26
The
SYSMAC BUS/2 Slave Racks use the same Expansion I/O Backplane and
Power
Supply Unit as the Expansion I/O Racks, but a
Remote I/O Slave Unit is
mounted
instead of the I/O Interface Unit and the Slave Rack is connected from
the
Remote I/O Slave Unit to a Remote I/O
Master Unit on the CPU or Expansion
CPU Rack. Refer to the
SYSMAC BUS/2 Remote I/O System Manual
for
details.
2-3 Rack Components
This section describes the main components that are used to construct CPU,
Expansion CPU, and Expansion I/O Racks.
2-3-1 CPUs
Six
CPU models are available, the CV500-CPU01-EV1, CV1000-CPU01-EV1,
CV2000-CPU01-EV1, CVM1-CPU01-EV2, CVM1-CPU11-EV2, and
CVM1-CPU21-EV2. The following figure shows the CV1000-CPU01-EV1.
Indicators
Expansion
Data Memory
Card compartment
(CV1000, CV2000, or
CVM1-CPU21-EV2 only;
optional)
Memory Card (option
-
al), DIP switch and
battery compartment
Do not pull out the
memory card while the
Memory Card indicator
is lit.
Protect keyswitch
Used to write-protect PC
setup and user memory
.
Peripheral device
connector
Host link connector
Connector XM2A-0901
Cover: XM2S-0911
(One set included)
RS-422/RS-232C selector
Memory Card indicator
Lit when power is supplied
to the Memory Card.
Note The Memory Unit is built into CVM1/CV-series PCs; it is not necessary for the
user to install one, as is necessary for some C-series PCs.
Protect Keyswitch The protect keyswitch write-protects the current PC Setup and user program
memory.
The user program memory can
also be write-protected by the using the
“Protect UM” function from the CVSS. When set to “SYSTEM PROTECT” this
switch
will write-protect the entire user program memory even if only part of it is
protected using the “Protect UM” function from the CVSS.
SYSMAC BUS/2 Slave
Racks
Rack Components Section 2-3
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