Siemens Simatic PG 740 - Page 57

4
4-9
Programming Device PG 740
C79000-G7076-C742-01
ON
OFF
S2
12
3
45
6
1234
56
ON
OFF
S1
Figure 4-5 Standard Settings of Switches S1 (1..6) and S2 (1..6) for 133 MHz Pentium
CPU
S2(6) S2(5) S1(6) S1(5) ISA-Bus
Clock
PCI-Bus
Clock
CPU-Bus
Clock
CPU-Core
Clock
(CPU
internal)
off on on on 8.25MHz 33MHz 66MHz 133MHz
on off on on 7.50MHz 30MHz 60MHz 120MHz
on on off on 8.33MHz 25MHz 50MHz 100MHz
off on on off 8.25MHz 33MHz 66MHz 100MHz
on off on off 7.50MHz 30MHz 60MHz 90MHz
on on off off 8.33MHz 25MHz 50MHz 75MHz
Standard
Settings
Clock Settings
PG 740 Expansions