Installation manual

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1
Memory structure
Modicon TSX Micro
automation platform 1
TSX 37 05/08/10/21/22 PLCs
The memory structure of TSX Micro PLCs consists of two distinct zones:
b An internal RAM memory designed to receive the application (data, program and
constants) of
v 11 Kwords for TSX 37 05/08 PLCs,
v 14 Kwords for the TSX 37 10 PLC,
v 20 Kwords for TSX 37 21/22 PLCs.
b A Flash EPROM memory of:
v 12 Kwords for TSX 37 05/08 PLCs,
v 16 Kwords for TSX 37 10/21/22 PLCs
designed to back up the application program (11 or 14 Kwords maximum) and to
back up 1024 %MW internal words in the event of a battery failure or no battery.
For TSX 37 21/22 PLCs, the internal RAM memory can be extended via a 32, 64 or
128 Kwords PCMCIA memory card, either RAM or Flash EPROM. The same
memory card incorporated the possibility of contained a storage zone for additional
data, e.g. for production data and manufacturing recipes.
These cards can be used to extend the PLC internal memory for storing the
application program and constants.
Two types of memory card are available:
b Battery-backed RAM type memory card
Used in particular during application program creation and debugging, this card
enables all application transfer and modification services in online mode.
The memory is backed up by a removable battery integrated in the memory card.
b Flash EPROM type memory card
Used when the debugging of the application program is complete, this card enables
one global transfer only of the application and avoids the problems of backup via
battery.
A third type of card can also be used to store additional data:
b Battery-backed RAM type memory card or battery-backed RAM and Flash
EPROM
Used particularly in association with the Modem link, these are used to extend the
processor's internal memory, and also to store recipe or data log for later consultation
via a telephone link.
The RAM memory is backed up by a removable battery integrated in the
memory card.
Another type of PCMCIA memory card is available:
b Backup type memory card (for TSX 37 21/22 PLCs)
Previously loaded with the application program, this card is used to reload the
application program into the internal RAM memory and the internal Flash EPROM
memory of the processor, without requiring the use of a programming terminal.
The TSX PRG LDR module is designed to simplify duplicating or updating
applications on Nano and TSX Micro PLCs without the need for a programming
terminal. An application (15 Kwords maximum in internal RAM) can be transferred
from a PLC in the TSX PRG LDR module (and saved within it), then transferred from
the TSX PRG LDR module to the PLC.
The front panel of the TSX PRG LDR module comprises:
1 A cord for connecting to the PLC terminal port.
2 Four operation indicator LEDs.
3 A W/R button which selects the program transfer direction (PLC V module or
module V PLC).
4 A GO button to start the transfer.
5 A Write Only switch which prevents PLC V module transfer.
6 A Program Protect switch which protects the PLC application as read-only after
the transfer.
Memory structure
PCMCIA memory extension cards for TSX 37 21/22 PLCs
1
2
4
3
56
Program loader
F
unctions:
p
ages 1/8 and 1/9
Characteristics:
pages 1/13 and 1/14
References:
pages 1/15 and 1/16
Dimensions, mounting:
page 1/17
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: [phone] ● www.stevenengineering.com
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