Setup 3
3 - 2
Function
Abbrev.
Function
Address
Sequential
Display
Master Unit control
MC
00
H
(0)
U0=00
Master unit digital I/O
MD
40
H
(64)
U1=40
Master Unit Analog I/O***
MA
80
H
(128)
U2=80
1
st
Digital Expander
D1
C0
H
(192)
U3=00
2
nd
Digital expander
D2
D0
H
(208)
U4=d0
3
rd
Digital expander
D3
E0
H
(224)
U5=E0
The OFFSET addressing mode is more convenient to use as only one address
setup is required for each network connection. For example changing the Master
Unit Control,
MC
from 00
H
to 03
H
will automatically cause
MD
=43
H
,
MA
=83
H
,
D1=C3
H
, D2=D3
H
, D3=
E3
H
.
Variable Mode
In the VARIABLE mode function addresses are independent of each other and
can range from 00
H
to FF
H
. For this mode, each function
MC
,
MD
,
MA
, D1, D2,
and D3 must be entered. As long as addresses are not duplicated, they can take
on any of the 256 possibilities. The VARIABLE mode must be used with some
software packages and systems of more than 16 I/O PLEXER network
connections.
The loading of selected function addresses into the I/O PLEXER is explained
after the description of baud rates and protocol handshake type found on page 3-
4
.
*** Any function address not supported by the unit will default to
the master unit control address to conserve network address usage.
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