Memory Units - Omron SYSMAC C200H Installation Manual

Memory Units

3-2 Memory Units
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This Backplane has I/O Units mounted to it, but it has no CPU Unit of its own. The
additional Backplane must also have an Expansion I/O Power Supply mounted
to its rightmost position. This configuration of additional Backplane, Expansion
I/O Power Supply, and I/O Units is called an Expansion I/O Rack.
The CPU Rack and Expansion I/O Rack shown above are connected by a Con-
necting Cable (the length of Cable between individual Racks can be up to 10 m,
but the total length of Cable between all Racks must be within 12 m).
Remember that this whole configuration is still referred to as one PC. It is possi-
ble to add up to two Expansion I/O Racks to one CPU Rack. When installing I/O
Connecting Cables, cover any unused connectors with the caps provided.
The CPU Unit has a removable Memory Unit that stores the user program.
Memory Units are available with three types of memory; EPROM, EEPROM,
and RAM (refer to Section 2-6 Memory Units). If this is your first C200H, then you
must have a RAM Unit in order to write and test the program you are going to
use. If this is not your first C200H and you have a complete, tested program al-
ready, you can copy the program to an EPROM or EEPROM Unit for use on this
C200H. The EEPROM chip can be written to without removing the chip from the
Memory Unit by using an appropriate peripheral device (refer to Appendix A
Standard Models). The EPROM Chip may be programmed using a PROM Writ-
er or a FIT Ladder Unit. Then the EPROM Chip must be mounted inside the
EPROM Unit.
Note Only PROM Writer Model C500-PRW06 may be used with the C200H.
Section 3-2