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51
Unit Components
Section 2-2
3.
Terminating Resistance Switch
Set this switch to ON only for double-ended connection to a Host Link net-
work. This switch is factory-set to OFF.
RS-422/485
port on
CPM2C-
CIF11
Signal
conversion
Converts CMOS level (CPU Unit side) to
RS-422 (connected device side).
RS-422 (externally connected device) insulated
using DC/DC converter or photocoupler.
Function
Host Link, peripheral bus, or no-protocol connec-
tions.
RS-232C
port on
CPM2C-
CIF11
Signal
conversion
Outputs signals from the CPU Unit’s CMOS interface
without conversion.
Function
Host Link, no-protocol, 1:1 Link, or 1:1 NT Link con-
nections.
RS-422/485 Connection Example
Shield
Connector hood
Internal Configuration
CPM2C-CIF11
CPM2C-S CPU Unit
RS-422/485 port
(terminal block)
RS-232C port
(D-sub connector)
CMOS level
→
RS-422 conversion
Peripheral port
(CMOS level)
RS-232C port
(RS-232C)
SW1
Summary of Contents for CPM2C-S100C
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Page 3: ...CPM2C S Programmable Controller Operation Manual Revised September 2009 ...
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Page 180: ...158 One to one PC Link I O Response Time Section 7 4 ...
Page 222: ...200 Programming Example Section 8 3 ...
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Page 260: ...238 Support Software Appendix C ...
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