Memory Submodule; Memory Submodule Evaluation; Overview Of Permissible User Submodules; Byte 0 - Siemens SIMATIC S5 CP 523 Manual

Technical Description
2.4

Memory Submodule

In Print mode, you require a user submodule, which you must configure with the following data in
off-line mode using a programmer:
• Message texts in DB 2 to 255
These DBs are independent of the DBs stored in the CPU. The DBs in the memory submodule
and the DBs in the CPU may have the same numbers.
• Printer interface parameters and configuration data for the message texts in DB 1.
You can use two types of user submodule:
• EPROM submodule
A UV erasing facility is required for erasing the submodule contents.
• EEPROM submodule
Submodule contents can be overwritten using a programmer.
Submodule Type
EPROM
EEPROM
2.4.1

Memory Submodule Evaluation

Several error flags can be stored by the CP in byte 0 in conjunction with the memory submodule.
Table 2-4. Error Flags in Conjunction with the Memory Submodule
Contents of

byte 0

X1 Memory submodule defective
H
X2 No message texts configured
H
X= Value for other half-byte irrelevant
2-10
Table 2-3. Overview of Permissible User Submodules
Order No.
6ES5 375 - 0LA15
6ES5 375 - 0LA21
6ES5 375 - 0LA41
6ES5 375 - 0LC11
6ES5 375 - 0LC31
6ES5 375 - 0LC41
Error Remedy
1. PLC POWER OFF
2. Plug in (new) memory submodule
3. PLC POWER ON
Configure message texts
Wrong or defective user submodule
plugged in?
EWA 4NEB 811 6044-02a
CP 523
Capacity
8 Kbyte
16 Kbytes
32 Kbytes
2 Kbytes
8 Kbytes
16 Kbytes