Trane PIC Installation Operation Maintenance/ Programming page 70

70
Maintenance
Fields description
- Protocol: PIC is a Modbus slave device. PIC is compatible with
Modbus RTU.
- Slave address: Modbus slave address the PIC answers to.
- Transmission speed (bauds): Configured Modbus baudrate
- Port: configured Modbus port (RS232 or RS485)
- Modbus table last update (sec): Time elapsed since the Trane Equipment
- Message sent: Number of messages the PIC transmitted over
the Modbus link
- Message received: Number of messages the PIC received over the
Modbus link
- Last message sent (sec): Time elapsed since the PIC sent the latest
- Last Message received (sec): Time elapsed since the PIC received the latest
- Last exception response transmitted (sec): Time elapsed since the last
- Last exception response code: Modbus exception code:
• Illegal Function (0x01): PIC has received a query for an unsupported
Modbus function
• Illegal Data Address (0x02): PIC has received a query for an
unsupported data (not in the data point list)
• Illegal Data Value (0x03): PIC has received a query with an illegal data
value (out of range)
• Slave Device Failure (0x04): Data table is not anymore updated but it
has been updated at least once.
• Data Table Not Updated (0x05): Data table has never been updated
Command description
- Pause: freezes the screen with current values
- Quit: exits the diagnostic tool
data point table was refreshed
message
message
exception response
BAS-SVX08D-E4