HIMA F2103a模塊卡件
2019模擬輸出模塊443 10.3.3.1降額圖：ALG392為了獲得最大性能和模塊壽命，模塊應(yīng)在最大負(fù)載電阻下運(yùn)行以卸載熱量。模塊熱降額取決于電壓水平以及電流和電壓輸出的使用。前兩個(gè)圖表（下圖299）顯示了30 Vdc 800 ohm負(fù)載500 ohm負(fù)載250 ohm負(fù)載時(shí)僅限電流模塊的最大環(huán)境溫度圖299：電流輸出的降額：ALG392 10.3.3.1.2混合電流和電壓輸出在圖300所示的降額圖表中，電壓通道具有2kW負(fù)載，電流通道具有短路負(fù)載。要確定混合電流和電壓輸出的最大工作溫度，請(qǐng)選擇下表中與所用電壓通道數(shù)量相對(duì)應(yīng)的線。例如，模塊使用兩個(gè)電壓通道和三個(gè)電流通道。使用的信道總數(shù)為五個(gè)，因此，從圖300中可以看出，最高工作溫度約為52.5°C：環(huán)境溫度（°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有源信道電流和電壓混合圖300：混合電流和電壓輸出的降額：ALG392 PACSystems*RX3i系統(tǒng)手冊(cè)第12節(jié)GFK-2314T 2019年9月模擬輸出模塊444 10.3.4電流和電壓電壓范圍和分辨率：ALG392在4至20 mA范圍內(nèi)，模塊掃描PLC的輸出數(shù)據(jù)，使4 mA對(duì)應(yīng)于0的計(jì)數(shù)，20 mA對(duì)應(yīng)于32000的計(jì)數(shù)。在0至20 mA范圍內(nèi)，用戶數(shù)據(jù)被縮放，使得0 mA對(duì)應(yīng)于0的計(jì)數(shù)，20 mA對(duì)應(yīng)于32000。在0至20 mA模式下，高達(dá)32767的值提供約20.5 mA的最大輸出。在電流模式下，模塊還向PLC報(bào)告開環(huán)故障。對(duì)于默認(rèn)單極模式（0至+10伏）下的電壓操作，數(shù)據(jù)被縮放，使得0伏對(duì)應(yīng)于0的計(jì)數(shù)，+10伏對(duì)應(yīng)于32000的計(jì)數(shù)。在此模式下，高達(dá)32767的值產(chǎn)生約10.24伏的超范圍輸出。在-10至+10伏范圍內(nèi)，數(shù)據(jù)被縮放，因此-10伏對(duì)應(yīng)于-3200的計(jì)數(shù)，+10伏對(duì)應(yīng)于+32000的計(jì)數(shù)。在此范圍內(nèi)，-32767至+32767的輸出值導(dǎo)致超出范圍約-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模塊數(shù)據(jù)：ALG392模塊ALG392最多使用八個(gè)輸出參考字。每個(gè)通道提供16位模擬輸出數(shù)據(jù)作為整數(shù)值。輸出分辨率為15位，雙極電壓模式除外，其分辨率為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
