Menu 3 - Analog I/O; Parameter - Emerson SI-I/O User Manual

How to use this Safety
Introduction
guide information
7.4

Menu 3 - Analog I/O

Menu 3 on the module controls and displays all parameters associated with the Analog I/O.
S.03.001 Analog Input 1
S.03.002 Analog Input 2
S.03.003 Analog Input 3
Minimum -100.00
Default
Type 16 Bit Volatile
Display Format None
Coding RO, FI, ND, NC, PT
Analog inputs 1, 2 and 3 have a resolution of 12 bits. The input can operate in different modes as defined the mode selected in Pr S.01.015 to Pr
S.01.017 including current modes.
The "Input Level" is defined for the different modes as shown in the table below.
Mode
Volt IN (Input Voltage / 10 V) x 100.00 %
0-20mA (Input Current / 20 mA) x 100.00 %
20-0mA ((20 mA – Input Current) / 20 mA) x 100.00 %
4-20mA ((Input Current – 4 mA) / 16 mA) x 100.00 %
20-4mA ((20 mA – Input Current) / 16 mA) x 100.00 %
Analog Inputs 1-3 (Pr S.03.001 to Pr S.03.003) are derived as follows (Analog Input 1 is used for this example):
A is the value after the minimum and maximum limits are applied.
1
If Analog Input 1 Minimum (Pr S.03.014) ≥ Analog Input 1 Maximum (Pr S.03.015) then: A
If Analog Input 1 Minimum (Pr S.03.014) < 0.00% and Analog Input 1 Maximum (Pr S.03.015) > 0.00 % then:
Input Level is limited between - Analog Input 1 Minimum (Pr S.03.014) and + Analog Input 1 Maximum (Pr S.03.015).
A = Input Level x (100.00 % / Analog Input 1 Maximum (Pr S.03.015)
1
Otherwise:
Input Level is limited between Analog Input 1 Minimum (Pr S.03.014) and Analog Input 1 Maximum (Pr S.03.015).
A = [(Input Level - Analog Input 1 Minimum (Pr S.03.014)) x 100.00 %] / [Analog Input 1 Maximum (Pr S.03.015) - Analog Input 1 Minimum (Pr
1
S.03.014)].
S.03.004 Differential Analog Input
Minimum -100.0000
Default
Type 32 Bit Volatile
Display Format None
Coding RO, ND, NC, PT
The Differential Analog Input has a resolution of 16 bits. The minimum resolution of Pr S.03.004 is 0.0030518 % (100 / 215 %).
The level of Differential Analog Input (Pr S.03.004) is calculated in the same way as Analog Inputs 1-3 (Pr S.03.001 - Pr S.03.003).
NOTE
The differential analog input is only available on Unidrive M600 - M800.
S.03.005 Analog Output 1
Minimum -100.00
Default 0.00
Type 16 Bit Volatile
Display Format None
Coding RO, PT
Analog Output 1 (Pr S.03.005) has a resolution of 12 bits plus sign. Analog Output 1 (Pr S.03.005) shows the value passed by Analog Output 1
Source (Pr S.03.006) which is then scaled by Analog Output 1 Scaling (Pr S.03.007) and clamped between -100.00 and 100.00%.
NOTE
The analog output is only available on Unidrive M600 - M800.
24
Mechanical Electrical Single line
installation installation descriptions
Maximum 100.00
Units %
Update Rate 250 µs write
Decimal Places 2
Input Level
Maximum 100.0000
Units %
Update Rate 4 ms write
Decimal Places 4
Maximum 100.00
Units %
Update Rate Background read
Decimal Places 2
Parameters Block diagrams Diagnostics
= 0.00 % whatever the input level is.
1
Technical Data Index
SI-I/O User Guide
Issue Number: 3