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7.1.1 Replacing or adding on the module
What you should get in preparation
① Personal computer (with Hitachi's S10V ET.NET System installed in it)
② RS-232C cable
③ New or add-on ET.NET module (LQE521)
④ Copies of the parameter values for the module to be replaced. (These copies are prepared
for use in cases where the parameters are not accessible for some reason.)
Replacement procedure
① Write down, on a piece of paper, the current settings of the rotary switches that are, as
shown below, accessible at the front side of the ET.NET module to be replaced.
② Write down also the current settings of two switches, labeled LADDER (toggle switch)
and T/M (rotary switch), respectively, that are, as shown below, accessible at the front side
of the LPU module.
LPU
Power
RS-232C
supply
③ Connect the personal computer and the LPU module together with the RS-232C cable.
④ Start Hitachi's S10V ET.NET System and make a hand-written record of the currently
used IP address. (If the existing parameters are not accessible for some reason, use the
copies of their set values [item ④] that were obtained in preparation.)
⑤ Set the LPU module's LADDER switch in STOP position and turn off the power supply of
the controller unit.
⑥ Remove the connecting cables from the ET.NET module to be replaced.
⑦ Replace the existing ET.NET module with the new one and set the new ET.NET module's
rotary switches in the same way as you wrote down in Step ①.
⑧ Turn on the power supply of the controller unit. Then, set the same IP address as you
recorded in Step ④, by using the S10V ET.NET System.
←
ET.NET
RS-232C cable
LPU module's toggle and
7-3
7 MAINTENANCE
Rotary switches
rotary switches settings
LADDER
RUN
STOP
T/M
RESET
ON
OFF
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