GASSONIC Observer-i, Инструкция по эксплуатации

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GASSONIC OBSERVER-i
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6.7.17. Comm 2 Address (12H)
A read returns the Comm 2 address of the Gassonic Observer-i. A write changes the address to the
requested address. The range of the address is 1 to 247 (01 to F7 Hex). After the address has been
changed to the slave unit, the Modbus communications will cease because the address has changed;
therefore the master will have to change its query address to the slave’s new address in order to
restart the communications.
EXCEPTION - If an illegal data value is entered (must be between 1-0x00F7), then the Exception Code
03 (Illegal Data Value) is returned.
NOTE: The default address is 2.
6.7.18. Comm 2 Baud Rate (13H)
A read returns the Comm 2 baud rate of the Gassonic Observer-i. A write changes the baud rate to the
requested baud rate. After the baud rate has been changed to the addressed unit, the Modbus
communications will cease because the baud rate has changed; therefore the master will have to
change its baud rate to the slave’s new baud rate in order to restart the communications.
Baud Rate Low Data Byte Access
57.6K 06 Read/Write
38.4K 05 Read/Write
19.2K 04 Read/Write
9600 03 Read/Write
4800 02 Read/Write
2400 01 Read/Write
Table 19: Comm 2 Baud Rate
This function is indicated on the Low Data Byte (the High Data Byte is not used).
EXCEPTION - If an illegal data value is entered which is not listed above, then the Exception Code 03
(Illegal Data Value) is returned.
NOTE : The default Baud Rate is 19200.
6.7.19. Comm 2 Data Format (14H)
A read returns the Comm 2 data format of the Gassonic Observer-i. A write changes the data format to
the requested data format. After the data format has been changed to the addressed unit, the Modbus
communications may cease or start producing communication errors because the data format has
changed; therefore the master will have to change its data format to the slave’s new data format in
order to restart or provide proper communications.
Table 20: Comm 2 Data Format
This function is indicated on the Low Data Byte and the High Data Byte is not used.
EXCEPTION - If an illegal data value is entered which is not listed above, then the Exception Code 03
(Illegal Data Value) is returned.
Data Parity Stop Format
Low Data
Byte
Access
8 None 1 8-N-1 00 Read/Write
8
Even 1 8-E-1 01 Read/Write
8 Odd 1 8-O-1 02 Read/Write
8 None 2 8-N-2 03 Read/Write