Optional Cartridges - Siemens SIMATIC S7-200 System Manual

Optional Cartridges

Cartridge
Memory cartridge
Memory cartridge
Real-Time Clock with battery
Battery cartridge
Battery
Size
Type
Memory Cartridge
There are restrictions for using memory cartridges between CPUs of a different model. Memory
cartridges programmed in a particular model number CPU can be read by CPUs with the same or
higher model number as shown in Table A-67:
Table A-67 Memory Cartridge Model Number Read Restrictions
Memory Cartridge
Programmed In A ...
CPU 221
CPU 222
CPU 224
CPU 224XP
CPU 226
The 64K and 256K memory cartridges are designed to work only with the new CPUs that have the
order number as shown here: 6ES7 21x--xx23--0XB0. Each "x" means that this digit is a don't
care.
You may have user programs stored on 32K memory cartridges originally programmed by older
CPUs (version "20", "21", or "22"). These cartridges can be read by the new CPUs, subject to the
model number restrictions in Table A-67.
Real Time Clock Cartridge
The Real Time Clock cartridge (6ES7 297--1AA23--0XA0) is designed to work only with the "23"
CPUs. The earlier version of the Real Time Clock cartridge (6ES7 297--1AA20--0XA0) is not
physically or electrically compatible with the "23" CPUs.
Description
Memory cartridge, 64K (user program, recipe, and data logging)
Memory cartridge, 256K (user program, recipe, and data logging)
Clock cartridge accuracy:
2 minutes/month at 25°C,
7 minutes/month at 0°C to 55°C
Battery cartridge
Data retention time: 200 days typical
Shelf life: 5 years
General Features
3 V, 30 mA hour, Renata CR 1025
9.9 mm x 2.5 mm
Lithium < 0.6 g
CPU 221, CPU 222, CPU 224, CPU 224XP, CPU 224XPsi, and CPU 226
CPU 222, CPU 224, CPU 224XP, CPU 224XPsi, and CPU 226
CPU 224, CPU 224XP, CPU 224XPsi, and CPU 226
CPU 224XP, CPU 224XPsi, and CPU 226
CPU 226
Technical Specifications
18 mm
Can Be Read By A ...
Appendix A
Order Number
6ES7 291- -8GF23- -0XA0
6ES7 291- -8GH23- -0XA0
6ES7 297- -1AA23- -0XA0
6ES7 291- -8BA20- -0XA0
Dimensions
10 mm
18 mm
465