Technical data

Setting Up and Operating the Computing Unit
3-12
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
Caution
Always discharge your body’s charge before inserting or removing Cardbus/PC
cards by briefly touching a grounded object (refer also the ESD Guideline,
section C).
Damage could occur if you do not.
Note
Peak currents of 650 mA at 5 V referred to 3 s are allowed.
Examples of PCMCIA cards on the PC card interface for
hard disk drive 330 mA read/write
(Maxtor MXL-131-III) 640 mA spin up 2 s. . . . .
110 mA idle. . . . . . . . . . . . . . . . . . . . . . . .
fax/modem 60 mA idle. . . . . . . . . . . . . .
(Dr. Neuhaus) 140 mA transfer. . . . . . . . . . .
Ethernet
(XIRCOM) 150 mA. . . . . . . . . . . . . .
Installing PC cards
Observe the following points when you install these cards:
Note
Depending on the configuration of the computing unit, it could be that there are no free
interrupts for the operation of PC cards. In this case, reserve interrupts in setup.
To reserve interrupts, proceed as follows:
On the “Advanced” BIOS setup menu, set the interrupt which will be required for
the PC cards to “reserved” ( default: available) on the “PCI Configuration” line at
“PCI/PNP ISA IRQ Resource Exclusion”.