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3-9
3 Installation and Wiring
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
3-2 Wiring
3
3-2-9 C
onnections f
or Protocol Macr
o
, S
e
rial Gate
w
a
y, No
-prot
ocol Mode
, an
d Modb
us-R
TU Sla
v
e Mode
This section describes the connections for Protocol Macro, Serial Gateway, and No-protocol Mode. Up
to 32 Boards or Units 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 to be connected to con-
firm support.
2
The total cable length for RS-422A/485 systems, including branch cables, is 500 m max. when
NT-AL001 Link Adapters are used. The baud rate and the communications distance some-
times depend on the remote device. Confirm the baud rates and communications distance
supported by connected devices.
3
Here, the maximum cable length is limited to 2 m when an NT-AL001 Link Adapter is con-
nected.
4
Branch lines must be a maximum of 10 m long.
3-2-9
Connections for Protocol Macro, Serial Gateway, No-protocol
Mode, and Modbus-RTU Slave Mode
Port
Config-
uration
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
NT-AL001
RS-232C
RS-422A
/485
Resistance ON
B500-AL001
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
RS-422A/485
interface
RS-422A/485
interface
RS-232C
interface
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...