| Mitsubishi PLC CPU Module Q Series | Q02CPU | Q02HCPU | Q06HCPU | Q12HCPU | Q25HCPU |
| Control method | Stored program cyclic operation |
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| I/O control mode | Refresh |
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Program language (sequence control language) | • Relay symbol language (ladder)
• Logic symbolic language (list) • MELSAP3 (SFC), MELSAP-L • Function block • Structured text (ST) |
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| Memory card interface |
(SRAM card, Flash card, ATA card) |
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| Total number of instructions*3 | 725 |
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| Floating point instruction | |
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| Character string processing instruction | |
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| PID instruction | |
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| Special function instruction
(Trigonometric function, square root, exponential operation, etc.) |
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| Constant scan
(Function for keeping regular scan time) | 0.5…2000 ms (setting available in units of 0.5 ms) |
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| Program capacity | 28K steps | 60K steps | 124K steps | 252K steps |
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| Number of I/O device points [X/Y] | 8192 points |
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| Number of I/O points [X/Y] | 4096 points |
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| Internal relay [M]*4 | 8192 points |
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| Latch relay [L]*4 | 8192 points |
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| Link relay [B]*4 | 8192 points |
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| Timer [T]*4 | 2048 points |
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| Retentive timer [ST]*4 | 0 point |
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| Counter [C]*4 | 1024 points |
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| Data register [D]*4 | 12288 points |
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| Link register [W]*4 | 8192 points |
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| Annunciator [F]*4 | 2048 points |
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| Edge relay [V]*4 | 2048 points |
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| Link special relay [SB] | 2048 points |
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| Link special register [SW] | 2048 points |
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| File register [R, ZR] | 32768 points*5 | 65536 points*5 | 131072 points*5 |
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| Step relay [S] | 8192 points |
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| Index register [Z] | 16 points |
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| Pointer [P] | 4096 points |
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| Interrupt pointer [I] | 256 points |
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| Special relay [SM] | 2048 points |
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| Special register [SD] | 2048 points |
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| Function input [FX] | 16 points |
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| Function output [FY] | 16 points |
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| Function register [FD] | 5 points |
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| Local device | |
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| Device initial values | |
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