Table 10: MODBUS registers for a 2-channel XGF868i
MODBUS
Reg #
DPR hex
addr
Description
Scaling
(decimal places)
Size in bytes
84
A6
Avg rev mass totals
#MT DIGITS
4 (2 16-bit int)
86
AA
Avg #mass tot digits
0
2
87
AC
Avg timer
2
4 (2 16-bit int)
89
B0
5Avg error code
0
2
90
B2
Avg sound speed
3
4 (2 16-bit int)
508
3F6
2MODBUS baud rate
0
2
509
3F8
3MODBUS parity
0
2
510
3FA
4MODBUS stop bits
0
2
511
3FC
MODBUS meter addr
0
2
512
3FE
RESERVED
---
---
1.
Clear totalizers:
Flag from the 8051 to clear either the channel 1 or
channel 2 totalizers.
2.
MODBUS baud rate:
5 = 2400, 6 = 4800, 7 = 9600
3.
MODBUS parity:
0 = none, 1 = odd, 2 = even
4.
MODBUS stop bits:
1 = 1 stop bit, 2 = 2 stop bits
5.
AVG error code:
0=Both Ch1 and Ch2 are in error. 1=Ch1 only is in error
1=Ch1 only is in error
2=Ch2 only is in error
3=Both channels are error free.
21
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