就班的描述。
3.12.1 Presentation Menu (演示菜单)
Figure 3-3 Main and Sub Menus of the Presentation Menu
图3-3 关于演示菜单的主要和次要菜单
Use up and down keys to select language [ZZ] and unit [ZZ] from list. 使用上下键在目录里选择语言和单元
3.12.1.1 Set Language (设置语言) 3.12.1.2 Set unit (选择单元)
3.12.2 Set Object (设置目标程序)
There up and down keys to select that can be selected. 使用上下键选择你想要得
· Standard roll (if both load cell A and B are connected to the roll) 标准轧辊 (如果压力传感器A和B连接在轧辊上)
Standard roll (标准轧辊)
Two load cells with separate signals 两个压力传感器分开发信号
· Single side measurement (if only load cell A is connected to the roll) 单边测量 (如果只有一个压力传感器A连接在轧辊上)
Single side measurement (单边测量)
One load cell signal (一个压力传感器发信号)
When single side measurement is selected the measured signal is multiplied by two and presented as web tension on display and analog output.。
选定单边测量时，张力测量装置把测量信号乘以2显示并以模拟量输出。
The nominal load is selected from the list below and must be the same as the nominal load on the cell name plate. The load cell nominal load is displayed in KN and 1bs on the same row. The following nominal loads can be selected: 额定负载是在下面列表中经选择的，必须与标牌上的额定负载相同；压力传感器额定负载显示为KN 和1bs (镑)
3.12.4 Zero Set (调零)
NOTE
Zero set must be done with no tension applied to the roll.
调零时必须轧辊上无施加压力
3.12.5 Set Wrap Gain (设置包角增益)
To be able to present actual web tension on the display, the ratio between tension and measured force on the load cell must be determined.
能在显示器上呈现实际的纸幅张力，比率在压力与设定过的压力传感器规定值之间。 This ratio is a scaling factor called Wrap Gain. 这个比率是包角增益的换算系数。
The Wrap Gain depends on the web’s wrap angle on the measuring roll and the orientation of the load cells. Therefore, Wrap Gain depends on the actual installation. This gives:
T (tension)=Wrap Gain×FR(force of web tension in load cell measuring direction) 增益由测量轧辊和定向压力传感器决定，因此增益收实际安装的影响。 这个公式：
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T(张力)= 增益×FR(强制压力传感器测量指示的纸幅张力) 包角增益是由缠绕在测量辊的角度和压头的定位决定。
There are two ways to find out the ratio between web tension and measured force on the load cells, by Hanging weights or by Calculation.
有两个方法了解到在纸幅张力和测量过的强制压力传感器的比率
· With hanging weights (Menu Hang Weight) 关于悬挂砝码 (Hang Weight 菜单) String a rope that follow the web path exactly and apply a known weight. 用绳子顺着幅面的方向准确悬挂上已知砝码
The resulting known weight simulates the actual web tension and the electronics measures the resulting force on the load cells caused by the applied weight.
用已知重量重物模拟实际幅面材料张力，装置测量施加在压头最终的力。
When both web tension (T) and the corresponding measured force (FR) are known the tension electronics calculates the ratio T/FR and stores the value as Wrap Gain.
张力测量装置用两个幅面张力T和对应的已知对应力FR计算出比率T/FR并把该数值作为包角增益存入。
When web tension is applied to the roll the tension electronics calculates web tension by multiplying the measured force on the load cells with the Wrap Gain.。
张力测量装置测量棍子上幅面张力是作用于棍子上的力再乘以幅面包角。
After the hanging weight procedure the wrap gain calculated by the tension electronics can be found in the Enter Wrap Gain menu.
通过悬挂重物的过程，张力测量装置在已有的菜单Enter Wrap Gain menu计算出包角。 · By calculation (Menu Enter Wrap Gain) 计算 (菜单Enter Wrap Gain )
Wrap Gain is a scaling factor which corresponds to the ratio between Web Tension (T) and the force component (FR) from web tension that is acting in the load cell measuring direction.
包角增益是一个比例因子，它是幅面张力和压头测得的实际的力的比率。
The Wrap Gain range is 0.5-10. If you try to set the wrap gain outside this range, the message “Out Of Range” will be shown on the display. The wrap gain can be set with a resolution of 0.01.
增益范围是0.5-10 如果你设法调整增益在这个范围以外，信息提示“Out Of Range (超出范围)”就会显示出来，增益精度设置为0.01
Examples describing the principle of calculating Wrap Gain:
描述计算增益的法则：
See calculation of Wrap Gain in Appendix (B,C,D or E) for installed load cell type. 领会在附录 (A,B,C或D)中关于安装压力传感器的不同类型，其增益的计算 3.12.8 Miscellaneous Menu 混合菜单 3.12.8.1 Profibus
? Profibus On/Off 开/关
The Profibus can be enabled or disable. Profibus可被用或不可用
? Profibus address Profibus 地址
If the Profibus is enabled, the Profibus must be set in the range 000-125. 如果Profibus可用的，地址必须在000-125的范围内。 Read more about the Profbus in Section 3.13. 3.12.8.2 Set Factory Default 设置出厂默认值
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? Set factory default
The parameter are set as on delivery except Maximum load A and Maximum load B. 除了最大负载A和最大负载B其他的参数都被传输。
Read more in Appendix A.4 Factory Default Settings. 3.12.9 Service Menu 服务菜单
The service menu has parameters that can be viewed only and parameters that can be set. If single side measurement is selected in menu SetObject input B is not connected.
保养菜单有只读参数和也有可设置的参数。如果选择单边测量输入B将不被连接。…
? Parameters that can be viewed only: 只读的参数
- Software version number 软件版本号 - Maximum load A 最大负载A
Displays maximum load since last reset 显示新的设置后的最大负载 - Present offset A 显示偏移量A
Displays zero offset at last zero set 显示新设置后的零偏移量 - Maximum load B 最大负载B
Displays maximum load since last reset 显示新的设置后的最大负载
- Present offset B 显示偏移量B
Displays zero offset at last zero set 显示新设置后的零偏移量
? Parameter that can be set: 可设置的参数
- Reset A 重设A
This action sets “Maximum load A” to zero. “最大负载A”清零 - Reset B 重设B
This action sets “Maximum load B” to zero. “最大负载B”清零
3.12.9.1 Maximum Load/Present Offset 最大负载/显示偏移量
For each load cell connected to the web tension electronics PFEA 111/112, a maximum load memory will store the highest load that is applied to the load cells respectively. The maximum load memory can be reset if a load cell is replaced.
每个测压单元都连接到张力测量装置PFEA 111/112，一个最大负载存储器将存储每个测压单元的最大负载。当测压单元更换时存储器可被置位。
The dynamic load can be measured in the range of ±5 times the minimal load. The zero signal that can be ±1.5 times the nominal load is added to the dynamic signal.
可测量最小负荷5倍的动态负荷。零信号-也就是±1.5倍的正常负荷允许叠加在动态信号
This makes the total measuring range 6.5 times the nominal load. 这使总测量范围是额定负载的6.5倍。 3.12.9.2 Reset A/B 重设A/B
Reset A sets “Maximum Load A” to zero. 置位“最大负载A”清零 Reset B sets “Maximum Load B” to zero. 置位“最大负载B”清零 3.13 Profibus DP Communication with PFEA 112 Profibus DP 和PFEA 112的通讯 3.13.1 General Data about Profibus DP Profibus DP的主要数据
The purpose of the Profibus DP communication in PFEA 112 is to provide a high speed communication link between superior system and the PFEA 112.
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PFEA12提供一个与上级系统高速通讯的Profibus DP。
Profibus DP is a multidrop communication protocol intended to connect PLCs to sensors (DP means “Distributed Peripherals”).
Profibus DP是一个多支路通讯协议来连接PLC和传感器（DP的意思是“分布式的外围设备”）。
The physical interface is RS 485 (two wire cable). 物理界面是RS 485（两多股缆）。 Te maximum transfer rate is 12 Mbit/s. 最大传输速率是12 Mbit/s。
The protocol is based on a master-slave principle. The PFEA 112 is a slave. A Profibus master polls the slaves all the time, that means the polling is going on with a fixed time interval even when no new data is available from the PFEA 112.
这个草案（协议）建立在主-从协议的基础上。PFEA 112是从站。Profibus主站一直询问从站，也就是说轮询总有一个固定的时间间隔即使从PFEA 112没有新的有用数据。 Each slave has an address in the range 0 to 125. 每个从站都有一个范围从0到125的地址。
Profibus requires that the message format, communication parameters and error codes of slaves are made available in a so called type file, also known as GSD file (See Appendix A.6 Profibus DP-GSD File for PFEA 112). This file is then stored in the Profibus Master.
Profibus要求信息格式，通讯参数和从站的错误代码都在这样类型的文件里是可用的，也被称为GSD文件。这个文件也被存储在Profibus主站。
At start-up the Profibus Master verifies that the Slave with the given type file is indeed available on the bus.
启动Profibus主站验证从站提供的文件在总线上是确实可用的。 3.13.2 Master-slave Communication 主从通讯
The Master and the slave communicate via an output buffer and an input buffer. 主站和从站的通讯通过一个输出缓冲器和一个输入缓冲器。
The master reads the input buffer and writes to the output buffer once every scan cycle for Profibus. 主站在每个扫描周期从输入缓冲器读入并写到输出缓冲器。
The slave polls the output buffer and updates values in the input buffer. 从站询问输出缓冲器并更新输入缓冲器的值。
3.13.3 Commands through Profibus 通过Profibus控制 Profibus DP is available in PFEA 112 (not in PFEA111). Profibus DP在PFEA 112是可用的（在PFEA 111不行）。
“Zero set” is the only command that can be performed through Profibus in PFEA 112. “零点设置”是唯一可用被PFEA 112通过Profibus执行的。 3.13.4 Handing of Measurement Data through Profibus 通过Profibus得到便利的测量数据
Two web tension measurement values are transferred through Profibus: 两个网张力测量值通过Profibus传输：
? Value 1 has the same step response time as “voltage output”
值1和“电压输出”有同样的阶跃响应时间。
? Value 2 has the same step response time as “current output”
值2和“电流输出”有同样的阶跃响应时间。
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The scaling of “voltage output” and “current output” does not affect the measurement values transferred through Profibus.
“电压输出”和“电流输出”的缩放比例不影响测量值通过Profibus传输。 If zero set has been performed, the zero set values are transferred through Profibus. 如果零点设置已经确定，零点设置值可通过Profibus传输。 For scaling of Profibus measurement values, see Section 3.13.4.1. Profibus测量值的缩放比例，参照3.13.4.1。
Each measurement value has 16 bit, 2-complement representation (Integer 16). 每个测量值有16位，二进制表示。
3.13.4.1 Scaling of Profibus Measurement values Profibus测量值的缩放比例
Depending on the load cell nominal load the least significant bit of the measurement value is as specified in Table3-4.
依靠测压单元额定负载测量值的最低位在表3-4中详细说明。 3.13.4.2 Filtering of Profibus Measuring Values Profibus测量值的滤波
“Value 1” has the same filtering as the voltage output. “值1”有和电压输出相同的滤波。
“Value 2” has the same filtering as the current output. “值2”有和电流输出相同的滤波。
3.13.4.3 Input Buffer, Communication Block from PFEA 112 to PLC 输入缓冲器，从PFEA 112到PLC的通讯块
This section specifies measurement values and Boolean values in the input buffer communication block.
这节指定在输入缓冲器通讯块的测量值和逻辑值。 Data: 数据：
Value 1, Web tension 值1，网张力
Step response time (filtering) equal to the setting for Voltage output, 16-bit, 2-complement representation (Integer 16)
阶跃响应时间（过滤器）等于电压输出的设定，16位，二进制。 Value 2, Web tension 值2，网张力
Step response time (filtering) equal to the setting for Current output, 16-bit, 2-commplement representation(Integer 16)
阶跃响应时间（过滤器）等于电流输出的设定，16位，二进制。 Boolean in: 逻辑表示：
The error or warning is active when the corresponding bit is set to “1”. 当相应的位置1时，错误和警告是动态的。 Bit No.0: Flash memory error 瞬时存储器错误
Bit No.1: EEPROM error 电可擦除只读存储器错误 Bit No.2: Supply error进信号错误
Bit No.3: Load cell excitation error 测压单元激励错误 Bit No.4: Synchronization problem 同步问题
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