GE DigitalFlow XGS868i Programming Manual page 136

Appendix C. Programming the XGS868i Using PanaView™
C.6.3b Requesting Parameters Using MODBUS
To request specific parameters from the XGS868i via the MODBUS, the control system must access the appropriate
register number, as shown in Table 31. Only registers 1–84 are available with the XGS868i for MODBUS
communications. Registers 508–512 are used by the XGS868i to store the MODBUS parameters.
:
MODBUS DPR Hex
Reg # Addr
1
2
4
6
8
10
11
13
14
16
18
20
22
24
26
28
29
31
32
34
36
38
40
42
126
Table 31: MODBUS Registers
Description
1
Clear Totalizers
CH1 Velocity ft/s or m/s
CH1 Volumetric
CH1 +Totals
CH1 -Totals
CH1 #T Digits
CH1 Totalizer Time
2
CH1 Error Value
CH 1 SSUP
CH 1 SSDN
CH 1 SNDSP ft/s or m/s
CH 2 Velocity ft/s or m/s
CH 2 Volumetric
CH 2 +Totals
CH 2 -Totals
CH2 # T Digits
CH2 Totalizer Time
2
CH2 Error Value
CH 2 SSUP
CH 2 SSDN
CH 2 SNDSP ft/s or m/s
ft/s or m/s
3
AVG Velocity
3
AVG Volumetric
3
AVG+Totals
Scaling
Units (decimal places)
none --
2
VOL_U --
TOT_U Register 10
TOT_U Register 10
none 0
sec 2
none 0
none 1
none 1
0
2
VOL_U --
TOT_U Register 28
TOT_U Register 28
none 0
sec 2
none 0
none 1
none 1
0
2
VOL_U --
TOT_U Register 46
DigitalFlow™ XGS868i Programming Manual
Size in Bytes
2 (16 bit signed)
4 (32 bit integer)
4 (IEEE 32 bit)
4 (32 bit integer)
4 (32 bit integer)
2 (16 bit integer)
4 (32 bit integer)
2 (16 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (IEEE 32 bit)
4 (32 bit integer)
4 (32 bit integer)
2 (16 bit integer)
4 (32 bit integer)
2 (16 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (32 bit integer)
4 (IEEE 32 bit)
4 (32 bit integer)