Emerson E300 Series - Page 275

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E300 Design Guide 275
Issue Number: 1
See T24 Digital I/O 01 State (F03).
See T24 Digital I/O 01 Source/Destination (F18).
Each analog input has a resolution of 11 bits plus sign. The inputs can operate in different modes (defined by T5 T6 Analog Input 1 Mode (F38) for
analog input 1). These modes include voltage, current and thermistor modes. The available modes depend on the hardware configuration and are
given in the table below.
The "Input Level" is defined for the different modes in the table below.
T5 T6 Analog Input 1 (F35) is derived as follows:
Limits
A
1
is the value after the minimum and maximum limits are applied.
If T5 T6 Analog Input 1 Minimum (F43) ≥ T5 T6 Analog Input 1 Maximum (F44) then:
A
1
= 0.00% whatever the input level.
If T5 T6 Analog Input 1 Minimum (F43) < 0.00 % and T5 T6 Analog Input 1 Maximum (F44) > 0.00 % then:
A
1
= Input Level x (100.00 % / T5 T6 Analog Input 1 Maximum (F44))
A
1
is then limited between -100 % and +100 %.
Otherwise:
Input Level is limited between T5 T6 Analog Input 1 Minimum (F43) and T5 T6 Analog Input 1 Maximum (F44)
A
1
= [Input Level - T5 T6 Analog Input 1 Minimum (F43)] x 100.00 % / (T5 T6 Analog Input 1 Maximum (F44) - T5 T6 Analog Input 1 Minimum (F43))
F33 T2 24V Supply Input State
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default Units
Type 1 Bit Volatile Update Rate 2 ms write
Display Format Standard Decimal Places 0
Coding RO, ND, NC, PT
F34 T2 24V Supply Input Invert
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default 1 Units
Type 8 Bit User Save Update Rate Drive reset read
Display Format Standard Decimal Places 0
Coding RW, TE
Value Text
0Off
1On
F35 T5 T6 Analog Input 1
Mode Open-Loop, RFC-A, RFC-S
Minimum -100.00 Maximum 100.00
Default Units %
Type 16 Bit Volatile Update Rate 4 ms write
Display Format Standard Decimal Places 2
Coding RO, Fl, ND, NC, PT
Internal IO Identifier (J66) Analog Input 1 Analog Input 2 Analog Input 3
0: Standard Analog and Digital I/O Bipolar Voltage, Current Bipolar Voltage, Current Bipolar Voltage, Thermistor
Mode Input Level
Voltage (Input Voltage / 10 V) x 100.00 %
0-20 mA (Input Current / 20 mA) x 100.00 %
20-0 mA ((20mA - Input Current) / 20 mA) x 100.00 %
4-20 mA ((Input Current - 4 mA) / 16 mA) x 100.00 %
20-4 mA ((20 mA - Input Current) / 16 mA) x 100.00 %