![background image](http://html1.mh-extra.com/html/omron/nt620c/nt620c_operation-manual_744559061.webp)
2-7
Section
Connection to a PC by the NT Link (1:N)
48
2-7
Connection to a PC by the NT Link (1:N)
Connect NT620S/NT620C units to an OMRON PC in a 1:N connection by using
the NT link method.
To do this, the communication conditions must be set with the memory switches.
S
Setting NT link (1:N)
(Refer to “Setting the Host Communication Method” (page 70)
S
Setting the unit No. of the connected NT620S/NT620C
(Setting Unit Numbers (NT Link 1:N Only) (page 74))
With NT link (1:N), both RS-422A type (4-wire) and RS-485 type (2-wire) connec-
tions are possible. The NT link (1:N) cannot be used with the system programs
installed in NT620S-ST211(B) and NT620C-ST141(B) on shipment. The system
program must be changed by using the NT620-ZS3AT-EMV system installer.
2-7-1 Compatible PCs
The only OMRON PCs that can be connected in an NT link (1:N) are the C series
C200HX/HG/HE models.
When making a connection, check the series and model of the PC to which the
connection is being made, and the type of CPU unit that is installed. The follow-
ing is a list of the PCs that can be connected to the NT620S/NT620C via an NT
link (1:N).
PC Series
CPU Unit with Built-in
NT Link Function
CPU Units Connect-
able Using an Expan-
sion Communication
Board
Connectable to
C200HE-CPU42-(Z)E
C200HE-CPU32-(Z)E
C200HE-CPU42-(Z)E
C200HE
C series
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
C200HG-CPU63-E
C200HG
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU34-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU64-(Z)E
C200HX
2-7-2 Connecting the NT620S/NT620C Units
Referring to the illustrations below and using a cable appropriate for the CPU
unit’s connector, connect the NT620S/NT620C units and the PC using RS-232C/
RS-422 converter units (type NT-AL011).
A host link connection cable can be used as the RS-232C cable. For details on
making a connection cable, refer to Appendix G “Method for Making the Cable for
Connection to the PC” (page 301 of the appendix).
Caution
- After connecting the communication cable, be sure to lock the connectors with
the screws. Otherwise the cable may disconnect, causing operation to fail.
- The cable’s tensile load is 30 N. Do not subject it to loads greater than this.
Otherwise a discontinuity may occur, causing operation to fail.
Reference
Read the instruction manual provided with the NT-AL001 carefully.
Summary of Contents for NT620C
Page 1: ...Cat No V033 E1 5 Programmable Terminals NT620S 620C OPERATION MANUAL...
Page 2: ...NT620S 620C Programmable Terminals Operation Manual Revised April 2001...
Page 3: ...iv...
Page 5: ...vi...
Page 328: ......
Page 329: ......