1-6
System Overview TI545/TI555 System Manual
1.2 Hardware Description
The
CPUs are housed in a Series 505 base assembly. A base assembly has
slots for the CPU or remote base controller (RBC), a power supply
, and the
I/O modules. Three base assembly models are currently available. Each has
the following number of slots for I/O modules.
•
Model PPX:505–6504, 4 slots.
•
Model PPX:505–6508, 8 slots.
•
Model PPX:505–651
1, 1
1 slots (redundant). Power supply and media.
•
Model PPX:505–6516, 16 slots.
Any base assembly may be used at any point in the system, depending upon
the number of I/O points required.
I/O modules are grouped into local and remote I/O categories depending
upon their physical location. The local I/O comprises those modules located
in the same base assembly as the CPU. If you install the CPU in base
assembly Model PPX:505–6516, the local I/O may consist of as many as 16
I/O modules. The base assembly containing the local I/O is designated 0.
Y
ou can connect up to 15 additional base assemblies to the system,
numbered 1–15. The I/O modules in these bases make up the remote I/O as
shown in Figure 1-2.
Individual I/O modules in the remote bases communicate with the CPU
through RBCs. The RBC in each remote base transmits information from
the I/O modules in that base directly to the CPU.
The power supply provides up to 55 W at +5 VDC and 3.75 W at –5 VDC for
use by the CPU and the I/O modules. The PPX:505–6660 power supply
operates at either 1
10 V
AC or 220 VAC on user
-supplied power
. A jumper on
the inside of the back of the module is used to select voltage. The model
PPX:505–6663 power supply operates on 24 VDC user
-supplied power
.
Series 505 Base
Assemblies
Local and Remote
I/O
Series 505
Power Supply
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