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