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1C31189G03热电偶输出模块
配置交换机包B875–111可以配置为接受8个差分或16个单端输入。当为8个差分输入选择时，该卡称为B875–111。当为16个单端输入选择，该卡称为B877–111。
此选择由后部配置开关组上的开关7进行模块的。SW7在左侧位置等于16个输入，在右侧位置等于等于8个输入。除了选择输入数量外，您还可以选择电压范围、输出样本的格式、极性、偏移量和数量。请参阅安装说明以及模块左侧的DIP开关图，以了解详细信息。
对于快速启动设置，使用以下设置连接0至+10V输入
信号对于以下输入参数：0-10 V输入0到满刻度输出格式一个样本
八个差动输入按如下方式设置开关设置：
SW1、SW3、SW5、SW7=右
SW2、SW4、SW6、SW8=左
输入类型选择（电压或当前）如果配置为B875（8个差动输入），则选择电流输入（4-20mA通过在正极电压输入和适当通道的电流输入端子。请参阅下图。现场连接器跳线图如果配置为B877（16个单端电流输入），则通过以下方式选择输入类型模块左侧的开关。16个开关各有一个输入。该开关在正输入和模拟回路。不使用外部跳线，必须拆除。
左侧位置等于电压输入，右侧位置等于电流输入。
开关组4（左侧）上的第五个开关选择两个B875的电压范围和B877操作。此开关必须与配置的开关8相对应开关组（模块后部）。SW5的左侧位置等于10伏右侧位置等于5伏。SW8必须与SW5处于相同位置。
对于0-10V输入信号示例，将所有输入开关设置为左侧（向下或朝向数字）。
I/O映射如果设置为8个差分输入，则模块类型为B875，需要8个连续3xxxx二进制寄存器。如果设置为16个单端输入，则模块类型为B877，需要16个连续的3xxxx二进制寄存器。
导线输入B875–111和B877–111需要高密度连接器，零件号AS–8535–000。请参阅模块左侧的引出线。请参阅以下内容插图0-10 V输入示例，图。注：通电后，模块的活动指示灯快速闪烁，显示已建立与可编程控制器的通信，但返回的输入数据无效。（4000十六进制发送至控制器）。模块初始化完成时，以及正在传输有效的输入数据，指示灯持续亮起或闪烁当任何输入超出范围时，速度缓慢。
Configuration Switch Pack
The B875–111 can be configured to accept 8 differential or 16 single ended inputs. When selected for 8 differential inputs, the card is called a B875–111. When selected for 16 single ended inputs, the card is called a B877–111. This selection is made by switch 7 on the configuration switch pack found at the rear of the module. SW7 in the left position is equal to 16 inputs, in the right position it is equal to 8 inputs. In addition to selecting the number of inputs, you also select voltage range, output format, polarity, offset and number of samples. Refer to the Installation Instructions and the DIP-switch chart on the left side of the module for details. For a quick start setup, use the following settings to interface a 0 to +10V input signal. For the following input parameters: 0—10 V input 0 to full scale output format One sample Eight differential inputs Set the switch settings as follows: SW1, SW3, SW5, SW7=right SW2, SW4, SW6, SW8=left Input Type Selection (Voltage or Current) If configured as a B875 (8 differential inputs), current inputs (4—20mA) are selected by placing a jumper at the field connector between the positive voltage input and the current input terminal for the appropriate channel. Refer to the following illustration. Field Connector Jumper Diagram
If configured as a B877
(16 single ended current inputs), input type is selected by the switches on the left side of the module. There is one switch for each of the 16 inputs. This switch places a 250 ohm precision resistor between the plus input and analog return. External jumpers are not used and must be removed. The left position is equal to voltage input, and the right position is equal to current input. The fifth switch on switch bank 4 (left side) selects the voltage range for both B875 and B877 operations. This switch must correspond to switch 8 of the configuration switch bank (at rear of module). The left position of SW5 is equal to 10 volts, and the right position is equal to 5 volts. SW8 must be in the same position as SW5. For the 0—10V input signal example, set all the input switches to the left (down or towards the numbers). I/O Mapping If setup for 8 differential inputs, the module type will be a B875 and requires 8 consecutive 3xxxx binary registers. If setup for 16 single ended inputs, the module type will be a B877 and require 16 consecutive 3xxxx binary registers. Wire Inputs The B875–111 and B877–111 require a high-density connector, part number AS– 8535–000. Refer to the left side of the module for pinouts. Refer to the following illustration. 0—10 V Input Example, Diagram.
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