ICS TRIPLEX T8448控制器模块
ODA块是one上使用的五个操作员显示器之一按回路配置本地操作员显示功能，以及网络参数。请参阅下一页的i|ware PC面板。该块将显示最多四个过程变量P1至P4模拟条形图和数字形式。两个报警与每个过程变量。它们可以配置为高或低报警。每个报警功能具有高（1）的相关块输出当警报激活时。当发生循环事件时，输出LE为高（1）是活动的。当站错误激活时，输出SE为高。循环#参数用于索引对Modbus和LIL的读取和写入网络参数。网络参数见第6节和第7节。视图OD参数设置为“是”时，启用操作员要在本地查看和访问的显示。如果它在希望仅从网络查看显示或操作参数工作站，参数应设置为“否”。
所有四个过程输入的范围指针（即R1到R4）必须为：被配置为定义每个变量输入的范围（即P1到P4）。
如果未配置这些参数，将缩放条形图使用0.00到100.00的工程范围
此信息也定义提供给远程的循环信息的比例网络上的工作站（即Modbus或LIL）。每个过程变量可通过以下方式显示在本地面板上：D按钮。当第一次使用循环按钮进入循环时，将显示回路标签（如AnDisp1）。然而，如果存在循环中具有未确认报警的点，该点将在点标记和报警之间交替显示条件（例如PI693/3B LO）。按D按钮滚动浏览在中显示点标签（例如TI712）的模拟点数字显示中的字母数字和点的值（例如。348.47). 按“单位”按钮显示点的单位。按循环标记返回显示循环标记。
报警类型HI将过程输入与极限设置进行比较，并使报警状态高（1），当进程等于或高于限制设置。当进程较少时，报警状态将清除（0）大于极限设置减去死区。LO将过程输入与极限设置进行比较，并使当进程等于或小于限制设置。当流程处于以下状态时，报警状态将清除（0）：大于极限设置加上死区。
或将过程输入与引用的范围限制进行比较范围指针参数。它将触发报警状态高（1）
当过程等于或大于上限时，或等于达到或低于下限。当进程小于上限减去死区或更大高于下限加上死区。
ODA blocks are one of five operator displays that are used on a one
per loop basis to configure the local operator display functions and
network parameters. See the i|ware PC faceplate on the next page.
The block will display up to four process variables P1 to P4 in both
analog bargraph and digital form. Two alarms are associated with
each process variable. They can be configured as HI or LO alarms.
Each alarm function has associated block outputs that are high (1)
when the alarm is active. Output LE is high (1) when a loop event
is active. Output SE is high when a station error is active. LOOP #
parameters are used to index reads and writes to Modbus and LIL
network parameters. See Sections 6 and 7 for network parameters.
The VIEW OD parameter, when set to YES, enables the operator
display to be viewed and accessed locally. In cases where it is
desired to view display or operation parameters only from a network
workstation, the parameter should be set to NO.
Range pointers (i.e. R1 to R4) for all four process inputs must be
configured to define the range of each variable input (i.e. P1 to P4).
If these parameters are not configured, the bargraphs will be scaled
using the engineering range of 0.00 to 100.00. This information also
defines the scaling of the loop information provided to a remote
workstation over the network (i.e. Modbus or LIL).
Each process variable can be displayed on the local faceplate using
the D button. When first stepping into a loop using the Loop button,
the loop tag will be displayed (e.g. AnDisp1). However, if there is a
point within the loop that has an unacknowledged alarm, that point
will be displayed alternating between the point tag and the alarm
condition (e.g. PI693/3B LO). Press the D button to scroll through
the analog points displaying the point tag (e.g. TI712) in the
alphanumeric and the value of the point in the digital display (e.g.
348.47). Press the UNITS button to display the units of the point.
Press the Loop tag to return to displaying the loop tag.
Alarm Types
HI compares the process input with the limit setting and trips the
alarm status high (1) when the process is equal to or higher than the
limit setting. The alarm status will clear (0) when the process is less
than the limit setting minus the deadband.
LO compares the process input with the limit setting and trips the
alarm status high (1) when the process is equal to or less than the
limit setting. The alarm status will clear (0) when the process is
greater than the limit setting plus the deadband.
OR compares the process input with the range limits referenced by
the range pointer parameter. It will trip the alarm status high (1)
when the process is equal to or greater than the high limit, or equal
to or less than the low limit. The alarm status will clear (0) when the
process is less than the high limit minus the deadband or greater
than the low limit plus the deadband.
