HIMA F2103a模块卡件
2019模拟输出模块443 10.3.3.1降额图：ALG392为了获得最大性能和模块寿命，模块应在最大负载电阻下运行以卸载热量。模块热降额取决于电压水平以及电流和电压输出的使用。前两个图表（下图299）显示了30 Vdc 800 ohm负载500 ohm负载250 ohm负载时仅限电流模块的最大环境温度图299：电流输出的降额：ALG392 10.3.3.1.2混合电流和电压输出在图300所示的降额图表中，电压通道具有2kW负载，电流通道具有短路负载。要确定混合电流和电压输出的最大工作温度，请选择下表中与所用电压通道数量相对应的线。例如，模块使用两个电压通道和三个电流通道。使用的信道总数为五个，因此，从图300中可以看出，最高工作温度约为52.5°C：环境温度（°C）35 40 45 50 55 60 1 2 3 4 5 6 7 8 2信道V VUSER=30V 8信道V 6信道V 4信道V有源信道电流和电压混合图300：混合电流和电压输出的降额：ALG392 PACSystems*RX3i系统手册第12节GFK-2314T 2019年9月模拟输出模块444 10.3.4电流和电压电压范围和分辨率：ALG392在4至20 mA范围内，模块扫描PLC的输出数据，使4 mA对应于0的计数，20 mA对应于32000的计数。在0至20 mA范围内，用户数据被缩放，使得0 mA对应于0的计数，20 mA对应于32000。在0至20 mA模式下，高达32767的值提供约20.5 mA的最大输出。在电流模式下，模块还向PLC报告开环故障。对于默认单极模式（0至+10伏）下的电压操作，数据被缩放，使得0伏对应于0的计数，+10伏对应于32000的计数。在此模式下，高达32767的值产生约10.24伏的超范围输出。在-10至+10伏范围内，数据被缩放，因此-10伏对应于-3200的计数，+10伏对应于+32000的计数。在此范围内，-32767至+32767的输出值导致超出范围约-10.24伏至+10.24 0至20 mA：0.625μA 0至10 Vdc：0.3125 mV-10 Vdc至+10 Vdc：0.3125mV 10.3.5模块数据：ALG392模块ALG392最多使用八个输出参考字。每个通道提供16位模拟输出数据作为整数值。输出分辨率为15位，双极电压模式除外，其分辨率为16位。第16位
2019 Analog Output Modules 443 10.3.3.1 Derating Graphs: ALG392 For maximum performance and module life, the module should be operated at maximum load resistance to offload heat. Module thermal derating depends on the voltage level and the use of current and voltage outputs. The first two charts (in Figure 299 below) show the maximum ambient temperature for currentonly modules at 30 Vdc 800 ohm loads 500 ohm loads 250 ohm loads Number of Active Channels Ambient Temperature Figure 299: Derating for Current Outputs: ALG392 10.3.3.1.2 Mixed Current and Voltage Outputs In the derating graphs displayed in Figure 300, voltage channels have 2kW loads and current channels have shorted loads. To determine the maximum operating temperature for mixed current and voltage outputs, select the line in the chart below that corresponds to the number of voltage channels being used. For example, a module uses two voltage channels and three current channels. The total channels in use is five, so, from Figure 300, the maximum operating temperature is approximately 52.5°C: Ambient Temperature (°C) 35 40 45 50 55 60 1 2 3 4 5 6 7 8 2 Channels V VUSER = 30V 8 Channels V 6 Channels V 4 Channels V Active Channels Current and Voltage Mixed Figure 300: Derating for Mixed Current & Voltage Outputs: ALG392 PACSystems* RX3i System Manual Section 12 GFK-2314T Sept. 2019 Analog Output Modules 444 10.3.4 Current and Voltage Ranges and Resolution: ALG392 In the 4 to 20 mA range the module scans output data from the PLC so that 4 mA corresponds to a count of 0, and 20 mA corresponds to a count of 32000. In the 0 to 20 mA range, user data is scaled so that 0 mA corresponds to a count of 0 and 20 mA corresponds to 32000. In 0 to 20 mA mode, a value up to 32767 provides a maximum output of approximately 20.5 mA. In current mode, the module also reports an open loop fault to the PLC. For voltage operation in the default unipolar mode (0 to +10 volts), data is scaled so that 0 volts corresponds to a count of 0 and +10 volts corresponds to a count of 32000. In this mode, a value up to 32767 creates an over-range output of approximately 10.24 volts. In the -10 to +10 volt range, data is scaled so that -10 volts corresponds to a count of -32000 and +10 volts corresponds to a count of +32000. In this range, output values from -32767 to +32767 result in an overrange of approximately -10.24 volts to +10.24 0 to 20 mA: 0.625 μA 0 to 10 Vdc: 0.3125 mV -10 Vdc to +10 Vdc: 0.3125 mV 10.3.5 Module Data: ALG392 Module ALG392 uses up to eight output reference words. Each channel provides 16 bits of analog output data as an integer value. Output resolution is 15 bits except for the bipolar voltage mode, which has 16-bit resolution. The 16th bit
