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EX500 Serial System
4 -3. LED display
Display
COM A
COM B
COM C
COM D
！ ！ ！ ！
CAUTION
When the Input Unit Manifold is not connected, the respective COM LED of the GW Unit will not light up.
To monitor the status of COM port, it is necessary to use a Terminal Plug.
The COM LED will light up when a Terminal Plug is used. ( Refer to section 3 -6 -4 )
4 -4. Operation setting
Turn the power supply OFF when setting switches.
Open the station switch protection cover and set the dip switch with a flat blade screw driver.
ON
RUN
SOL
BUS
COM
ERR
COM A
COM B
Source ON
RUN
Source OFF : Lights off
Solenoid valve source voltage is normal :Lights
SOL
Voltage lowered to 20V or less
RIO communication is normal
COM
RIO communication is abnormal
RIO communication is abnormal
ERR
RIO communication is normal
Communication port A is receiving data : Lights
Communication port A has no data
Communication port B is receiving data : Lights
Communication port B has no data
Communication port C is receiving data : Lights
Communication port C has no data
Communication port D is receiving data : Lights
Communication port D has no data
1
2
3
4
5
6
7
8
SW1
GATEWAY UNIT
EX500 SERIES
COM C
COM D
Content
: Lights
ON
1
2
3
4
SW2
- 18 -
:Lights off
: Lights
: Lights off
: Lights
: Lights off
: Lights off
: Lights off
: Lights off
: Lights off
SW3
EX## - OME0008
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