![background image](http://html1.mh-extra.com/html/omron/cj1w-scu22/cj1w-scu22_operation-manual_742498053.webp)
1-13
1 Introduction
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
1-5 System C
onfigu
ration
s
1
1
-5-1
P
rotocol Ma
cro
, Ser
ial Gate
w
a
y, No-protocol, or Mod
b
us-R
T
U
Sla
v
e
*1
The maximum total cable length for RS-422/485 is 500 m when an NT-AL001 Link Adapter is used. The length
includes branch lines. Communications distance may vary by the device being connected. Refer to the manual
for the device.
*2
The maximum length is restricted to 2 m when an NT-AL001 Link Adapter is connected.
*3
The maximum branch line is 10 m.
PLC:
General-
purpose
external
device
Connection configuration
Required
devices
Connected
serial
communica-
tions
port/Remarks
1:N
Port: RS-
422A/485
Connection of a Serial Communications Unit to devices with RS-232C
or RS422A/485 ports
CJ1W-SCU32
Port 1 or 2
CJ1W-SCU42
Port 1
NT-AL001 Con-
verting Link
Adapter
Converts
between RS-
232C and
RS-422A/485
B500-AL001
Link Adapter
For RS-422A/485
branching
5-V power sup-
ply
For NT-AL001
Link Adapter
RS-422A/485
Resistance ON
RS-422A/485 interface
Resistance ON
RS-422A/485
RS-422A/485 interface
Resistance ON
RS-422A/485
RS-232C interface
Resistance ON
5-V power
B500-AL001
NT-AL001
RS-232C
RS-232C
RS-232C
Resistance ON
Resistors ON
*1
*1
*1
*2
*3
Содержание CJ1W-SCU22
Страница 192: ...4 Using Protocol Macros 4 56 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 250: ...6 No protocol Mode 6 22 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 460: ...A Standard System Protocol R 126 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 473: ...Index 1 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494 I Index...