I/O Word Allocation Examples - Omron C120 System Manual

I/O Word Allocation Examples

3-4 I/O Word Allocation Examples
Example 1 C500 with
Slaves
CPU Rack
Expansion
I/O Rack
36
Word multipliers must be assigned only to the Masters to which I/O Link Units or
Optical I/O Units are connected. This message is not displayed for Masters to
which only Slaves are connected.
The following examples detail word allocations in the IR area.
With two Slaves connected to one Master, the Slaves are set to unit numbers 0
and 1. The order does not matter. The last Unit must be set as the terminator. If
only one Slave is connected, set it as Unit number 0 and set it as the terminator.
Masters
16 pts. IR 7
64 pts. IR 5 & 6
32 pts. IR 1, 2, 3, & 4
16 pts. IR 0
IR 28
16 pts.
IR 26 & 27
32 pts.
Asking for input of a word multplier
Indicates the word multplier is not yet set.
Mounting sequence of Master
Master symbol
I/O slot no.
Mounting sequence
Slave #0
32 pts.
32 pts.
16 pts.
16 pts.
#0
Slave #1
32 pts.
16 pts.
16 pts.
16 pts.
16 pts.
#1
Slave #0
16 pts.
16 pts.
64 pts.
#0
Section 3-4
Slave Rack
IR 18 & 19
IR 16 & 17
IR 15
IR 14
Set to unit #0.
Slave Rack
IR 24 & 25
IR 23
IR 22
IR 21
IR 20
Set to unit #1.
Set as terminator.
Slave Rack
IR 13
IR 12
IR 8, 9, 10, & 11
Set to unit #0.
Set as terminator.