Athena C10 Communications Manual page 25

Notes:
1. Assignment of Setpoint to the addresses JbuS 2 and 4 writes the
Computer Setpoint. It is different from the Local Setpoint, which can
be in any case set by keypad.
2. Assignment of output at the address JbuS 3 is only possible if the
Auto/Man option if fitted and when the controller is in Manual mode.
3. Assignment of Setpoint to the address JbuS 5 writes the Local
Setpoint (the previous value is lost).
4. In case of ON - OFF output (address JbuS 6) the proportional band
is substituted by the output Hysteresis.
5. All the configuration parameters are accepted, if valid, but not
brought into effect. To execute the reconfiguration procedure and
bring the changes into effect, the code 55AAh must be written at the
address JbuS 121.
6. Address JbuS 121 is read only, but if the code 55AAh (21930d) is
written at this address, the configuration is brought into effect.
7. The JbuS 122 + 123 and 124 + 125 addresses contain the strings (of
4 characters) for the product and release codes: each address
represents two characters, the most significant byte in the word
contains the ASCII code of the second.
8. To select the engineering unit, the value between 0 and 10 must be
assigned as per the below table:
Engineering unit
9. To select the protocol type, the value between 0 and 1 must be
assigned as per the below table:
Protocol type
Modbus
10. To select the serial comm.s baud rate, the value between 0 and 3
must be assigned as per the below table:
Baud Rate
Serial value
°C
°F
none
nU
U
nA
A
bar
PSI
rh
Ph
Serial value
JbuS
Serial value
1200
2400
4800
9600
0
1
2
3
4
5
6
7
8
9
10
0
1
0
1
2
3
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