IS200ICIAH1ABB DCS工控模块备件
被视为独立字节：计数器ID字节和命令代码字节。命令字可以十六进制或十进制格式输入。在表中，对于类型A，n=计数器#1–4。对于类型B，n=计数器#2（只有计数器2是B型）。命令字（十六进制）命令描述0n01加载累加器将计数器限制内的任何值直接加载到累加器中。如果同时接收到计数，则计数将丢失。示例：要将计数器1设置为1234H，请加载COMREQ命令寄存器：命令字：0101 LS数据字：1234 0n02加载上限将上限和下限设置为计数器范围内的任何值。降档时首先移动下限，升档时先移动上限。以错误顺序加载限制可能会导致错误。如果所有参数都在新范围内，则命令成功。示例：要将计数器1的上限更改为10000（2710H），请加载寄存器：命令字：0102 LS数据字：2710 0n03加载下限0n04加载累加器增量将计数器累加器偏移最多+127或-128个计数。此命令仅使用LSB数据。这可以在任何时候完成，即使计数器以最大速率计数。但是，如果在CPU更新累加器值的同时接收到计数，则计数将丢失。如果偏移量导致计数器超出其极限，则拒绝此参数。示例：要将计数器1偏移–7个计数，请加载：命令字：0104 LS数据字：00F9 0n05设置计数器方向（仅A型）更改A型计数器的计数方向。此命令仅使用第一个数据字的LSB（00=向上，01=向下）。示例：要将计数器4的方向设置为向下，请加载：命令字：0405 LS数据字：0001 0n06加载时基更改用于计数/时基字数据的时间间隔。在10mS间隔内，范围为10至1000mS。示例：要将计数器1的时基更改为600 ms（258H），请加载：命令字：0106 LS数据字：0258 GFK-1504N第13章混合离散/高速计数器模块13-25 13 IC200MDD841混合模块，24 V DC正逻辑输入20/输出12点/（4）高速计数器，PWM，或脉冲串可配置命令字（十六进制）命令描述0208加载起始值更改B2类计数器的起始值。0n0B加载开启预设在计数器范围内设置输出开启。每个计数器都有一个输出。示例：要将计数器1输出设置为在5000（1388H）计数时打开，请加载：命令代码：010B LS数据字：1388 0n15加载关闭预设在计数器范围内设置输出关闭。每个计数器都有一个输出。示例：要将计数器1输出设置为在12000（2EE0H）计数时关闭，加载：命令代码：0115 LS数据字：2EE0 0n1F加载预加载激活预加载输入时更改加载到计数器累加器中的计数值。示例：为了使计数器1在其预加载信号处以2500（09C4H）计数开始，
are treated as independent bytes: a counter ID byte and a command code byte. Command words can be entered in hexadecimal or decimal format. In the table, for Type A, n = Counter #1–4. For Type B, n = Counter #2 (only counter 2 is B-type). Command Word (hex) Command Description 0n01 Load Accumulator Loads any value within a counter’s limits directly into the Accumulator. If a count is received at the same time, the count is lost. Example: To set Counter 1 to 1234H, load COMREQ command registers with: Command word: 0101 LS data word: 1234 0n02 Load High Limit Sets the High and Low limit to any value in the counter range. Move the Low Limit first when shifting down or the High Limit first when shifting up. Loading limits in the wrong order can cause an error. The command is successful if all parameters are within the new range. Example: To change the upper limit of counter 1 to 10000 (2710H), load registers with: Command word: 0102 LS data word: 2710 0n03 Load Low Limit 0n04 Load Accumulator Increment Offsets a counter Accumulator by up to +127 or –128 counts. Only the LSB data is used with this command. This can be done at any time, even while the counter is counting at maximum rate. However, if a count is received at the same time the CPU updates the Accumulator value, the count is lost. If the offset causes the counter to exceed its limits, this parameter is rejected. Example: To offset counter 1 by –7 counts, load: Command word: 0104 LS data word: 00F9 0n05 Set Counter Direction (Type A only) Changes the count direction of a type A counter. Only the LSB of the first data word is used for this command (00 = up, 01 = down). Example: To set the direction of counter 4 to down, load: Command word: 0405 LS data word: 0001 0n06 Load Timebase Changes the time interval used for the counts/timebase word data. The range is 10 to 1000mS in 10mS intervals. Example: To change the timebase for counter 1 to 600 ms (258H), load: Command word: 0106 LS data word: 0258 GFK-1504N Chapter 13 Mixed Discrete/High-Speed Counter Module 13-25 13 IC200MDD841 Mixed Module, 24 V DC Positive Logic Input 20 / Output 12 Point / (4) High-speed Counter, PWM, or Pulse Train Configurable Command Word (hex) Command Description 0208 Load Home Value Changes the home value for the Type B2 counter. 0n0B Load ON Preset Sets up the output turn on within the counter range. There is one output associated with each counter. Example: To set counter 1 output to turn on at 5000 (1388H) counts, load: Command Code: 010B LS data word: 1388 0n15 Load OFF Preset Sets up the output turn off within the counter range. There is one output associated with each counter. Example: To set counter 1 output to turn off at 12000 (2EE0H) counts, load: Command Code: 0115 LS data word: 2EE0 0n1F Load Preload Changes the count value loaded into the counter Accumulator when the Preload input is activated. Example: To make counter 1 start at 2500 (09C4H) counts at its preload signal,
