Rockwell Automation 1771-IR Series D RTD Input Module User Manual - Manual (Page 17)

2–3 Installing the RTD Input Module
Publication 1771Ć6.5.129 - March 2000
Group your modules to minimize adverse affects from radiated
electrical noise and heat. We recommend the following.
•
Group analog input and low voltage dc modules away from ac
modules or high voltage dc modules to minimize electrical noise
interference.
•
Do not place this module in the same I/O group with a discrete
high-density I/O module when using 2-slot addressing. This
module uses a byte in both the input and output image tables for
block transfer.
Key the Backplane
Connector
Place your module in any slot in the chassis
except the leftmost slot which is reserved for
processors or adapters.
ATTENTION: Observe the
following precautions when
inserting or removing keys:
•
insert or remove keys with
your fingers
•
make sure that key placement
is correct
Incorrect keying or the use of a
tool can result in damage to the
backplane connector and possible
system faults.
!
Position the keying bands in the backplane connectors to correspond to
the key slots on the module.
Place the keying bands:
between 10 and 12
between 28 and 30
You can change the position of these bands if
subsequent system design and rewiring makes
insertion of a different type of module necessary.
Upper
Connector
11022ĆI
I/O chassis
!
ATTENTION: Remove power from the 1771 I/O
chassis backplane before you install the module.
Failure to remove power from the backplane
could cause:
• Smodule damage
• Sdegradation of performance
• Sinjury or equipment damage due to possible
unexpected operation
Install the Module and
Field Wiring Arm