Notes:
1.
Clear totalizers:
flag from the 8051 to clear totalizers
in the 68332 memory.
2.
Error value:
see table in XGF868i manual for error codes
3.
Average:
Average of channel 1 and channel 2
if both channels out of error,
channel 1 value if channel 2 is in error,
channel 2 value if channel 1 is in error,
zero if both channels in error.
4.
Average error status:
0 = both in error
1 = chan 2 in error,
2 = chan 1 in error, 3 = both ok
5.
MODBUS baud rate:
5 = 2400, 6 = 4800, 7 = 9600
6.
MODBUS parity:
0 = none, 1 = odd, 2 = even
7.
MODBUS stop bits:
1 = 1 stop bit, 2 = 2 stop bits
8.
General:
Registers are written if corresponding functions are
actuated by the user. Registers for unactuated functions
are initialized to zero at startup.
Table 27: MODBUS registers
MODBUS
reg #
DPR hex
addr
Description
Scaling (decimal places)
Size in bytes
MODBUS
reg #
87
AC
Avg timer
2
4 (2 16-bit int)
87
89
B0
5Avg error code
0
2
89
90
B2
Avg sound s speed
3
4 (2 16-bit int)
90
508
3F6
2MODBUS baud rate
0
2
508
74
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