Hardware Manual

Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22

Saia-Burgess Controls AG

Expansion of user memory

CPUs and expansion housings

3

Steps in the correct installation of extended user memory:

1) Switch off power supply and remove the cover of the PCD2

2) Plug the additional memory chip into the “USER PROG” socket.

Ensure correct alignment (markings on the socket and the chip must match), and

ensure that all pins on the chip are inserted into the socket

3) Set the jumper next to the socket correctly:

PCD2.M125/M135

Jumper

J1 (Memory type) RAM

EPROM

Flash-EPROM

Position

left; R 1)

right; E/F

right; E/F 2)

J2 (write-protection) Write protection activated2)

(only works for RAM and Flash-

EPROM)

Write protection deactivated2)

up; WP 1)

down

J4 (memory size <= 1 MBit

or > 1 MBit)

Memory size <= 1 MBit

Memory size > 1 MBit

up1)

down; >1MB

1) Jumper position on delivery: RAM, write-protection deactivated, memory size ≤ 1 Mbit

2) Write-protection only affects the chip in the USER PROG socket

4) Modify the hardware configuration in PG5 accordingly, and download the new

configuration

J1

J2

J4