Future Design MCTB 4.3, Руководство пользователя

Страница: 94 / 240

MCTB
94
5 Basic Operation
This section is designed to help guide the user through the MCTB touch screen interface and menu structure
in order to navigate through the various operation, monitor and setup screens and gain an understanding of
how to use them. Subsequent sections of this manual are tailored to the special features and functions of
MCTB. Consult those sections of the manual for further information and specifics on how to set up and operate
them.
5.1 OEM Configuration Options
The availability of certain menu items, screens and the functionality of MCTB are determined by the
configuration of the loop control(s). This manual covers all available options, some of which may not be
available on your system.
If there are questions or concerns about the operation and available options on your MCTB controller, contact your
OEM for further information. Only your OEM can address equipment related issues.
5.1.1 Loop Control Monitor Only Mode
The loop control “Monitor Only” mode selection in the Configurator provides an OEM with a low-cost video
recorder option to use in place of a standard circle/strip/paperless recorder. When the loop monitor only mode
is enabled in the Configurator for a loop, the MCTB automatically configures itself to remove all set point fields,
automatic ramp/soak program control options, loop tuning and set point limit access so that only the loop
process value (PV) is available for the monitor only loop.
- Loop View on single loop system - - Loop View on dual loop system -
Unlike your basic chart recorder; however, the loop controls are still functional. They can be used to control a
process if there is the need for fixed, single set point control. A loop can be programmed with a fixed set point
by the OEM, and it will then control the process in the background without the need for any user access.
The OEM can also provide events for the user to turn equipment on or off, and alarms can be configured to
alert the user to process changes.
If one control loop is required while another point is for recording only, enabling the monitor only mode on loop
2 in the Configurator for example, will remove the set point fields, program operation, tuning and set point limit
access for loop 2 only. Loop 1 will maintain all control functions including the automatic ramp/soak program
operation, while loop 2 will be shown as a monitor only point for recording purposes.
If additional program events are required, even though loop 2 is a monitor only loop, any of its outputs can be
programmed as events. The events will then be accessible under ramp/soak program entry and can be
controlled by the program.