AEG SB4 series User Manual download pdf (Page 185)

ALU 011, ALU 012, ALU 021

173

Note The present module description here after deals with the ALU 011 from module

index .30. The corresponding front and side views are presented on page 168.

Note Versions containing English software see ’Ordering codes’.

1.6 Physical Characteristics

The hardware of the ALU 011 ... 019 modules consists of a printed board in double eu-

rope format (6HE) and front panel of width 4T with various operating, indicating and

port elements as well as the basic software. The power dissipation of the module re-

quires a slot breadth of 8T with an additional dummy plate of 6HE/4T (air supply) with

natural convection. A slot of breadth 4T is allowed with forced cooling. However, in this

case the small distance to the neighbouring module to the right should be considered

while inserting/ removing the module.

The current version of the basic software is equipped in the EPROM memory area.

The main integral parts of the modules are:

80C186 microprocessor for the processor

80C187 microprocessor can be retrofitted as a numeric coprocessor

Memory slots with the standard equipment

2 x 128 kbyte RAM for signal memory (bit string, word area) and programs

2 x 128 kbyte EPROM (or RAM) for user programs and basic software

2 x 128 kbyte EPROM (or RAM) for basic software

2 x 128 kbyte EPROM or basic software

Real time clock with date and calendar functions (in preparation)

Optional RAM backup via rear side bus connector or front side interface connector

Front interface for programming panels

Rear interface for I/O bus (PEAB) and memory bus (PMB)

Rechargable battery charging circuit with test functions

DIP switch panel for RAM insertion and for setting the writing protection

Monitoring functions for program run and rechargable battery voltage

Operating mode selection for user program

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AEG SB4 series User Manual Page 185