4 HARDWARE SPECIFICATION OF THE CPU MODULE
No. | Name |
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| Application | |
1) | Module fixing hook | Hook used to fix the module to the base unit. | |||
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| Indicates the mode of the CPU module. | |||
2) | "Mode" LED | ON (green) | : Q mode | ||
ON (orange) | : A mode | ||||
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| Flicker (green) | : Enforced ON/OFF for external I/O registered | ||
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| Indicates the operating status of the CPU module. | |||
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| ON | : During operation in "RUN" status. | ||
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| OFF | : During a stop in "STOP" status or detection of error whose occurrence stops | ||
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| operation. | ||
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| Flicker | : When parameter/program is written at STOP and RUN/STOP switch is | ||
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| changed from "STOP" to "RUN". | ||
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| To turn ON the RUN LED after writing the program, carry out the following | ||
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| steps. |
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3) | "RUN" LED |
| y Set the RUN/STOP switch from "RUN" → "STOP" → "RUN". | ||
| y Reset with the RESET/L.CLR switch. | ||||
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| y Restart the PLC power. | ||
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| To turn ON the RUN LED after writing the parameters, carry out the following | ||
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| steps. |
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| y Reset with the RESET/L.CLR switch. | ||
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| y Restart the PLC power. | ||
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| (If the RUN/STOP switch is set from "RUN" → "STOP" → "RUN" after | ||
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| changing the parameters, the parameters related to the intelligent function | ||
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| module, such as the network parameters, will not be reflected.) | ||
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| ON | : Detection of | ||
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| error. |
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| (When operation continued at error detection is set in the parameter.) | ||
4) | "ERR." LED | OFF | : Normal | ||
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| Flicker | : Detection of error whose occurrence stops operation. | ||
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| When automatic write to standard ROM is completed normally. ("BOOT" LED | ||
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| also flickers.) | ||
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| ON | : Error detected by CHK instruction or annunciator ON | ||
5) | "USER" LED | OFF | : Normal | ||
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| Flicker | : Execution of latch clear | ||
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| ON | : Occurrence of battery error due to reduction in battery voltages of CPU module | ||
6) | "BAT." LED |
| or memory card. | ||
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| OFF | : Normal | ||
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| ON | : Start of boot operation | ||
7) | "BOOT" LED | OFF | : | ||
Flicker | : When automatic write to standard ROM is completed normally. ("ERR." LED | ||||
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| also flickers.) | ||
8) | Module loading lever | Used to load the module to the base unit. | |||
4 - 5 | 4 - 5 |