Technical Description S5-115F Manual
2.3 Accessories
You can optimize the degree of expansion of your programmable controllers with the accessories
listed in 2.3.1 through 2.3.4.
2.3.1 Backup Battery
For each S5-115F submodule there is minimum one backup battery indispensable. They maintain
the program and data when the S5-115U is switched off. The backup battery has a service life of
approximately two years but, for safety reasons, it must be replaced every year.
Note
The existing regulations on dangerous materials must be observed when transporting
lithium batteries!
2.3.2 Memory Submodules
The following three memory submodule types are available for the S5-115F to store the control
program or to transfer the program to the PLC:
• The EPROM submodule is a read-only memory. Program an EPROM module on a PG 635,
PG 675, PG 685, PG 695 or PG 750 programmer. Use an ultraviolet erasing device to erase the
submodule's contents ( 2.1.1).
• The EEPROM submodule is a read-only memory. Program and erase an EEPROM submodule on
a PG 635, PG 675, PG 685, PG 695 or PG 750 programmer.
• The RAM submodule is used, in addition to program storage, to test a control program during
system startup. It should be used as a program memory only when backup is guaranteed.
Safety mode in the S5-115F requires EEPROM/EPROM submodules as code memories for the con-
trol program. The system automatically switches to Test mode in the case of other submodules
(RAM).
The individual memory submodules are available with different memory capacities as shown in
Table 2-3 and 2-4.
Table 2-3. Memory Submodules for Safety Mode
Order Number / Type Capacity * Programming Number
6ES5 375-0LA15 / EPROM 8x2
10
Byte 11
6ES5 375 -0LA21 / EPROM 16x2
10
Byte 12
6ES5 375 -0LA41 / EPROM 32x2
10
Byte 17
6ES5 375-1LA15 / EPROM 8x2
10
Byte 411
6ES5 375-1LA21 / EPROM 16x2
10
Byte 412
6ES5 375-1LA41 / EPROM 32x2
10
Byte 417
6ES5 375-0LC31 / EEPROM 8x2
10
Byte 211
6ES5 375-0LC41 / EEPROM 16x2
10
Byte 212
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* 2 Kbytes (=2 x 2
10
Byte) correspond approximately to 1000 STEP 5 statements.
2-12
EWA 4NEB 811 6148-02
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