{
    "rtype":  0,   // 0 = modbus, 1 = http/json

    "name": "SMA STP battery Test1",   // as displayed in the config dialog
    "manufacturer": "SMA",
    "dev_type": "sma_stp_test1",   // will be prefixed by "meter_"

    // modbus parameters
    "rtu": {
        "silence_period": 50,    // msec
        "silence_same_slave": false,
        "retries": 4,
        "rcv_timeout": 120       // msec
    },
    "modbus_read": 3,            // function code to read registers
    "modbus_read_max_registers": 96, 
    "modbus_write": 16,          // function code to write register(s)
    "modbus_write_max_registers": 64,
    
    "reserved": [0x7fffffff, 0x80000000, 0xffffffff],

    // values used to build the model string
    "type_designation": {
        "fixed": "STP Test"
    },
    "version": {
        "fixed": "1.0"
    },
    "firmware_version": {
        "address": 30059,
        "type": "int32",
        "length": 3,
    },
    "serial": {
        "address": 30005,
        "type": "int32",
    },
    
    // instantaneous values
    "cha_w": {
       "address": 31393,
       "type": "int32"      
    },
    "discha_w": {
       "address": 31395,
       "type": "int32"      
    },
    "power_w": {
        "expr": "cha_w-discha_w"
    },
    "soc": {
        "address": 30845,
        "type": "int32"
    },
    "discharge_power_w_inv": {
        "expr": "discharge_power_w*-1"
   },     
    "batt_steuer_akt": {
        "expr": "exists(charge_power_w) || exists(discharge_power_w)"
    },
    
 "outputs": [
       {   // Batteriesteuerung aktivieren, Modbusadresse 40151 mit Wert 802 beschreiben, Das Register wird periodisch alle 500sek beschrieben
       "address": "#500#${if batt_steuer_akt == 1)`http://localhost/cnf?cmd=modbus_set&addr=${address}&func=6&id=${id}&reg=40151&val=802&type=d`}"
        },
       {   // Batteriesteuerung deaktiviren, Modbusadresse 40151 mit Wert 803 beschreiben
       "address": "${if batt_steuer_akt == 0)`http://localhost/cnf?cmd=modbus_set&addr=${address}&func=6&id=${id}&reg=40151&val=803&type=d`}"
        },
        {   // Ladeleistung in Watt Modbusadresse 40149
        "address": "${if exists(charge_power_w)`http://localhost/cnf?cmd=modbus_set&addr=${address}&func=6&id=${id}&reg=40149&val=${charge_power_w}&type=d`}"
        },
        {   // Entladeleistung in Watt Modbusadresse 40149
        "address": "${if exists(discharge_power_w_inv)`http://localhost/cnf?cmd=modbus_set&addr=${address}&func=6&id=${id}&reg=40149&val=${discharge_power_w_inv}&type=d`}"
        } 
    ] 
 
}