INSTALLATION
3-22
Hardware
and Installation User Manual
Both Series 500 and 505 I/O can be connected to a TI525/TI535 PLC as
distributed
I/O. The Series 505 IOCC (PPX:505–6830) is capable of addressing
the Series 500 DBCs (PPX:2109 or PPX:505–2103) in a Series 500 base
assembly.
If your application requires distributed I/O, you must install an IOCC in the
primary base assembly. You must also install the distributed bases with their
power supplies, DBCs, I/O modules, and cabling. See the installation
instructions
later in this chapter
.
3.6.1
Numbering Series 505 I/O Points
When
you configure the I/O, you assign an I/O point number to each point. Y
ou
do
this from the I/O Module Definition Chart on your programming device.
Local I/O consisting of a maximum of 512* I/O points can be configured when
you assign the I/O point numbers. This is obtained by using base Model
505–6516
(sixteen slots) and 32-point I/O modules.
The
PLC permits a maximum number of 1023 points for a local and distributed
system.
Y
ou need not assign the point numbers consecutively
. For example, in
a
distributed system, Base 2 can be assigned I/O point numbers 897–960.
However,
the highest point number that you can assign to a point is 1023.
You do not need to assign I/O point numbers to empty slots or to non-existent
slots
in logical bases having fewer than eight slots.
* I/O Module power consumption requirements may reduce the actual number of I/O points
that can be installed.
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