Rockwell Automation 1771-IR , D17716.5.76 RTD INPUT MODULE - Manual (Page 37)

Module Calibration
Chapter 7
7Ć4
Figure 7.2
Resistor Location for Gain Calibration
18
16
14
12
10
8
6
4
2
C
B
A
C
B
A
C
B
A
C
B
A
C
B
A
C
B
A
12935
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Terminal
Identification
402.0 ohm Resistor
Repeat for
each channel
2. Apply power to the module.
3. After the connections stabilize, request the gain calibration by setting bit
01 in BTW word 15 and sending a block transfer write (BTW) to the
module. Refer to Table 7.A.
NOTE: Normally, all channels are calibrated simultaneously (bits 10–15 of
word 15 are octal 0). To disable calibration on any channel, set (1) the
corresponding bit 10 through 15 of word 15.
4. Queue BTRs to monitor for gain calibration complete and channels which
may not have calibrated successfully.