FT-3000 SERIES MODBUS SUPPLEMENT
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Sub-function code Description Comment
00 Return query date
response message should be identical to the request.
01 Restart communications Restart comms following forced listen
04 Force listen mode Activate listen mode
10 Clear diagnostic counters
11 Return bus message count
12 Return bus CRC error count
13 Return exception error count
14 Return slave message count
15 Return slave no response count
16 Return slave NAK count
17 Return slave busy count
18 Return bus character overrun count
Reset All Enabled Totalizers Using Function Code 05
MODBUS Diagnostic Tools Using Function Code 08
Sensor test results reported in register 0032
Bit 14: Resistance of electrode E1 outside limits with respect to reference value
Bit 13: Coil time B outside limits with respect to reference value
Bit 12: Coil time A outside limits with respect to reference value
Bit 11 Coil temperature is outside limits with respect to reference value
Bit 10: Coil leakage current is outside the limit
Bit 9: Coil driver output 2 voltage is out of tolerance during test phase 3
Bit 8: Coil driver output 1 voltage is out of tolerance during test phase 3
Bit 7 Coil driver output 2 voltage is out of tolerance during test phase 2
Bit 6: Coil driver output 1 voltage is out of tolerance during test phase 2
Bit 5: Coil driver output 2 voltage is out of tolerance during test phase 1
Bit 4: Coil driver output 1 voltage is out of tolerance during test phase 1
Bit 3: Coil driver power generator voltage is out of tolerance during test phase 2
Bit 2: Coil driver power generator voltage is out of tolerance during test phase 1
Bit 1: Coil driver generator value is out of tolerance during test phase 2
Bit 0: Coil driver generator value is out of tolerance during test phase 1
2.2 MEMORY MAP (CONTINUED)
Average ow rate calculation for register 0005 (see 0022)
on the measurement sample rate and the MODBUS reading requests.
Example: measurement sample rate = 50 Hz, MODBUS polling frequency = 10 Hz, the number of samples used for
average calculation is 50/10 = 5.
Function Code Address Description Data Format Comment
05 0001 1 = reset Coil
