Emerson E300 Series - Page 277

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Diagnostics Optimization CT MODBUS RTU Technical Data
E300 Design Guide 277
Issue Number: 1
The table below gives all the possible analog input modes.
(1) Analog input level is 0.00 % if the current is below 3 mA.
(2) Analog input level remains at the value it had in the previous sample before the current fell below 3 mA.
(3) A An Input 1 Loss is initiated if the current falls below 3 mA.
T5 T6 Analog Input 1 (F35) is modified by T5 T6 Analog Input 1 Scaling (F39), T5 T6 Analog Input 1 Offset (F42) and T5 T6 Analog Input 1 Invert
(F40) before it is routed to its destination as follows:
A
1O
= T5 T6 Analog Input 1 (F35) + T5 T6 Analog Input 1 Offset (F42)
A
1O
is the value after the offset has been applied and is limited between -100.00 % and 100.00 %
A
1S
= A
1O
x T5 T6 Analog Input 1 Scaling (F39)
A
1S
is the value after the scaling and the offset have been applied and is limited between -100.00 % and 100.00 %
F38 T5 T6 Analog Input 1 Mode
Mode Open-Loop, RFC-A, RFC-S
Minimum -4 Maximum 6
Default 6 Units
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW, TE
Value Text
-4 4-20 mA Low
-3 20-4 mA Low
-2 4-20 mA Hold
-1 20-4 mA Hold
00-20 mA
1 20-0 mA
2 4-20 mA Trip
3 20-4 mA Trip
44-20 mA
5 20-4 mA
6Volt
Mode Function
4-20 mA Low 4-20 mA low value on current loss (1)
20-4 mA Low 20-4 mA low value on current loss (1)
4-20 mA Hold 4-20 mA hold at level before loss on current loss (2)
20-4 mA Hold 20-4 mA hold at level before loss on current loss (2)
0-20 mA 0-20 mA
20-0 mA 20-0 mA
4-20 mA Trip 4-20 mA trip on current loss (1), (3)
20-4 mA Trip 20-4 mA trip on current loss (1), (3)
4-20 mA 4-20 mA no action on loss (1)
20-4 mA 20-4 mA no action on loss (1)
Voltage Voltage
Therm Short Cct Temperature measurement input with short circuit detection
Thermistor Temperature measurement without short circuit detection
Therm No Trip Temperature measurement input with no trips
F39 T5 T6 Analog Input 1 Scaling
Mode Open-Loop, RFC-A, RFC-S
Minimum 0.000 Maximum 10.000
Default 1.000 Units
Type 16 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 3
Coding RW