Rockwell Automation 57C442 Data Highway Plus Interface Module - Manual (Page 17)

3-3
3.3 Module Replacement
Use the following procedure to replace the Data Highway Plus Interface
module:
Step 1. Stop any application tasks that may be running.
Step 2. Turn off power to the rack. All power to the rack as well as all
power leading to the rack should be off.
Step 3. Disconnect the cable from the module faceplate.
Step 4. Use a screwdriver to loosen the screws that hold the module
in the rack. Take the module out of the slot in the rack.
Step 5. Take the new module out of its shipping container. Take it out
of the anti-static bag, being careful not to touch the
connectors on the back of the module.
Step 6. Insert the module in the rack, making sure that it is well-
seated in the rack.
Step 7. Set the station number of the new module to the same
number as the old module by using the two thumbwheel
switches on the module faceplate. The upper switch is the
most significant digit and the lower switch is the least
significant digit.
Step 8. Attach the Data Highway Plus cable to the module faceplate.
Step 9. Turn on power to the rack.
Step 10. After power-up diagnostics are complete, the green status
LED will go on. Verify the installation by monitoring registers
on the module. Refer to Appendix I.
!
ATTENTION: his equipment is at line voltage when AC power
is connected. Disconnect and lock out all ungrounded conductors
of the AC power line. Failure to observe these precautions could
result in severe bodily injury or loss of life.
!
ATTENTION: Inserting or removing a module may result in
unexpected machine motion. Power to the machine should be
turned off before inserting or removing the module.Failure to
observe these precautions could result in bodily injury.
!
ATTENTION: This module contains static-sensitive
components. Careless handling can cause severe damage. Do
not touch the connectors on the back of the module. When not
in use, the module should be stored in an anti-static bag. The
plastic cover should not be removed. Failure to observe this
precaution could result in damage to or destruction of the
equipment.