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參數(shù)資料
| 型號： | TSXSCP114 |
| 英文描述： | COMMS MODULE RS422/RS485 |
| 中文描述： | 通訊科模塊RS422/RS485 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 316K |
| 代理商： | TSXSCP114 |
40050/6
Modicon TSX Nano PLCs
Nano PLCs
Functions
I/O extension
(1)
Each Nano base PLC can be extended using an I/O
extension. This extension is created by one of the PLCs
with 10, 16 or 24 I/O. The function of each PLC is defined
by the position of the coding selector switch :
i
Position 0 : base PLC
i
Position 1 : I/O extension
The extension link cable between the base PLC and the
I/O extension is a shielded, twisted pair and is no more than
200 metres long.
Peer PLCs
(1)
Up to 3 peer PLCs, communicating via common words, can
be connected to the base PLC. In this case, only the base
PLC can receive an I/O extension. The function of each
PLC is defined by the position of the coding selector switch.
I/O addressing of peer PLCs is identical to that of the base
PLC.
The extension link cable between the base PLC and PLC
extensions is a shielded, twisted pair and is no more than
200 metres long.
Inter-PLC communication
Each PLC has 2 reserved (IW) and 2 reserved (QW) words
for exchanging data between PLCs. These exchange words
are updated automatically. For each PLC, the user program
is only able to :
i
Write to the 2 %QW output words
i
Read the 2 %IW input words
Displaying the I/O, internal bits and PLC status
The results of the self-tests performed continuously by the
base PLC, peer PLCs and I/O extensions are displayed on
the front panel by 4 indicator lamps :
i
RUN : PLC status
i
ERR : internal fault
i
COM : data exchange on the extension link
i
I/O : I/O fault
I/O display
The state of each I/O is displayed on the front panel of the
PLC by an indicator lamp : when the lamp is on, the I/O is
active, when the lamp is off, the I/O is inactive.
Internal bits display
When the PLC system bit %S69 is set to 1, the first
indicator lamps show the state of 8 or 16 defined internal
bits (%M120…%M127 or %M112…%M127).
Dedicated I/O
The RUN/STOP input will launch or stop program execution
from an external order. After configuration, one of the first
6 inputs (%I0.0 to %I0.5) can be assigned to this function.
One of the first 4 outputs (%Q0.0 to %Q0.3) can be
configured to indicate to the user that the PLC program is
not running (STOP or fault).
(1) TSX 07 30/31 PLCs can no longer receive an I/O extension or peer PLC when the integrated Modbus link is in use.
TSX 07 32/33
ii
28 and TSX 07 3L
ii
28 PLCs cannot take an I/O extension or peer PLC.
0
21
7
0
1
23456
7
1
230
7
0
1
23456
7
0
21
7
Peer PLC & extension link
Base
PLC
PLC 2
PLC 3
PLC 4
I/O
extension
1
230
7
0
21
7
Base
PLC
1 2 3 4 5
0
C
1 2
0
C
RUN/STOP
Base PLC
RUN ERR
COM
I/O
I
O
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
RUN ERR
COM
I/O
I
O
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
10 11 12 13
I/O
extension
Extension link
Nano PLCs with 10 and 16 I/O
Nano PLCs with 24 I/O
State of 8 internal bits if %S69 = 1
State of 16 internal bits if %S69 = 1
System bit % S69
System bit % S69
PLC 4
Base
PLC
IW
QW
IW
QW
IW
QW
QW
IW
QW
IW
QW
IW
PLC 2
PLC 3
Characteristics :
pages 40050/9 to 40050/11
References :
pages 40050/12 to 40050/14
Dimensions :
page 40050/15
Connections :
pages 40050/16 to 40050/19
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