Micromod MOD: 30ML Operation and Template Setup - Manual (Page 7)

MOD 30ML Operation
INTRODUCTION
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INTRODUCTION
1.1 FEATURES
The following features are included with the basic instrument:
• Built-in single loop PID Control or Single Station Cascade Strategies,
• Two Isolated universal analog inputs standard
• Two analog outputs standard
The following features are options to the basic instrument:
• Up to 11 additional single point, individually isolated local process I/O
• Redundant, removable NOVRAM backs up configuration and current process parameters
The following features require the support of the instrument configuration software:
• Serial communications: Instrument Communications Network, RS-232 and RS-485
Modbus standard
• Up to 100 additional discrete remote I/O points through a Remote I/O Interface module
• Logic, advanced and sequential control functions
• Display scripting functions
• Complete configuration control using graphics based blocks and connections
1.2 DESCRIPTION
This microprocessor based 3x6 multiloop controller is designed to meet your process control
needs whether you use it for loop indication or to implement advanced process strategies.
The controller can display and control continuous process variables such as temperature,
pressure, liquid level, or flow and has the ability to perform digital logic functions.
1.2.1 Functionality
The instrument provides continuous control functions such as PID, feedforward, set-point and
output tracking, external feedback, set-point and output limiting, in addition to logic and I/O
functions. As many as six PID or 4 cascade loops can be run in a single controller with a total
loop processing time of 250 milliseconds. Using on-board I/O, PID control loops can be
executed as fast as 100 milliseconds.
Using the configuration software for setup, the instrument can run Sequence Blocks based on
a drum programmer design with up to 100 inputs, 80 steps and 30 outputs per block; blocks
can be cascaded for larger sequences. Sequence Blocks allow forward and backward
stepping, unlimited branching and outputs configurable for any data type (discrete, floating
point, integer, time, date, ASCII or HEX).
The instrument has 64K of non-volatile RAM which contains the user database and all current
process and operating parameters. The optional Portable Memory Module provides 64K of