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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 8
Use I/O Modules with CompactLogix 5370 L2 Controllers
34
S
Ramp Rate Channel 0
35
Nu
36
EC
Nu
EHI
ELI
LC
ER
FM
PM
Nu
PFE
37
Nu
Outpt Fm ChI1
Nu
Outpt Tp/RngeSel ChI1
38
S
Fault Value Channel 1
39
S
Program (Idle) Value Channel 1
40
S
Clamp High Data Value Channel 1
41
S
Clamp Low Data Value Channel 1
42
S
Ramp Rate Channel 1
Where:
EC
Use to enable or disable a channel. Each channel can be individually enabled.
0 = Disable
1 = Enable
Inpt
Dta FM
CHI
x
Use this bit to select the form in which the analog data is returned to the controller and used in the control program.
EA
Use this bit to enable or disable the process alarms of a channel.
0 = Disable
1 = Enable
AL
Use this bit to enable or disable alarm latching on the process alarm of a channel.
0 = No latch
1 = Latch
EI
Use this bit to enable or disable interrupts on the process alarms of a channel.
0 = Disable
1 = Enable
EO
Use this bit to enable or disable Open Circuit functionality on a channel.
0 = Disable
1 = Enable
Open
Circuit
Ch
x
Use to set the Open Circuit Response for a channel.
0 = Upscale
1 = Downscale
2 = Last State
3 = Zero
OV
adjust
CJC is performed by default by taking the CJC sensor temperature value for a given channel, converting that to a thermocouple voltage, and adding that
voltage from the measured value before converting to a user value. If this bit is set for a given channel, the signal value is directly converted to a user value
(No cold junction compensation performed).
Wire &
CLCD
Use to set the wire mode. The combination of values in bits 14 and 15 determine the mode, as listed in the following table.
TU Ch
x
Use to set the temperature units.
0 = Degrees Celsius
1 = Degrees Fahrenheit
Table 18 - CompactLogix 5370 L2 Controller Embedded Analog I/O Module Configuration Image Array
Word
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit 15 Value
Bit 14 Value
Mode
0
0
3-wire and cycle lead compensation - Enable
0
1
3-wire and cycle lead compensation - Disable
1
0
2-wire (No lead compensation)
1
1
4-wire (No lead compensation)