Hitachi CMU Series User Manual page 151

6 MAINTENANCE
③ Interconnect the personal computer and the LPU module with the RS-232C cable, start the
S10V Base System tool, and then take a note of the CMU module's IP address. (In
addition to the IP address, take also a note of the battery remaining time and the date and
time of the last replacement of the battery if the CMU module is of model LQP525 or
LQP527.)
④ Make sure that your entire application system (under control of the S10V controller) is
stopped, and then set the LPU module's LADDER switch in STOP position.
⑤ Turn off the power supply mounted in the controller unit and remove the communication
cable from the CMU module. (If the CMU module is of model LQP525 or LQP527,
remove also the battery cable from it.)
⑥ Replace the existing CMU module with a new one and then set the new module's T/M
(rotary) switch in "A" position. (If the new module is of model LQP525 or LQP527, it is
provided with the BATT.SEL switch in place of the T/M switch, so set the BATT.SEL
switch in "A" position.)
⑦ Turn on the power supply mounted in the controller unit and initialize the task
environment. (For details on the initialization procedure, refer to Section 3.23, "Initialize
the Task," of the SOFTWARE MANUAL, OPERATION, S10V CPMS DEBUGGER For
Windows® (Manual number SVE-3-126).
⑧ Use the S10V Base System to check if the IP address of the new CMU module is identical
to the one you took a note of in Step ③. If they are not identical to each other, set an
identical IP address for the new module. (If the new CMU module is of model LQP525
or LQP527, set also the battery remaining time and the date and time of the last
replacement of the battery.)
⑨ Interconnect the personal computer and the new CMU module with the 10BASE-T cross
cable and then load necessary application programs to the new module. For information
on how to interconnect them, see "4.1 CMU Operations."
⑩ Turn off the power supply mounted in the controller unit.
⑪ Connect to the new CMU module the cable(s) that you removed in Step ⑤.
⑫ Remove from the LPU module the RS-232C cable that you connected to it in Step ③.
⑬ Set the LPU module's LADDER and T/M switches back in the positions you took a note of
in Step ②, and set the new CMU module's T/M switch or ST.No. and BATT.SEL
switches to the position(s) you took a note of in Step ①.
⑭ Turn on the power supply mounted in the controller unit and check that the new CMU
module, as well as the controller, is running normally.
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