Flow Chart For Calibration Procedure - Allen-Bradley 1794-IT8 User Manual

6–4 Calibrating Your Module
Apply reference signal for offset
calibration to each channel to
be calibrated.
Set corresponding bits in the
calibration mask and set cal
Set cal–clk =1
NO
Cal–done = 1
NO
Bad–cal = 0
Exit Cal–range = 0
Set cal–clk =0
NO
Cal–done = 0
Legend:
BTW = block transfer write
BTR
= block transfer read
Publication 1794-6.5.7 – April 1997

Flow Chart for Calibration Procedure

Hi/Lo = 0
BTW
BTW
BTR
?
YES
?
YES
BTW
BTR
?
YES
Apply reference signal for gain
calibration to each channel to
be calibrated.
Retain corresponding bits in
the calibration mask and set
cal Hi/Lo = 1
BTW
Set cal–clk =1
BTW
BTR
NO
Cal–done = 1
?
YES
NO
Bad–cal = 0
Exit Cal–range = 0
?
YES
Set cal–clk =0
and
cal hi/lo = 0
BTW
BTR
NO
Cal–done = 0
?
YES
Clear corresponding bits in
the calibration mask
BTW