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EX500 Serial System
5 -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 )
5 -4. Operation setting
Turn the power supply OFF when setting switches.
Open the station switch protection cover and set the rotary switch with a flat blade screw driver.
SW1
BUS
MS
NS
SOL
COM A
COM B
Operating in a normal condition
MS
Recoverable fault ( Memory is abnormal ) : Red lights
Not online
Online , Not Allocated
NS
Online , Allocated
Connection Time - Out
Critical Link Failure
Solenoid valve source voltage is normal
SOL
Voltage lowered to 20V or less
Communication port A is receiving data
Communication port A has no data
Communication port B is receiving data
Communication port B has no data
Communication port C is receiving data
Communication port C has no data
Communication port D is receiving data
Communication port D has no data
SW2
GATEWAY UNIT
EX500 SERIES
COM C
COM D
Content
8
7
SW3
Figure of setting switch
- 23 -
: Green lights
: Lights off
: Green flashing
: Green lights
: Red flashing
: Red lights
: Lights
: Lights off
: Lights
: Lights off
: Lights
: Lights off
: Lights
: Lights off
: Lights
: Lights off
0
9
1
2
3
6
4
5
EX## - OME0008
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