Rockwell Automation 1395 Digital Reference Adapter Board - Manual (Page 37)

Chapter 5
Programming Parameters
5-12
Parameter 555 – [A > Analog Offset 1]
Parameter 505 – [B > Analog Offset 1]
Programming Terminal units: Volts
Minimum Value: – 10 VDC
Maximum Value: + 10 VDC
Default Value: 0.0 VDC
Description: This parameter determines the analog offset applied to the
Analog Input 1 signal prior to the analog signal amplification. This
allows the signal to be shifted close to zero volts prior to being
amplified.
Parameter 556 – [A > Analog PR GN2]
Parameter 506 – [B > Analog PR GN2]
Use : Analog Programmable Gain for Analog Input 2
Programming Terminal units: None
Minimum Value: 4
Maximum Value: 0
Default Value: 0
Description: This parameter digitally determines the analog gain for
Analog Input 2 The only allowable values for this parameter are per
Table 5.C:
Table 5.C
VALUE
0
1
2
3
4 GAIN
1
2
4
8
16
This analog gain is applied to the Analog Input 2 after the analog offset
is applied so that the input signal can have any appreciable offset
removed prior to being amplified. The amplification is important in
order to provide as much signal resolution to the input of the analog to
digital converter. In addition, if necessary, this gain can be modified
actively during Drive operation to provide programmable trim gain
should the application require it.
Parameter 557 – [A > Analog Offset 2]
Parameter 507 – [B > Analog Offset 2]
Use : Offset for Analog Input 2
Programming Terminal units: Volts
Minimum Value: –10 VDC
Maximum Value: +10 VDC
Default Value: 0.0 VDC
Description: This parameter determines the analog offset applied to the
Analog Input 2 signal prior to the analog signal amplification. This
allows the signal to be shifted close to zero volts prior to being
amplified.