Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Instruction Manual - Manual (Page 177)

5.14 SYSTEM MODULE
This module controls and monitors the loading, scheduling and execution of the operations algorithms; as well as the display appearance,
network communications, counter/timer settings and hardware status indicators.
Table 5-14. System Module
Title Definition Atom Data-
point
De-
fault
Unit Tag
Name This parameter indicates the name that is displayed as the Controller Name and should not be
confused with the loop tag names.
TAG A008
MC
5000
Function
Index
The operational algorithm of the unit is selected by the value of this parameter.
0 = No Control Algorithm Execution.
1 = Execute Flexible Control Strategy (or Custom EPROM).
2 - 89 = Execute User F-TRAN Program (or Custom EPROM).
90 - 96 = Reserved.
97 = Display Test.
98 = Default Database.
99 = Execute F-CIM Module.
100 = Special Approval (Custom EPROM).
101 - 255 = Execute User F-TRAN Program.
FIX B000 0
Function
Index
Match
The AOs will be forced to 0 mA, all of the DOs will be forced open, and datapoint B000 will be
set to 0 whenever datapoint B333 contains a value other than 0 that does not match the value of
datapoint B000. For example, B000 = 1 to indicate FIX 1 is functioning and B333 = 1, any
undesirable event that causes the value of B000 to change, and therefore alter the controller FIX
operating mode, will cause a forced output condition, as B333
≠
B000. B000 will be set to 0.
FXM B333 0
Scan
Index
This parameter determines the frequency of execution of the operation selected. The repetition
period equals
B003 X 50 mS. This value should be set to the smallest value possible without
causing the Scan File Overrun Counter (OVR - B004) to increment. For example, setting this
value to
2, means 100 mS (2 X 50 mS) is allocated per scan to complete the necessary input,
output, and algorithm functions required by the selected FIX, FCS wire list (Link List), F-CIM
module, or F-TRAN program.
SCAN B003 1
Scan File
Overrun
Counter
This parameter is incremented whenever the execution of the control algorithm exceeds the
repetition period specified in Scan Index (SCAN - B003). Each time an increment occurs, one
pass of the control algorithm is skipped. In order to stop overruns, increase the value of the
Scan Index (SCAN - B003).
OVR B004 0
Background
Program This parameter is used to implement the EASY TUNE algorithm. When set to 1 EASY TUNE
operation is initiated.
BACK B008 0
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