Rockwell Automation 1746-NT8 SLC 500 Thermocouple/mV Analog Input Module User Manual - Manual (Page 62)

Publication 1746-UM022B-EN-P - January 2005
5-6 Programming Examples
Data Table for Configuration Changes
After a channel configuration word is changed by the ladder logic, the
module may not update the processor’s input image until one update
time later. In order to ensure that the program is using the proper
input data, the ladder logic should wait one update time plus one
address 15 data 0 address 15 data 0
N10:0 0000 0010 0010 0011
N10:8 0000 0010 0011 1111
N10:1 0000 0010 0010 0011
N10:2 0000 0010 0010 0011
N10:3
0000 0010 0010 0011
N10:4 0000 0010 0010 0011
N10:5 0000 0010 0010 0011
N10:6 0000 0010 0010 0011
N10:7 0000 0010 0010 0011
Update Time Calculation
Ch 0 Update Time 0.470
Ch 0 Open Circuit Check 0.045
Ch 1 Update Time 0.470
Ch 1 Open Circuit Check 0.045
Ch 2 Update Time 0.470
Ch 3 Update Time 0.470
Ch 3 Open Circuit Check 0.045
Ch 4 Update Time 0.470
Ch 4 Open Circuit Check 0.045
Ch 5 Update Time 0.470
Ch 6 Update Time 0.470
Ch 6 Open Circuit Check 0.045
Ch 7 Update Time 0.470
Ch 7 Open Circuit Check 0.045
CJC Checking 0.290
Update Time 4.410
Auto-calibration Time Calculation
Auto-calibration for 10 Hz 1.975
Auto-calibration for 60 Hz 0.525
Total Auto-calibration 2.500
Max Time Between Updates 6.910