HIMA F1107脉冲输入卡件
t模块将CPU的浮点值转换为其配置范围的整个范围内的电压或电流输出。例如，如果信道的范围为4至20mA，则模块接受4.000至20.000的信道输出值。通过修改四个信道缩放参数（低/高缩放值参数）中的一个或多个，可以针对特定应用更改缩放工程单位范围。缩放始终是线性的，可以进行逆缩放。所有报警值都适用于缩放的工程单位值，而不是A/D单位值。缩放参数仅设置两组对应值之间的线性关系。它们不一定是输出的极限。示例在本示例中，应用程序应将32000计数解释为+10 Vdc，-32000计数解释为-10 Vdc。以下信道配置将将±10 Vdc输出信道缩放至±32000计数。信道值格式=16位整数高量程值（Eng单位）=32000.0低量程值（英制单位）=-3200.00高量程值，（A/D单位）=10.000低量程值第12节GFK-2314T 2019年9月模拟输出模块460信道参数（续）参数默认说明高报警（英制单位）默认值取决于配置的范围。所有报警参数均以工程单位指定。当达到或低于（高于）配置值时，将触发低（高）报警。低报警（工程单位）输出启用斜坡率（工程单位（Eng Units））0.0正常运行期间输出将发生变化的工程单位速率。默认斜坡速率（工程单位）0.0如果发生故障或未启用输出，输出将改变的工程单位速率。输出钳位启用禁用启用/禁用。请参阅以下说明。上限（英制单位）默认值取决于配置的量程。上限必须大于下限。此参数可用于将输出限制在比其配置的范围类型更窄的范围内。例如，为-10 Vdc至+10 Vdc配置的信道可能被限制为-8V至+7.5V。下限限值（英制单位）默认值（英制单元）0.0。如果禁用保持最后状态，则当CPU未处于输出启用模式或在特定故障条件下时，命令输出进入默认值。用户偏移（Eng Units）0.0可用于更改通道基础的可配置值。该值在报警检查之前添加到通道的缩放值。10.3.13.3下限、上限和警报：ALG704和ALG708警报可用于指示模块何时被命令满足或超过每个通道的配置上限或下限。这些设置在六个可配置报警触发点：▪ 高报警
he module converts a floating-point value from the CPU into a voltage or current output over the entire span of its configured Range. For example, if the Range of a channel is 4 to 20mA, the module accepts channel output values from 4.000 to 20.000. By modifying one or more of the four channel scaling parameters (Low/High Scale Value parameters) from their defaults, the scaled Engineering Unit range can be changed for a specific application. Scaling is always linear and inverse scaling is possible. All alarm values apply to the scaled Engineering Units value, not to the A/D units value. The scaling parameters only set up the linear relationship between two sets of corresponding values. They do not have to be the limits of the output. Example In this example, the application should interpret 32000 counts as +10 Vdc and –32000 counts as -10 Vdc. The following channel configuration will scale a ±10 Vdc output channel to ±32000 counts. Channel Value Format = 16-bit Integer High Scale Value (Eng Units) = 32000.0 Low Scale Value (Eng Units) = -32000.0 High Scale Value (A/D Units) = 10.000 Low Scale Value (A/D Units) = -10.000 Voltage -10,000 +10,000 -32,000 Counts 32,000 PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 459 Figure 306: Channel Scaling Example PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 460 Channel Parameters (Continued) Parameter Default Description High Alarm (Eng Units) The defaults depend on the configured Range. All of the alarm parameters are specified in Engineering Units. When the configured value is reached or below (above), a Low (High) Alarm is triggered. Low Alarm (Eng Units) Outputs Enabled Ramp Rate (Eng Units) 0.0 The rate in Engineering Units at which the output will change during normal operation. Default Ramp Rate (Eng Units) 0.0 The rate in Engineering Units at which the output will change if a fault condition occurs or if outputs are not enabled. Output Clamping Enabled Disabled Enabled / Disabled. Refer to description below. Upper Clamp Limit (Eng Units) The defaults depend on the configured Range. The Upper Clamp Limit must be greater than the Lower Clamp Limit. This parameter can be used to restrict the output to a range that is narrower than its configured Range Type. For example, a channel configured for –10 Vdc to +10 Vdc could be restricted to -8V to +7.5V. Lower Clamp Limit (Eng Units) Default Value (Eng Units) 0.0 If Hold Last State is disabled, the output is commanded to go to the Default Vale when the CPU is not in Outputs Enabled mode or under certain fault conditions. User Offset (Eng Units) 0.0 A configurable value that can be used to change the base of the channel. This value is added to the scaled value of the channel before alarm-checking. 10.3.13.3 Lower, Upper Clamp and Alarms: ALG704 and ALG708 Alarms can be used to indicate when the module has been commanded to meet or exceed the configured high or low limits for each channel. These are set at six configurable alarm trigger points: ▪ High Alarm
