Channel configuration words, Compactlogix analog output module 21 – Rockwell Automation 1769-OF8V CompactLogix Analog Output Module User Manual
Page 21
CompactLogix Analog Output Module 21
Rockwell Automation Publication 1769-IN089A-EN-P - March 2011
•
E = Channel Enable: (0 = Disabled, 1 = output 0 and hold Enabled,
process changes)
•
Reserved = Set to zero
•
SIU = System interrupt low clamp, under-range alarms: (0 = Disabled, 1
= Enabled)
•
SIO = System interrupt high clamp, over-range alarms: (0 = Disabled, 1
= Enabled)
•
LA = Latch low/high clamp, under/over-range alarms: (0 = Disabled, 1
= Enabled)
•
ER = Enable ramping: (0 = Disabled, 1 = Enabled. Ramp rate limited by
fault states.)
•
FM = Fault mode: (0 = Hold Last State, 1 = User Defined Value)
•
PM = Program mode: (0 = Hold Last State, 1 = User Defined Value)
•
HI = Hold for initialization: (0 = Disabled, 1 = Enabled)
•
PFE = Program/idle to fault enable: (0 = Disabled, 1 = Enabled)
Channel Configuration Words
The first two words of each eight-word group in the configuration file let you
change the parameters of each channel independently. For example, words 8 and
9 correspond to channel 1 while words 56 and 57 correspond to channel 7.
Word/Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word 0
E
Reserved
SIU
SIO
LA
ER
FM
PM
HI
PFE
Word 1
Reserved
Output Data
Format Select
Reserved
Output
Type/Range
Define
Indicate this
These bit settings
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Program (idle)
to Fault Enable
Program (Idle)
Mode Data
Applied
(1)
0
0
0
0
0
0
0
0
0
Fault Mode Data
Applied
(1)
0
0
0
0
0
0
0
0
1
Hold for
Initialization
Disabled
0
0
0
0
0
0
0
0
0
Enabled
0
0
0
0
0
0
0
0
1