ABB RET 543 - 9.Parallel Communication Support

1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
75
1)
The change of Baud rate parameter value forces an automatic update of the Next characte
r timeout
p
arameter value to 1,5 character times. If the timeout value is lower then 2ms then it is disabled
(set
to 0
- not in use).
2)
The change of Baud rate parameter value forces an automatic update of End Of Fr
ame timeout
p
arameter value to 3,5 character times.
3) The change of Parity parameter value forces an automatic update of the number of stop bits to 1, with
parity used, and to 2 for parity none.
4) The cou
nters are 16 bit cyclical counters, after reaching 0xFFFF (65535) next increm
ent changes the
value back to 0
x0000. The default setting is reset to 0 at system start.
5.1.13.9. Parallel communication support
When SPA is used, the rear side communication is not stopped when the front
connector is “active”. This enables e.g. uploading the disturbance records without
affecting the communication to upper level.
Moreover, if LON is selected as a communication protocol and the front connector
is “active”, transparent SPA write commands are not inhibited via the LON bus.
Protocol mapping
diagnostic parameter
0 Number of entries not in use
Protocol mapping
diagnostic parameter
0 Number of entries with invalid,
uncorrectable contents (INV)
Protocol mapping
diagnostic parameter
0 Number of entries with corrected
contents (COR)
Protocol mapping
diagnostic parameter
0 Number of entries referring to
nonexistent block (NBL)
Protocol mapping
diagnostic parameter
of NOB entries
0 Number of entries referring to invalid
objects from existing block (NOB)
Protocol mapping
diagnostic parameter
0 Number of entries translated to
operational protocol mapping
Baud rate
0...6
1) 2)
[0=300
1=600
2=1200
3=2400
4=4800
5=9600
6=19200]
6
Number of stop bits
0...2
3)
1
Next character
timeout
0=Not in use,
2...65535 [ms]
1)
1000
(ASCII)
0 (RTU)
End Of Frame timeout
2....65535 [ms]
2)
1000
(ASCII)
2 (RTU)
Parity
0...2
3)
[0=None
1=Odd
2=Even]
2
Number of data bits 5...8 7 (ASCII)
8 (RTU)
Frame error counter 0...65535 0
Frame error counter
4)
Parity error counter 0...65535 0
Parity error counter
4)
Overrun error counter 0...65535 0
Overrun error counter
4)
Protocol mapping
diagnostic parameter
Protocol mapping name
Protocol mapping
diagnostic parameter
Modbus protocol mapping file