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Appendix A - Modb
us Variable Map
Appendix A - Modbus Variable Map
To communicat
e through fiber optics with the E-Flo
DC Control Mod
ule, reference the appropriate
hardware as sh
own in manual 332356. That
manual indic
ates various options for connecting
fiber optic ca
bles from the control module to the
non-hazardo
us area. The following table lists
Modbus regis
tersavailabletoaPCorPLClocatedin
the non-haz
ardous area.
Table 4 shows t
he registers needed for basic
operation, mo
nitoring, and alarm control features.
Tables 5 and 6 p
rovide bit definitions as needed for
certain regi
sters. Table 7 shows the units and how to
convert the r
egister value to a unit value.
Reference the Modbus communication settings
selected in Setup Screen 12, page 26.
Table 4 Modb
us Registers
Modbus
Register
Variable Register
Access
Size
Notes/Unit
s
404100
Pump Status Bits Read Only
16 Bit
See Table 5 for bit definitions.
404101
Actual Pump Speed Read Only
16 Bit
Speed units, see Table 7.
404102 Actual Pump Flow Rate
Read Only
16 Bit Flow units, see Table 7..
404103 Actual Pump Pressure
Read Only
16 Bit Percent pressure, see Table 7.
404104 Transdu
cer 1 Pressure
Read Only
16 Bit Pressur
e units, see Table 7.
404105 Transducer 2 Pressure
Read On
ly
16 Bit Pressure units, see Table 7.
404106 Batch Total High Word
Read Only
16 Bit Volume units, see Table 7.
40410
7
Batch
Total Low Word
Read Only
16 Bit Volum
e units, see Table 7.
404108
Gran
d Total High Word
Read
Only
16 Bit Pump cycles, see Table 7.
404109
Grand Total Low Word Read Only
16 Bit Pump cycles, see Table 7.
404
110
Mai
ntenance Total High Word
Read Only
16 B
it
Pum
p cycles, see Table 7.
404111 Maintenance Total Low Word
Re
ad Only
16 Bit Pump cycles, see Table 7.
404112 Pump Alarms High Word
Read Only
16 Bit
See Table 5 for bit definitions.
4
04113
P
ump Alarms Low Word
Read Only
1
6Bit
See Table 5 for bit definitions.
404114 Display Alarms High Word
R
ead Only
16 Bit
S
ee Table 5 for bit definitions.
404115 Display Alarms Low Word
Read Only
16 Bit
See Table 5 for bit definitions.
404200
Local/Remote Control
Read / Write 16 Bit
0 = local, 1 = remote/PLC
404201
Active Profile Number
Read / Write 16 Bit 0 = stopped, 1, 2, 3, 4
404202
Pump Control Bitfield
Read / Write 16 Bit
See Table 5 for bit definitions.
404203 Maintenance Interval High Word Read / Write 16 Bit Pump cycles, see Table 7.
404204 Maintenance Interval Low Word Read / Write 16 Bit Pump cycles, see Table 7.
403102 Display seconds
Read Only
16 Bit Use as heartbeat.
34 3A2527D