749
Connections to Serial Communications Option Boards
Appendix F
NT-AL001 Link Adapter Settings
The NT-AL001 Link Adapter has a DIP switch for setting RS-422A/485 communications conditions. When con-
necting the Serial Communications Option Board, refer to the DIP switch settings shown in the following table.
Note
When connecting to a CP-series CPU Unit, turn OFF pin 5 and turn ON pin 6.
Connections for Host Link Communications
Port connections for Host Link communications are shown in the following table. Up to 32 nodes can be con-
nected for 1:N connections.
Note
(1) Four-wire connections must be used for RS-422A/485 connections with Host Link communications.
(2) “Resistance ON” indicates the terminating resistance must be turned ON.
(3) “5 V power” indicates that a 5 V power supply is required for the Link Adapter. Refer to the Link
Adapter manual for details. A 5 V power supply is not required for a Link Adapter connected to an
RS-232C Option Board mounted on the CPU Unit because power is supplied from pin 6 of the con-
nector.
(4) 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.
Pin
Function
Factory setting
1
Not used. Always set this pin to ON.
ON
2
Built-in terminating resistance setting
ON: Connects terminating resistance.
OFF: Disconnects terminating resistance.
ON
3
2/4-wire setting
2-wire: Set both pins to ON.
4-wire: Set both pins to OFF.
OFF
4
OFF
5
Transmission mode (See note.)
Constant transmission: Set both pins to OFF.
Transmission performed when CTS signal in RS-232C interface is at high level:
Set pin 5 to OFF and pin 6 to ON.
Transmission performed when CTS signal in RS-232C interface is at low level:
Set pin 5 to ON and pin 6 to OFF.
ON
6
OFF
Port
Config-
uration
Schematic diagram, RS-232C ports
Schematic diagram, RS-422A/485 ports
Computer to
PLC: C-mode or
FINS com-
mands
PLC to com-
puter: FINS
commands
1:1
Computer to
PLC: C-mode or
FINS com-
mands
1:N
NT-AL001
RS-232C
RS-232C
RS-422A/485
5-V power
Resistance ON
NT-AL001
RS-232C
Resistance ON
Resistance ON
NT-AL001
RS-232C
RS-422A/485
5-V power
Resistance ON
(See note 1.)
Resistance ON
NT-AL001
RS-232C
RS-232C
RS-422A/485
5 V power
Resistance ON
NT-AL001
RS-232C
RS-232C
Resistance ON
NT-AL001
RS-232C
RS-422A/485
5 V power
Resistance ON
B500-AL001
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: ......