mirror of
https://github.com/brocktice/tristar-python-modbus.git
synced 2025-05-15 14:20:12 -07:00
89 lines
2.7 KiB
Python
Executable File
89 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Based on Morningstar documentation here
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# http://www.morningstarcorp.com/wp-content/uploads/2014/02/TSMPPT.APP_.Modbus.EN_.10.2.pdf
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# and heavily modified version of the script here
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# http://www.fieldlines.com/index.php?topic=147639.0
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import time
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counter = 0
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import sys
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if len(sys.argv) <= 1:
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print "Usage: read_registers.py <ip address 1> [ip address 2] ..."
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exit(1)
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hosts = sys.argv[1:]
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# import the server implementation
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from pymodbus.client.sync import ModbusTcpClient as ModbusClient
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# configure the client logging
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import logging
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logging.basicConfig()
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log = logging.getLogger('./modbus.error')
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log.setLevel(logging.ERROR)
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for host in hosts:
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print "Host %s" % host
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client = ModbusClient(host,502)
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client.connect()
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# Define the State list
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state = ['Start', 'Night Check', 'Disconnected', 'Night', 'Fault!', 'MPPT', 'Absorption', 'FloatCharge', 'Equalizing', 'Slave']
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# read registers. Start at 0 for convenience
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rr = client.read_holding_registers(0,80,1)
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# for all indexes, subtract 1 from what's in the manual
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V_PU_hi = rr.registers[0]
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V_PU_lo = rr.registers[1]
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I_PU_hi = rr.registers[2]
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I_PU_lo = rr.registers[3]
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V_PU = float(V_PU_hi) + float(V_PU_lo)
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I_PU = float(I_PU_hi) + float(I_PU_lo)
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v_scale = V_PU * 2**(-15)
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i_scale = I_PU * 2**(-15)
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p_scale = V_PU * I_PU * 2**(-17)
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# battery sense voltage, filtered
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battsV = rr.registers[24] * v_scale
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battsSensedV = rr.registers[26] * v_scale
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battsI = rr.registers[28] * i_scale
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arrayV = rr.registers[27] * v_scale
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arrayI = rr.registers[29] * i_scale
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statenum = rr.registers[50]
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hsTemp = rr.registers[35]
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rtsTemp = rr.registers[36]
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outPower = rr.registers[58] * p_scale
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inPower = rr.registers[59] * p_scale
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minVb_daily = rr.registers[64] * v_scale
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maxVb_daily = rr.registers[65] * v_scale
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minTb_daily = rr.registers[71]
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maxTb_daily = rr.registers[72]
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dipswitches = bin(rr.registers[48])[::-1][:-2].zfill(8)
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led_state = rr.registers
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print "battery voltage: %.2f" % battsV
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print "battery sensing: %.2f" % battsSensedV
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print "battery current: %.2f" % battsI
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print "battery watts: %.2f" % (battsV*battsI)
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print "array voltage: %.2f" % arrayV
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print "array current: %.2f" % arrayI
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print "array watts: %.2f" % (arrayV*arrayI)
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print "heat sink temp: %.2f" % hsTemp
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print "battery temp: %.2f" % rtsTemp
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print "state: %s" % state[statenum]
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print "out power: %0.2f" % outPower
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print "in Power: %0.2f" % inPower
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print "min Vb daily: %0.2f" % minVb_daily
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print "max Vb daily: %0.2f" % maxVb_daily
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print "min Tb daily: %0.2f" % minTb_daily
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print "max Tb daily: %0.2f" % maxTb_daily
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print "dipswitches: %s" % dipswitches
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print "dipswitches: 12345678"
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print ""
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client.close()
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