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2 installation and startup – Siemens S5-135U/155U User Manual

Page 158

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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