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3BHE004573R0141串行链路配套卡件
显示和连接模块外壳
1 16个黄色LED，用于显示信号状态
输入2个LED“总线错误”、“过载”和“电源”
指示操作条件和错误（参见“诊断和显示”部分）
3 CS31总线连接器（输入）
4 CS31总线连接器（输出）
5 16个输入连接器
6个PG11电缆密封套，用于24 V DC电源7 24 V DC和PE的端子位于可拆卸的盖子。可以从顶部进入模块用于设置模块的DIL开关地址也在封面下面。
8标签字段9安装钻孔（另见“尺寸标注图纸”）
电气连接下图显示了电气连接。必须在每个模块上设置地址，以便中央单元可以正确访问输入和输出。
关于项目的详细描述“寻址”包含在章节中中央单元和耦合器的“寻址”。
模块地址设置在位于在模块顶部的盖子下面。短路或过载时的行为
传感器：
传感器输入接头处的电源连接通过温度相关电阻器连接（PTC热敏电阻）至螺钉式+24 V DC输入端终端。如果传感器发生过载或短路，PTC将起过载保护作用。A.电压监测电路产生错误信息在欠压情况下（LED“过载”亮起）。下图演示了该函数。短路或过载消除后，模块可以再次正常运行。红色LED“过载”熄灭。发送给主机的错误消息：如果发生短路或过载，错误消息连同错误代码一起发送给主服务器4号。在每种情况下，信道0都被视为故障，独立于真正涉及的渠道。错误消息保持至少5秒，甚至如果短路或过载已在时间更短。
有关诊断的更多信息，请参阅用作总线的中央单元和耦合器的说明大师。CS31系统总线连接是电气隔离的来自其余模块组件。该模块提供诊断功能（参见章节“诊断和显示”）。
Displays and connections at
module housing
1 16 yellow LEDs for displaying the signal statuses of
the inputs
2 LEDs ”Bus Error”, ”Overload” and ”Supply”
indicating of operating conditions and errors (see
section ”Diagnosis and displays”)
3 CS31 bus connector (input)
4 CS31 bus connector (output)
5 16 connectors for the inputs
6 PG11 cable gland for the 24 V DC power supply
7 The terminals for 24 V DC and PE are located under
a removable cover. It is accessible from the top of
the module. The DIL switch for setting the module
address is also under the cover.
8 Labelling fields
9 Bore holes for mounting (see also ”Dimensioned
drawing” at the end of this description)
Electrical connection
The following figure shows all details necessary for the
electrical connection.An address has to be set on each module, so that the
central unit can access the inputs and outputs correctly.
A detailed description concerning the item
”Addressing” is contained in the chapters
”Addressing” of the central units and couplers.
The module address is set on the DIL switch located
under the cover at the top side of the module.Behaviour in case of short–circuit or overload at
sensors:
The supply connections at the sensor input connectors
are connected via a temperature–dependent resistor
(PTC thermistor) to the +24 V DC input of the screw–type
terminals. If an overload or a short–circuit occurs with a sensor, the PTC will work as an overload protection. A
voltage monitoring circuitry generates an error message
in case of undervoltage (the LED ”Overload” lights up).
The following figure demonstrates the function.After the short–circuit or overload has been eliminated,
the module can operate correctly again. The red LED
”Overload” goes out.
Error message to the master:
In case of a short–circuit or an overload, an error
message is sent to the master, along with the error code
No. 4. In each case, the channel No. 0 is given as faulty,
independent of the really involved channel. The error
message is kept up for a period of at least 5 seconds, even
if the short–circuit or overload has been remedied in a
shorter time.
Fur further information concerning diagnosis, see the
descriptions of the central units and couplers used as bus
masters.The CS31 system bus connection is electrically isolated
from remaining module components.
The module offers diagnosis functions (see chapter”Diagnosis and displays”).
