/deceleration,
10 Hz to 10 kHz each, and no direction control: 1 point with trapezoid acceleration/deceleration, 10 Hz to 10 kHz with direction control: or 2 points with variable duty-ratio outputs |
| Synchronized pulse control | 1 point |
| Input time constant
(ON response time = OFF response time) |
Can be set for CPU Unit inputs and Expansion Unit inputs only (1, 2, 3, 5, 10, 20, 40, or 80 ms) |
| Clock | Equipped with clock (built-in RTC) |
| Communications functions | Peripheral port: Supports Host Link, peripheral bus, no-protocol communications, and Programming Console connec- tions.
RS-232C port: Supports Host Link, no-protocol communications, 1-to-1 Link, or 1-to-1 NT Link connections. |
| Power failure backup function | Data in HR, AR, Counter (CNT), and Data Memory (DM) areas is held. |
| Memory backup | Non-volatile (flash) memory: Program, read-only DM area, and PC Setup |
| Memory backup (lithium battery: 2 years lifetime): DM area, HR area, AR area, and counter values | |
| Self-diagnostic functions | CPU error (watchdog timer), memory errors, communications errors, setting errors, battery errors, and expansion I/O bus errors |
| Program check | No END instruction, programming errors (checked when operation is started) |
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