Digital Watchdog x39 Manuel de service télécharger pdf (Page 66)

BIOS and System Programming

64 VIPA GmbH CP486 ⋅ 00/14

4.3 System Register

4.3.1 CP-Status Register (I/O-Address 280 hex - read only)

status

Bit 0 /PLC bank interrupt 0 INT 12 was triggered via PLC-access to

element 1023 in the current bank

1 no access to bank element 1023 via PLC

Bit 1 /WD reset 0 error: watchdog has announced

1 no error

Bit 2 /PFO (accu supervision) 0 CP accu voltage under 2.5V (accu empty

or defective)

1 CP accu voltage over 2.5V (accu ok)

Bit 3 reserved reserved

Bits 4 - 7 indicate settings of DIP switch S2 (boot defaults at accu failure) :

Bit 4 DIP switch S2 position 1 0 no boot from floppy disk drive

1 boot from floppy disk drive A

Bit 5 DIP switch S2 position 2 0 boot from silicon disk as disk drive A

1 boot from memory card as disk drive A

Bit 6 DIP switch S2 position 3 0 bank on PLC side not visible

1 8 banks on PLC side (32-39) visible

Bit 7 DIP switch S2 position 4 reserved

4.3.2 PLC-Status Register (I/O-Address 281 hex - read only)

Bit 0 CPKL 0 PLC has started

1 PLC in RESET mode (approx. 1.6sec)

Bit 1 BASP 0 outputs are conducted

1 outputs are deactivated

Bit 2 BAU 0 PLC battery is ok

1 PLC battery has failed

Bit 3 NAU 0 power supply connected to PLC

1 power supply for PLC is off

Bit 4 PC type (of DIP-SW) 0 PLC-135/PLC-155 set up

1 PLC-115 set up

Bit 5 reserved

Bit 6 reserved

Bit 7 reserved

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 189 190

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Digital Watchdog x39 Manuel de service Page 66