Pepper-computer Modular Computers RS485 Instrukcja Użytkownika Pobierz pdf (Strona 44)

SMART I/O User’s Manual

March 12, 1996

Page 2 - 4

Chapter 2 SMART-BASE

2.1 Specifications

DC/DC

Nominal Input Voltage 24V DC

Input Voltage Range 18V - 36V DC

Input Current

140mA typ. @ 24V (static)

400mA typ. @ 24V (full load)

Main Output Voltage 5V DC / 1.2A ± 2.5%

Auxiliary Output Voltage 5V DC / 150mA (PROFIBUS/RS485) ± 5%

Switching Frequency 100kHz

Main Output Ripple ± 10mV typ.

Max. Efficiency 68% typ. (between 74% and 100% load)

Galvanic Isolation 500V DC max. to/from supply source

Controlling Unit

CPU MC68302 @ 20MHz

EPROM or FLASH*

1 MByte or 256 kByte on Jedec 32-pin

sockets (16-bit access)

FLASH*

1 MByte or 256 kByte additionally soldered

on rear side of the board (16-bit access)

DRAM 512 kByte, byte/word access (16-bit)

SRAM 64 kByte, byte/word access (16-bit)

EEPROM 93C46, 32-byte system data

Galvanic Isolation 2.5kV DC to/from process I/O

Common

Temperature Range

- Storage

- Operating

- Extended

-40°C to + 85°C (without battery)

0°C to +70°C

-40°C to +85°C

Operating Humidity 0 to 95% non-condensing

Weight 640g typ. without SMART-Modules, blank

panels or screw terminals

* Option

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Pepper-computer Modular Computers RS485 Instrukcja Użytkownika Strona 44