Hitachi IR.LINK User Manual page 88

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 the S10V IR.LINK System and save the set values of all the existing parameters by
using its F/D function. (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 IR.LINK module to be replaced.
⑦ Replace the existing IR.LINK module with the new one and set the new IR.LINK
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 and send to the new IR.LINK module the
set parameter values that you saved in Step ④ using the F/D function.
⑨ By using the F/D function, compare the set parameter values before and after you sent.
This comparison may reveal a discrepancy for the following memory areas:
/A3BFFE for the main IR.LINK module mounted
/ABBFFE for the IR.LINK sub-module mounted
However, if no discrepancies are found for any other area, the set parameter values (system
information) for the new IR.LINK module may be considered as being identical between
the saved file and memory.
⑩ Reset the LPU module by setting the RESET switch in ON position and then in OFF
position at its front.
⑪ Turn off the power supply of the controller unit.
⑫ Remove the RS-232C cable from both the personal computer and LPU module, which
were connected together in Step ③.
⑬ Connect to the new IR.LINK module the connecting cables that you removed in Step ⑥.
←
←
IR.
LINK
RS-232C cable
LPU module's toggle and
6-3
6 MAINTENANCE
Rotary switches
rotary switches settings
LADDER
RUN STOP
T/M
RESET
ON OFF