310
Analog Input Terminals
Section 5-7
Indicators
The following table shows the meaning of the indicators.
DIP Switches
Always turn OFF the Slave before changing DIP switch settings.
SW101
Note
Make sure that the communications mode of the Slave is the same as that of
the Master Unit. If the communications modes are not the same, normal com-
munications with the Master Unit will not be possible. The operating status of
the Slave can be verified with LED indicators. Refer to
for
details.
Indicator
Status
Meaning
PWR (green)
ON
The communications power supply is ON.
OFF
The communications power supply is OFF.
COMM (yellow)
ON
Normal communications
OFF
A communications error has occurred or the Unit is in
standby status.
ERR (red)
ON
A communications error has occurred.
OFF
Normal communications or the Unit is in standby status.
U.ERR (red)
ON
An error has occurred in the Unit.
OFF
Normal communications or the Unit is in standby status.
Pin 1
Pin 2
Number of input points setting
OFF
OFF
4 points (Factory setting)
OFF
ON
3 points (Inputs 0 to 2 valid)
ON
OFF
2 points (Inputs 0 and 2 valid)
ON
ON
1 point (Input 0 valid)
Pin 3
Communications mode setting
OFF
High-speed Communications Mode (Factory setting)
ON
Long-distance Communications Mode
Pin 4
Always set to OFF.
Number of input points setting
Communications mode setting
Reserved (Always OFF.)
Node number setting