3BHB003151P104可控硅卡件
输入H将保持当前步骤的剩余时间，并通过操作5和禁用定序器的推进但将允许操作1、2、3和4将定序器移动到新步骤的开始位置。当最后一个定序器步骤完成时，SC将设置为高（1）。序列器不能移过最后一个
步骤，除非复位输入R变高（1），迫使其移动到位置1。只有在位置1时，定序器才能向前移动。网络通信将允许定序器移动到新的步骤和剩余时间
将当前步长的值更改为新值。当使用离散组且需要一个步骤为“仅定时”时，应使用一个离散输入以防止将定序器移动到下一步的输入掩码。这可以通过要求高（1）输入和则不连接该输入，因为未连接的输入将被视为0。如果使用离散组，并且希望某个步骤为“仅事件”，则该步骤的时间参数应设置为0.0。模拟输出将保持在上一步骤的AEP值，或者，如果在步骤1，模拟值将为0.0。当定序器前进到下一步时，模拟输出将转到已完成的AEP值步
通电-在热启动期间
，如果PU LAST设置为“是”，则所有输出、步数、轨迹变量和剩余步进时间将在断电前的最后值初始化。冷启动期间，所有输出均为：初始化为0，并且PRSEQ处于复位状态。QHD_功能块允许更改实际值在线使用快速设置功能。街区是由将在中显示的8字符名称标识快速设置模式。该块配置有以最小比例和最大比例输入的范围，以设置可用范围，小数点位置参数可以
设置允许的精度。保持值不能为超出这些限制的-10%至110%值并且将随着脉冲发生器的转动而连续变化。这个最大值必须始终设置为大于最小值。也可以通过断言强制块跟踪输入TV输入TC高（1）。固件1.30添加了参数QSCHANGE。它使要在中连续更新的块输出快速设置模式：当脉冲发生器旋钮旋转或仅旋转至使用数字显示中的值更新输出当按下存储按钮时。
配置DPP（小数点位置）时，将分辨率保持在所需的最小值很重要
用于操作更改。如果分辨率太高，操作员转动脉冲发生器的时间会更长。例如如果只需要0.1%的更改，则将0-100范围配置为0.0–100.0，而不是0.000–100.000。在热启动或热启动期间，QHD将在冷启动期间的最后位置以-10%范围值通电。比率功能块可用于每个循环基础。它们提供了一种在中设置比率的方法外部设定点应用，在保持比例的同时控制俘获流在野生流和圈养流之间期望值。输入A和E（外部比率）以及运算符集比率R值相乘并变为：功能块输出O1。
Input H will hold the remaining time of the current step and disable advancing of the sequencer by operations 5 and
6 but will allow operations 1, 2, 3, and 4 to move the sequencer to the starting position of a new step.
When the last sequencer step is completed, SC will be set high (1). The sequencer cannot be moved past the last
step unless the reset input R goes high (1) forcing it to position 1. The sequencer can be moved forward only when in position 1. Network communications will allow the sequencer to be moved to a new step and the remaining time
of the current step to be changed to a new value.
When discrete groups are used and a step is desired as ‘timed only’, one discrete input should be used to prevent the
input mask from moving the sequencer to the next step. This can be accomplished by requiring a high (1) input and
then not connecting that input, since unconnected inputs will be treated as 0.
When discrete groups are used and a step is desired as ‘event only’, the TIMe parameter for the step should be set to
0.0. The Analog Output will remain at the AEP value of the previous step or, if at step 1, the Analog value will be
0.0. When the sequencer advances to the next step, the Analog Output will go to the AEP value for the completed
step.
POWER UP - During a warm start, if PU LAST is set to YES, all outputs, step number, track variable, and
remaining step time will be initialized at the last values prior to power fail. During a cold start all outputs are
initialized to 0 and the PRSEQ is in a reset condition. QHD_ function blocks enable a real value to be changed
on-line using the QUICKSET feature. The block is
identified by an 8-character name that will be displayed in
the QUICKSET mode. The block is configured with a
range entered as MIN SCALE and MAX SCALE to set a
usable range, and a Decimal Point Position parameter can
set the allowed precision. The hold value can not be
changed beyond the -10% to 110% value of these limits
and will change continuously as the pulser is turned. The
MAX value must always be set greater than the MIN value.
The block can also be forced to track input TV by asserting
input TC high (1). Firmware 1.30 added parameter QSCHANGE. It enables
the block output to either update continuously in the
Quickset mode as the pulser knob is turned or to only
update the output with the value in the numeric display
when the STORE button is pressed.
When configuring the DPP (Decimal Point Position) it is important to keep the resolution to the minimum necessary
for operation changes. It will take the operator longer turning the pulser if the resolution is too high. For example,
if only 0.1% changes are needed configure a 0-100 range as 0.0 – 100.0 and not 0.000 – 100.000.
During Hot or Warm start, the QHD will power-up in the last position during a Cold start at the -10% range value. RATIO function blocks can be used on a one per
loop basis. They provide a means of setting a ratio in
an external setpoint application, for example,
controlling a captive flow while maintaining the ratio
between a wild flow and the captive flow at the
desired value. Inputs A and E (external ratio) and the
operator set ratio R value are multiplied and become
the function block output O1.
