FBM201d输出模块
Ct选项通常仅在写入PID控制回路中的I/O输出时使用。输入T可用于:触发写入。如果选择了“一旦”选项,则输入S不会发生变化,因此以基于触发死区触发写入,并且可能存在接收设备已丢失价值
输出QS表示写入操作的质量,当写入未完成时,输出QS将变高(1)
成功地这通常与由于以下原因导致目标设备无法接收数据相关:
通信故障或设备配置错误。BATOT功能块可用于每个循环一个基于并集成模拟输入。每个都提供
表示总积分值的输出信号已选择时基。例如,如果时基为分钟,输入A为5.0,持续60分钟,输出TL等于300.0。总数可显示在操作员面板为<循环标签>。如果配置参数DISP TOT设置为是。六字符在配置中输入最大名称(如GAL)在TOT单位下,识别累加器单位。
输入S断言为高(1)将停止积分器动作。
输入R将使积分器功能复位到初始值(初始值)。这些输入不影响
脉冲输出。积分器输出与在配置中输入的初始值,以提供
计算总数。当BATOT被复位。
DIR ACT设置为“是”将导致积分器增加其输出为“否”,将导致积分器输出:减少当初始值设置为预定批次时数量,递减操作将提供倒计时柜台这有时是首选的,因为计数然后,输出表示批次中剩余的数量。
ZDO用于设置一个小的正值,以确保流量关闭时积分器将停止,这如果流量计零点超出校准范围,则可能不会发生这种情况。功能块有两个跳闸预设:预设1和预设2。可将其设置为高输出(1)当计数总和等于或超过预设值时,从A1或A2开始。输入的预设值如果参数“快速设置”设置为“是”,也可以使用“快速”按钮设置配置。QS
DPP参数允许在快速设置期间固定小数点,以加快对这些设置的更改。参数
默认情况下,不带小数点位置的值适用于将累加器计数作为整个单位处理的应用程序。
可通过向T1和/或T2提供输入来使用外部预设,使用时,内部预设将为
忽略。如果使用外部预设,则可以在QUICKSET中查看该值,但不能更改。
预设的动作也由积分器的动作设置决定。当DIR ACT设置为“是”时
预设值将是直接作用的,当积分总和等于或时,将导致输出A1或A2变高
高于预设值。如果设置为“否”,当总和等于或低于时,总和将导致A1或A2变高
预设。实际预设值在输出T1和T2上可用。
BATOT function blocks can be used on a one per loop
basis and integrate an analog input. Each provides an
output signal representing a total integrated value over the
time base selected. For example, if the time base is
minutes and input A is 5.0 for 60 minutes, output TL
would equal 300.0. The total can be displayed on the
operator faceplate as.T if the configuration
parameter DISP TOT is set to YES. A 6-character
maximum name (e.g. GAL) is entered in configuration
under TOT UNIT to identify the totalizer units.
Input S asserted high (1) will stop the integrator action.
Input R will cause the integrator function to reset to the
initial value (INIT VAL). These inputs do not affect the
PuLse output. The integrator output is summed with the
INITial VALue entered in configuration to provide the
count total. The INIT VAL is used as the total when the
BATOT is reset.
DIR ACT set to YES will cause the integrator to increase
its output while NO will cause the integrator output to
decrease. When INIT VAL is set to a predetermined batch
amount, decreasing action will provide a count down
counter. This is sometimes preferred since the count
output then represents the amount remaining in a batch.
ZDO is used for setting a small positive value, insuring that the integrator will stop when the flow is shut off, which
might not otherwise happen if a flowmeter zero is out of calibration.
The function block has two trip presets: PRESET 1 and PRESET 2. These can be set to cause a high output (1)
from A1 or A2 when the count total equals or exceeds the preset values. The preset values, entered in
configuration, can also be set using the QUICK button if the parameter QUICKSET has been set to YES. The QS
DPP parameter allows fixing the decimal point during quickset to speed up changes to these settings. A parameter
value with no decimal point position, the default, is for applications dealing with the totalizer count as whole units.
An external preset can be used by providing an input to T1 and/or T2 and when used, the internal preset will be
ignored. If an external preset is used, the value can be viewed but not changed in QUICKSET.
The action of the presets is also determined by the action setting of the integrator. When DIR ACT is set to YES
the presets will be direct acting and will cause outputs A1 or A2 to go high when the integrated total is equal to or
higher than the preset. If set to NO the total will cause A1 or A2 to go high when the total is equal to or lower than
the preset. The actual preset value is available on outputs T1 and T2.