![background image](http://html1.mh-extra.com/html/omron/cvm1-series/cvm1-series_operation-manual_742102032.webp)
17
Cable Length and Terminating Resistance Settings
Section 2-4
Transmission Line
and Terminating
Resistance Switches
(WIRE and TER)
For details on setting these switches, refer to
3-3-5 Setting the Transmission
Line and Terminating Resistance
2-4
Cable Length and Terminating Resistance Settings
Cable Length
• The basic structure of the PC Link system has a main line with extending
branch lines. The total length of the cables in the PC Link system (includ-
ing the main line and branch lines) must not exceed 500 m.
L
1
+ L
2
+ L
3
+ ... L
n
+ I
1
+ I
2
+ ... I
n-1
≤
500 m
• The individual branch lines must not exceed 10 m.
I
1
≤
10 m, I
2
≤
10 m, ... and I
n-1
≤
10 m
Name
Function
Left side
Right side
WIRE
Transmission line
setting
Four-wire method
(Set when using electrical
and optical fiber cable.)
Two-wire method
(Set when using electrical
cable only.)
TER
Terminating resis-
tance setting
Terminator connected.
Terminator disconnected.
WIRE
4
↔
2
TER
ON
↔
OFF
PC LINK
Terminating Resistance Setting Switch
Transmission Line Selector Switch
Node 0
Terminator ON
I1
I2
I (n
−
1)
L1
L2
L3
Ln
Node 1
Terminator OFF
Node 2
Terminator OFF
Node n-1
Terminator OFF
Node n
Terminator ON
Содержание CVM1 Series
Страница 1: ...Cat No W434 E1 01 SYSMAC CVM1 CV Series CVM1 LK401 PC Link Unit This manual is PDF file only...
Страница 2: ...CVM1 LK401 PC Link Unit Operation Manual Produced July 2004...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 41: ...26 Differences from Earlier PC Link Units Section 2 6...
Страница 77: ...62 Replacement Checklists Section 3 6...
Страница 95: ...80 Link Adapter Specifications Appendix B...
Страница 101: ...86 PC Link System I O Response Time Appendix C...
Страница 103: ...88 PC Link Settings and Status Areas Appendix D...
Страница 105: ...Revision History 90...