return {
    on = {
        devices = {'pzem1', 'pzem2'}
    },
    logging = {
        level = domoticz.LOG_ERROR
    },
    execute = function(dz, item)

        if (item.changed) then
            v1, c1, p1, e1 = dz.devices('pzem1')._state:match("([^;]+);([^;]+);([^;]+);([^;]+)")
            voltage1 = tonumber(v1 or 0)
            current1 = tonumber(c1 or 0)
            power1   = tonumber(p1 or 0)
            energy1  = tonumber(e1 or 0)
               if (voltage1 > 0) then
                   dz.devices(98).updateVoltage(voltage1)
               end
               if ((current1 > 0 and power1 > 0) or (current1 > 0)) then
                    dz.devices(101).updateCurrent(current1)
               end
               if (power1 == 0) then
                   dz.devices(104).updateElectricity(0, energy1)
               else
                   dz.devices(104).updateElectricity(power1, energy1)
               end
            v2, c2, p2, e2 = dz.devices('pzem2')._state:match("([^;]+);([^;]+);([^;]+);([^;]+)")
            voltage2 = tonumber(v2 or 0)
            current2 = tonumber(c2 or 0)
            power2   = tonumber(p2 or 0)
            energy2  = tonumber(e2 or 0)
               if (voltage2 > 0) then
                   dz.devices(99).updateVoltage(voltage2)
               end
               if ((current2 > 0 and power2 > 0) or (current2 > 0)) then
                    dz.devices(102).updateCurrent(current2)
               end
               if (power2 == 0) then
                   dz.devices(105).updateElectricity(0, energy2)
               else
                   dz.devices(105).updateElectricity(power2, energy2)
               end
            dz.devices(100).updateVoltage((voltage1 + voltage2) / 2)
            dz.devices(103).updateCurrent(current1 + current2)
            dz.devices(106).updateElectricity((power1 + power2), (energy1 + energy2))
        end
    end
}