mirror of
https://github.com/brocktice/tristar-python-modbus.git
synced 2025-05-15 14:20:12 -07:00
123 lines
4.1 KiB
Python
Executable File
123 lines
4.1 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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# This is modified for the non-MPPT tri-stars without built-in network monitoring. It has different indices and different available data.
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import sys
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import re
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import time
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counter = 0
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script = sys.argv[0]
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host = re.sub(r".*tristar_monitoring_",'',script)
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if len(sys.argv) == 2:
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if sys.argv[1] == "config":
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# print "host_name %s" % host
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print "graph_category power"
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print "graph_title Solar Charge Controller Info"
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print "graph_vlabel A bit of all (V, A, C)"
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print "vPanel.label panel potential (V)"
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print "vPanel.max 80"
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print "vBattTerm.label battery potential at terminals (V)"
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print "vBattTerm.max 32"
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print "vBattTerm.warning 25:32"
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print "vBattTerm.critical 24:33"
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# print "vBattSense.label battery potential sensing (V)"
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# print "vBattSense.max 32"
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print "hsTemp.label heat sink temperature (C)"
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print "hsTemp.max 120"
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print "hsTemp.warning :60"
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print "hsTemp.critical :80"
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# print "battTemp.label battery temperature (C)"
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# print "battTemp.max 120"
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# print "battTemp.warning :80"
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# print "battTemp.critical :100"
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print "aPanel.label charge current (A)"
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print "aPanel.max 20"
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# print "aPanel.warning :15"
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# print "aPanel.critical :19"
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# print "aBatt.label battery current (A)"
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# print "aBatt.max 20"
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# print "aBatt.warning :15"
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# print "aBatt.critical :19"
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exit(0)
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# import the server implementation
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from pymodbus.client.sync import ModbusSerialClient 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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client = ModbusClient(method='rtu',port='/dev/ttyUSB0', baudrate=9600, timeout=1)
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client.connect()
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log.debug(client)
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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(0,37,1)
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if rr == None:
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client.close()
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log.error("couldn't connect")
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exit(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 = 96.667 * 2**(-15)
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i_scale = 66.667 * 2**(-15)
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#p_scale = V_PU * I_PU * 2**(-17)
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array_scale = 139.15 * 2**(-15)
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# battery sense voltage, filtered
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battsV = rr.registers[8] * v_scale
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#battsV = ( rr.registers[8] * 96.667 ) / 32768
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#battsSensedV = rr.registers[26] * v_scale
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battsI = rr.registers[12] * i_scale * 4.75
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arrayV = rr.registers[10] * array_scale
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arrayI = rr.registers[11] * i_scale
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#statenum = rr.registers[50]
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hsTemp = rr.registers[14]
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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 "vBattTerm.value %.2f" % battsV
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#print "vBattSense.value %.2f" % battsSensedV
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#print "aBatt.value %.2f" % battsI
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#print "battery watts: %.2f" % (battsV*battsI)
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print "vPanel.value %.2f" % arrayV
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print "aPanel.value %.2f" % arrayI
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#print "array watts: %.2f" % (arrayV*arrayI)
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print "hsTemp.value %.2f" % hsTemp
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#print "battTemp.value %.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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