Setting Cpu Link Module Switches; Table 4-1 Main/Sub Selector Switch Settings - Hitachi LQE550 User Manual

4.2 Setting CPU Link Module Switches

(1) MAIN/SUB selector switch
Two CPU link modules can be mounted on a single CPU or LPU, each being connected to a
separate line.
Number of units mounted
Do not set the MAIN/SUB selector switch to 2 to F. Switch setting to 2 to 4
may render the module inoperable or destroy transfer data (G000 to GFFF).
Switch off the power supply before operating any switches. Operating
switches with the power supply switched on may cause the module to fail.
(2) CPU number selector switch
Set this selector switch to a number between 0 to F for each CPU or LPU that is connected to
the CPU link line. The CPU number that is set here differs from the PCs number that is set
with a special tool.
Ensure that the CPU link modules connected to the same line do not have their CPU numbers
set in duplicate.
Switch off the power supply before operating any switches. Operating switches
with the power supply switched on may cause the module to fail.

Table 4-1 MAIN/SUB Selector Switch Settings

One
Two
First
"0" (main)
"0" (main)
NOTICE
NOTICE
4-3
4 OPERATION
Second
−
"1" (sub)