SI-I/O User Guide
21
Issue Number: 3
Terminals 7 and 8 can be configured as digital inputs, analog voltage inputs or a single differential analog input.
When Pr
S.01.015
or Pr
S.01.016
are set to Digital Input (0), terminals T7 or T8 will be configured as digital inputs.
When Pr
S.01.015
or Pr
S.01.016
are set to Volt IN (1), terminals T7 or T8 will be configured as independent single ended analog voltage inputs.
When either Pr
S.01.015
or Pr
S.01.016
are set to Differential (2), the terminals T7 and T8 are combined so that they can be used as a high precision
differential analog voltage input with T7 as the positive input and T8 as the negative input. This will disable the single ended analog voltage input
parameters and they will not update.
A combination of setting these parameters to either Digital Input (0) or Volt IN (1) is permitted between the two terminals so that one terminal can be
used as digital input and the other can be configured as a single ended analog voltage input.
Setting either of these parameters to Differential (2) will override any other value in the other mode parameter to configure both inputs as a single
differential analog input.
The value of Differential (2), is only available with SI-I/O firmware V01.00.01.xx and later. To use the differential analog input in previous firmware,
Pr
S.01.015
and Pr
S.01.016
must both be set to Volt IN (1).
Terminal 9 can be configured as a digital input, an analog voltage input or an analog current input.
The table below shows all possible values of Pr
S.01.017
.
Terminal 11 can be configured as a digital input, an analog voltage output or an analog current output.
S.01.015
T7 Digital Input 5, Analog Input 1 Mode
S.01.016
T8 Digital Input 6, Analog Input 2 Mode
Minimum
0
Maximum
1
Default
1
Units
Type
8 Bit User Save
Update Rate
Background read
Display Format
None
Decimal Places
0
Coding
RW, TE
Value
Text
Description
Function of T7
Function of T8
0
Digital Input
Digital Input
Digital Input 5
Digital Input 6
1
Volt IN
Analog Voltage Input
Analog Input 1
Analog Input 2
2
Differential
Differential Analog
Voltage Input
Positive Differential
Analog Input
Negative Differential
Analog Input
NOTE
S.01.017
T9 Digital Input 7, Analog Input 3 Mode
Minimum
0
Maximum
11
Default
1
Units
Type
8 Bit User Save
Update Rate
Background read
Display Format
None
Decimal Places
0
Coding
RW, TE
Value
Text
Description
0
Digital Input
Digital Input 7
1
Volt IN
±10 V Analog voltage Input
2
4-20 mA Low 4-20 mA switching to equivalent of 4 mA input current on loss
3
20-4 mA Low 20-4 mA switching to equivalent of 20 mA input current on loss
4
4-20 mA Hold 4-20 mA hold at level before loss on loss
5
20-4 mA Hold 20-4 mA hold at level before loss on loss
6
0-20 mA
0-20 mA
7
20-0 mA
20-0 mA
8
4-20 mA Trip
4-20 mA trip on loss
9
20-4 mA Trip
20-4 mA trip on loss
10
4-20 mA
4-20 mA no action on loss
11
20-4 mA
20-4 mA no action on loss
S.01.018
T9 Digital Input 8, Analog Output 1 Mode
Minimum
0
Maximum
5
Default
1
Units
Type
8 Bit User Save
Update Rate
Background read
Display Format
None
Decimal Places
0
Coding
RW, TE