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2. SYSTEM
URATION
QnA
2.1.2
l:n ratio of external device to PC CPUs
1 : n configuratiox
[System configuration 11
When external device
and QC24 connected by RS-232C line
(n: Maximum 32)
RS-232C interface
External devlce
RS-232C cable
0
/
I
I
I
-
-
RS-232C'
I
/
I
interface
~
~
~
~
~
~
f
a
5
RS-422
cable
RS-422/485
Interface
(Station No.: 31
)
0 0 0
/
~s-422/485
RS-422 cable
interface
\
Y
Maximum 32 stations
J
[System configuration 2 1
When external device
and QC24 connected by RS-422 line
RS-422/485 lnterfaqe
M
RS-422 cable
x
/
I
---
RS-232C'
I
/
I
interface
Interface
RS422/485
RS-422 cable
interface
~ ~ - 4 2 ~ 4 8 5
[Station No.: 31
)
pc
\Mode
:
1-6)
Y
Mawmum 32 stations
QC24 Functions That Can be Used
Dedicated protocol
Bidirectional protocol
Non procedure protocol
O*'
X
0
'1 On-demand function cannot be used.
Fig. 2.2 System Configuration (11)
2 - 2
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