39
Switch Settings Section 2-2
2-2 Switch Settings
Remove the terminal block to expose the DIP switch underneath. Refer to the
CQM1H Operation Manual (W363) or the CQM1 Operation Manual (W226)
for the method of removing the terminal block.
Use a thin-tipped object, such as a small screwdriver, to set the switches.
CQM1-G7M21 Master
Pin 4 Not used (set to OFF).
Pin 3 HOLD/HOLD OFF Setting:
Sets the HOLD/HOLD OFF function. This setting determines whether the sig-
nal input status to the CPU is held when a transmission error occurs (HOLD)
or whether all input bits are cleared (HOLD OFF).
Pin 2 Output Word Setting:
Sets the number of output words (points) occupied at the Master.
Pin 1 Input Word Setting:
Sets the number of input words (points) occupied at the Master.
Note 1. Even when selected, the HOLD function does not operate in the following
cases:
DIP switch
All pins are factory-set
to OFF
OFF↔ON
→
Setting Description
ON Signal input status held when a transmission error occurs (HOLD).
OFF Signal input status cleared when a transmission error occurs (HOLD
OFF).
Setting Description
ON One word (16 points) of outputs.
OFF Two words (32 points) of outputs.
Setting Description
ON One word (16 points) of inputs.
OFF Two words (32 points) of inputs.
Error in the Master (CPU out of control,
etc.)
HOLD inoperative for Master and
Expansion Masters.
Error in Expansion Master (CPU out of
control, etc.)
HOLD operative for Master but inoper-
ative for Expansion Masters.
Cable discontinuity between Master
and Expansion Master
Shorting in transmission route
To Next Page
Loading...
Need help?
General
