Technical information

10 – APPENDIX
160
Modbus Registers
Absolute Register
Address
Description R/W Range Units
30347/40347 Line Period –
7th Most Recent Fault
Log Entry
R micro-
seconds
30348/40348 Line Period –
8th Most Recent Fault
Log Entry
R micro-
seconds
30349/40349 Line Period –
9th Most Recent Fault
Log Entry
R micro-
seconds
Starter Control Register:
Bit 0 – Run/Stop 0 Stop
1 Start
Bit 1 – Fault Reset 0 No action
1 Fault Reset
Bit 2 –Emergency Overload
Reset
0 No action
1 Emergency Overload Reset
Bit 3 –Local/Remote 0 Local
1 Remote
Bit 4 –Heat Disabled 0 Heater Enabled
1 Heater Disabled
Bit 5 –Ramp Select 0 Ramp 1
1 Ramp 2
Bit 13 – Relay 3 0 Energize(d)
1 De-energize(d)
Bit 14 – Relay 2 Same as above
Bit 15 – Relay 1 Same as above
The control source must be serial for the starter to be started through Modbus. The Run/Stop bit must transition from 0 to 1 for a
start to occur. If the starter stops due to a fault, the Run/Stop bit must be set back to a 0 before another start can occur.
The fault reset bit must transition from 0 to 1 for a fault to be reset.
If any of the programmed digital inputs are programmed as Local/Remote inputs, then the local/Remote bit has no effect.
When the relays are programmed as “OFF”, the relay bits may be written in order to control the relays. When the relays are
programmed for any function other than “OFF” (Fault, Run, UTS for example), then the relay bits may be read to determine the state
of the relays.
Watts, VA, vars, and kW hour Registers:
These meter registers present 32 bit meters in two consecutive 16 bit registers. The least significant 16 bits are in the first register
followed by the most significant 16 bits in the second register.
Reading the least significant register latches data into the most significant register so that the data remains synchronized between the
two.