552
CompoBus/S I/O Link Units
Section 9-6
(2) Unused bits in the CompoBus/S I/O Link Unit’s output word can be used
as work bits, but unused bits in the output slaves cannot be used as work
bits.
(3) Unused bits in input word cannot be used as work bits.
Determining the Node
Number and Making DIP
Switch Settings
Node Number
• The CompoBus/S I/O Link Unit is a Slave Unit with 8 input bits and 8 out-
put bits. The node number setting is made using the DIP switch; the
inputs and outputs share the same node number.
• The range of possible node number settings is determined by the type of
PLC the Master Unit is mounted to and the settings on the Master Unit.
For details refer to the CompoBus/S Operation Manual.
DIP Switch Settings
Use the DIP switch to set the CompoBus/S I/O Link Unit’s node number, com-
munications mode, and the status of output data when a communications
error occurs.
Note
Always turn OFF the power supply before changing the DIP switch settings.
Wiring the CompoBus/S
Communications Path
Wire the CompoBus/S communications path as shown in the following dia-
grams.
Pin labels
Contents
1
2
4
8
DR
HOLD
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 = ON, 0 = OFF
ON
OFF
ON
OFF
Long-distance communications mode (See note.)
High-speed communications mode
Retain inputs after a communications error.
Clear inputs after a communications error.
ON
1
2
4
8
DR
HOLD
SW1
8 4 2 1
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
NODE NUMBER
SW1
Node Number
Setting
Note:
The long-distance communications
mode can be used only when one of
the following Master Units is
connected: C200HW-SRM21-V1,
CQM1-SRM21-V1, or SRM1-C0
@
-V2.
BD L
BD H
Connect the CompoBus/S Communications Cable.
BD L
BD H NC (BS+)
NC
NC (BS
−
)
These terminals are not used. They can
however be used as communications power
supply relay terminals.
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
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