140CRA21120模块现货

140CRA21120

注：当前面板开关处于以下状态时，CPU硬件默认为桥接模式
设置为RTU或ASCII模式。连接控制器时，面板设备连接
对于CPU，Modbus端口可以与控制器通信
连接，并登录Modbus Plus网络上的任何节点。
ASCII通信端口参数
波特率2400
奇偶
数据位7
停止位1
设备地址后面板旋转开关设置
RTU通信端口参数
波特率9600
奇偶
数据位8
停止位1
设备地址后面板旋转开关设置
ASCII码
RTU
不使用mem
关
记忆
prt
CPU模块
150 840使用100 00 2002年9月
有效通信端口参数
波特率19200 1200
9,600 600
7,200 300
4,800 150
3,600 134.5
2,400 110
2,000 75
1,800 50
奇偶校验启用/禁用奇数/偶数
数据位7/8
停止位1/2
设备地址1…247
CPU模块
840使用100 00 2002年9月151
后面板
开关
两个旋转开关（请参阅下图和下表）位于后部
CPU的面板。它们用于设置Modbus Plus节点和Modbus端口
地址。
SW1（顶部开关）设置地址的高位（十位）；SW2（底部
开关）设置地址的低位数字。下图显示了
示例地址11的正确设置。
下图显示了SW1和SW2。
下表显示了SW1和SW2地址设置。
注：这些开关可设置的高地址为64。
SW1和SW2地址设置
节点地址SW1和SW2
SW1（顶部）
SW2（底部）
CPU模块
152 840使用100 00 2002年9月
Modbus
连接器
皮诺特
所有Quantum CPU均配备九针RS-232C连接器，支持：
Modicon的专有Modbus通信协议。以下是Modbus：
九针和25针连接的端口引脚连接。
Modbus端口
皮诺特
连接
下图显示了九针和25针的Modbus端口引脚连接-
引脚连接。
注：尽管Modbus端口在电气上支持现有的Modbus电缆，但
建议使用Modbus编程电缆（零件号990NAA26320或
990NAA26350）。该电缆设计用于安装在
量子CPU或NOM模块。

140CRA21120
 

140CRA21120

Note: The CPU hardware defaults to bridge mode when the front panel switch is
set to RTU or ASCII mode. When networking controllers, a panel device connected
to the CPU Modbus port can communicationunicate with the controller to which it
is connected, as well as log into any nodes on the Modbus Plus network.
ASCII Communication Port Parameters
Baud 2,400
Parity Even
Data Bits 7
Stop Bits 1
Device Address Rear panel rotary switch setting
RTU Communication Port Parameters
Baud 9,600
Parity Even
Data Bits 8
Stop Bits 1
Device Address Rear panel rotary switch setting
ASCII
RTU
not used mem
off
mem
prt
CPU Modules
150 840 USE 100 00 September 2002
Valid Communication Port Parameters
Baud 19,200 1,200
9,600 600
7,200 300
4,800 150
3,600 134.5
2,400 110
2,000 75
1,800 50
Parity Enable/Disable Odd/Even
Data Bits 7 / 8
Stop Bits 1 / 2
Device Address 1 ... 247
CPU Modules
840 USE 100 00 September 2002 151
Rear Panel
Switches
Two rotary switches (refer to the illustration and table below) are located on the rear
panel of the CPU. They are used for setting Modbus Plus node and Modbus port
addresses.
SW1 (the top switch) sets the upper digit (tens) of the address; SW2 (the bottom
switch) sets the lower digit (ones) of the address. The illustration below shows the
correct setting for an example address of 11.
The following figure shows SW1 and SW2.
The following table shows the SW1 and SW2 address settings.
Note: The highest address that may be set with these switches is 64.
SW1 and SW2 Adress Settings
Node Address SW1 SW2
SW1 (TOP)
SW2 (BOTTOM)
CPU Modules
152 840 USE 100 00 September 2002
Modbus
Connector
Pinouts
All Quantum CPUs are equipped with a nine-pin RS-232C connector that supports
Modicon’s proprietary Modbus communication protocol. The following is the Modbus
port pinout connections for nine-pin and 25-pin connections.
Modbus Ports
Pinout
Connections
The following figure shows the Modbus port pinout connections for nine-pin and 25-
pin connections.
Note: Although the Modbus ports electrically support existing Modbus cables, it
isrecommended that a Modbus programming cable (Part # 990NAA26320 or
990NAA26350) be used. This cable has been designed to fit under the door of a
Quantum CPU or NOM module.
Quantum CPU or NOM module.