Hitachi HX-RIO3 Series User Manual page 27

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Sub-function Data Field (Request)
0x000D (13) 0x0000
Sub-function 0x000E (14) Return Slave Message Count
The response data field returns the quantity of messages addressed to the remote device, or broadcast, that
the remote device has processed since its last restart, clear counters operation, or power–up.
Sub-function Data Field (Request)
0x000E (14) 0x0000
Sub-function 0x000F (15) Return Slave No Response Count
The response data field returns the quantity of messages addressed to the remote device for which it has
returned no response (neither a normal response nor an exception response), since its last restart, clear
counters operation, or power–up.
Sub-function Data Field (Request)
0x000F (15) 0x0000
Sub-function 0x0064 (100) Return Slave Modbus, Expansion Status
The response data field returns the status of Modbus and expansion addressed to the remote device.
This status values are identical with status 1word of input process image.
Sub-function Data Field (Request)
0x0064 (100) 0x0000
Data Field (Response)
Exception Error Count
Data Field (Response)
Slave Message Count
Data Field (Response)
Slave No Response Count
Data Field (Response)
Modbus, G-Bus Status
HX-RIO3 Series
Description
Description
Description
Description
Same as status 1word