755
Connections to Serial Communications Option Boards
Appendix F
(2) The terminating resistant setting shown above is an example for the NT631/NT631C. The setting
method varies with the PT. Refer to the manual for you PT for details.
Connections for Serial Gateway and No-protocol Communications
This section describes the connections for Serial Gateway, and no-protocol communications. Up to 32 nodes
can be used for 1:N connections.
Note
(1) The maximum cable length for RS-232C is 15 m. The RS-232C standard, however, does not cover
baud rates above 19.2 Kbps. Refer to the manual for the device being connected to confirm support.
(2) The combined cable length for RS-422A/485 is 500 m including branch lines.
(3) The maximum cable length is limited to 2 m when an NT-AL001 Link Adapter is connected.
(4) Branch lines must be a maximum of 10 m long.
Port
Configu-
ration
Schematic diagram
RS-232C
1:1
RS-232C
1:N
Resistance
ON
NT-AL001
Resistance ON
NT-AL001
RS-232C
RS-232C
interface
RS-232C
RS-422A/485
RS-232C
interface
NT-AL001
RS-232C
RS-422A/485
Resistance
ON
RS-422A/
485
interface
5 V power
NT-AL001
RS-232C
RS-232C
RS-422A/485
RS-232C
interface
NT-AL001
RS-232C
RS-422A
/485
Resistance ON
RS-422A/485
interface
RS-422A/485
interface
B500-AL001-E
Resistance ON
Resistance
ON
Resistance ON
NT-AL001
NT-AL001
RS-232C
RS-232C
RS-232C
Resistance ON
5 V power
Resistance
ON
RS-422A/485
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...
Page 855: ......