Rockwell Automation 1746-NT4 Series B,D17466.6.1 SLC 500 4-Channel Thermocouple/mV Input Module User Manual - Manual (Page 78)

Publication 1746-UM007C-EN-P - July 2004
6-8 Ladder Programming Examples
Example - Command the NT4 to perform an autocalibration of
channel 0. The NT4 is in slot 3.
Program Listing
] [
Condition for
Autocalibration
I:1
0
Rung 2:0 Channel 0 Enable
B3
0
(U)
O:3.0
11
Channel 0 Flag
(L)
B3
1
]/[
Channel 0 Status
I:3.4
11
Rung 2:0 Channel 0 Enable
B3
1
(L)
O:3.0
11
Channel 0 Flag
(U)
B3
1
Channel 0 Flag
[OSR]
] [
IMPORTANT
The NT4 responds to processor commands much
more frequently than it updates its own LEDs.
Therefore, it is normal to execute these two rungs
and have the NT4 perform an autocalibraion of
channel 0 without the channel 0 LED ever changing
state.