Led Indicator; Mod (Module Status Led); Rxd (Receive Data Led); Txd (Transmit Data Led) - Hitachi HX-RIO3 Series User Manual

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2.3. LED Indicator

2.3.1 MOD (Module Status LED)

Status
Not Powered
Device Operational
Unrecoverable Fault

2.3.2 RXD (Receive Data LED)

Status
Not Powered or Not Linked
Adapter received correct
message frame

2.3.3 TXD (Transmit Data LED)

Status
Not Powered
Adapter transmit frame Flashing Green

2.3.4 IOS LED (Extension Module Status LED)

Status
Not Powered
No Expansion Module
Internal Bus Connection,
Run Exchanging I/O
Expansion Configuration
Failed
LED
MOD
RXD
TXD
IOS
LED To indicate
OFF Power is not supplied to the unit.
Green The unit is operating in normal condition.
The device has an unrecoverable fault.
Red
- Memory error or CPU watchdog error.
LED To indicate
OFF Device is idle or may not be powered.
Adapter (Slave) received correct frame which address to the
Green
slave or broadcast. About 20msec flashing
LED To indicate
OFF Device is idle or may not be powered.
Adapter (slave) transmit frame. About 20msec flashing.
LED To indicate
OFF Device may not be powered.
Flashing Red Adapter has no expansion module
Green Exchanging I/O data.
One or more expansion module occurred in fault state.
Red
module.
LED Function / Description
Module Status
Physical Connection
Exchange Data/Traffic Present
Expansion Module Status
- Detected invalid expansion module ID.
- Overflowed Input /Output Size
- Too many expansion module
- Initialization failure
- Communication failure.
- Changed expansion module configuration.
- Mismatch vendor code between adapter and expansion
HX-RIO3 Series
LED Color
Green/Red
Green
Green
Green/Red