Siemens S5-135U/155U - Manual (Page 158)

5-18
System Manual
C79000-G8576-C199-06
5.2.2 Installation and Startup
This section explains the installation and removal of the module in the CC,
controls and indicators on the front plate of the CPU, and the procedure for
module startup.
There are four system interrupts for interrupt-driven program processing with
the CPU 948:
S
INTA/B/C/D (depending on the CPU slot, see also Section 4.1.1)
S
INTE
S
INTF
S
INTG.
The interrupts you wish to use must be enabled by inserting the jumper plugs
provided. The jumper socket is situated on the basic board above the
receptacle for the memory card. The exact location is given in Figure 5-3:
INTF
INTG
INTE
INTA/B/C/D
View of underside of module
Jumper
Front panel
Figure 5-3 Location of Jumper Socket Location of an Additional Jumper for the
Functions Described Below
If you want to operate an IM308C in the IM3/IM4 area and additional digital
or analog modules in the central controller, you must insert the jumper shown
in Figure 5-3.
Jumper Settings
CPUs, Memory Cards, Memory Submodules, Interface Submodules