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

3.12.5 PCD1.M125 and PCD1.M135PCD1.M125 and PCD1.M135

The user memory for these CPUs can be expanded as follows :

CPU Typ Expansion option Available memory for

extension memory1)

PCD1.M1x5 RAM: 512 KBit / 128 KByte

EPROM: 128 KBit / 128 KByte

Flash-EPROM: 448 KBit / 112 KByte

128 KByte

128 KByte

128 KByte

1) The base memory released by the extended memory can be configured as extension memory and

used to store texts and DBs

As the price differences between the different memory chips are very small, we rec-

ommend the use of the following types:

Memory type Item-no. Typical codes Size

RAM 4 502 7013 01)

4 502 7175 01)

BS62LV1025 PC-70

LP621024D-70LL

SRM20100LLC70

HY628100ALP-70

GM76C8128CLL-70

MEL M5M51008BP-70L

HM628512LP-5

KM684000BLP-SL

K6T4008C1B-DB55

1 Mbit / 128 Kbytes

4 Mbits / 512 Kbytes

EPROM2) 4 502 7126 0 AM27C010-90 DC

NM27C01Q-90

M27C1001-10F1

1 Mbit / 128 Kbytes

Flash EPROM3) 4 502 7141 0

4 502 7224 0

AM29F010-70PC

SBE29F040

AM29F040B-90PC

1 Mbit / 112 Kbytes3)

4 Mbits / 448 Kbytes3)

1) Where RAM components not approved by Saia are used, there is a risk of losing data

2) The use of EPROMs is obsolete; use Flash EPROM instead

3) To hold the configuration, a portion of memory is lost, so for this chip,112 Kbytes rather than 128 are available to

the user