guys

src/main.rs

@@ -1,7 +1,82 @@
-use libmodbus_rs::{Modbus, ModbusRTU};
+use libmodbus_rs::{Modbus, ModbusClient, ModbusRTU};
 
 const DEVICE_ID: u8 = 0x01;
 
+struct Offsets {}
+
+impl Offsets {
+    // scaling values
+    const V_PU_HI: u16 = 0x0000;
+    const V_PU_LO: u16 = 0x0001;
+    const I_PU_HI: u16 = 0x0002;
+    const I_PU_LO: u16 = 0x0003;
+    const VER_SW: u16 = 0x0004;
+    // filtered ADC
+    const ADC_VB_F_MED: u16 = 0x0018;
+    const ADC_VBTERM_F: u16 = 0x0019;
+    const ADC_VBS_F: u16 = 0x001A;
+    const ADC_VA_F: u16 = 0x001B;
+    const ADC_IB_F_SHADOW: u16 = 0x001C;
+    const ADC_IA_F_SHADOW: u16 = 0x001D;
+    const ADC_P12_F: u16 = 0x001E;
+    const ADC_P3_F: u16 = 0x001F;
+    const ADC_PMETER_F: u16 = 0x0020;
+    const ADC_P18_F: u16 = 0x0021;
+    const ADC_V_REF: u16 = 0x0022;
+    // temperatures
+    const T_HS: u16 = 0x0023;
+    const T_RTS: u16 = 0x0024;
+    const T_BATT: u16 = 0x0025;
+    // status
+    const ADC_VB_F_1M: u16 = 0x0026;
+    const ADC_IB_F_1M: u16 = 0x0027;
+    const VB_MIN: u16 = 0x0028;
+    const VB_MAX: u16 = 0x0029;
+    const HOURMETER_HI: u16 = 0x002A;
+    const HOURMETER_LO: u16 = 0x002B;
+    const FAULT_ALL: u16 = 0x002C;
+    const ALARM_HI: u16 = 0x002E;
+    const ALARM_LO: u16 = 0x002F;
+    const DIP_ALL: u16 = 0x0030;
+    const LED_STATE: u16 = 0x0031;
+    // charger
+    const CHARGE_STATE: u16 = 0x0032;
+    const VB_REF: u16 = 0x0033;
+    const AHC_R_HI: u16 = 0x0034;
+    const AHC_R_LO: u16 = 0x0035;
+    const AHC_T_HI: u16 = 0x0036;
+    const AHC_T_LO: u16 = 0x0037;
+    const KWHC_R: u16 = 0x0038;
+    const KWHC_T: u16 = 0x0039;
+    // MPPT
+    const POWER_OUT_SHADOW: u16 = 0x003A;
+    const POWER_IN_SHADOW: u16 = 0x003B;
+    const SWEEP_PIN_MAX: u16 = 0x003C;
+    const SWEEP_VMP: u16 = 0x003D;
+    const SWEEP_VOC: u16 = 0x003E;
+    // logger - today's values
+    const VB_MIN_DAILY: u16 = 0x0040;
+    const VB_MAX_DAILY: u16 = 0x0041;
+    const VA_MAX_DAILY: u16 = 0x0042;
+    const AHC_DAILY: u16 = 0x0043;
+    const WHC_DAILY: u16 = 0x0044;
+    const FLAGS_DAILY: u16 = 0x0045;
+    const POUT_MAX_DAILY: u16 = 0x0046;
+    const TB_MIN_DAILY: u16 = 0x0047;
+    const TB_MAX_DAILY: u16 = 0x0048;
+    const FAULT_DAILY: u16 = 0x0049;
+    const ALARM_DAILY_HI: u16 = 0x004B;
+    const ALARM_DAILY_LO: u16 = 0x004C;
+    const TIME_AB_DAILY: u16 = 0x004D;
+    const TIME_EQ_DAILY: u16 = 0x004E;
+    const FIME_FL_DAILY: u16 = 0x004F;
+    // manual control
+    const IB_REF_SLAVE: u16 = 0x0058;
+    const VB_REF_SLAVE: u16 = 0x0059;
+    const VA_REF_FIXED: u16 = 0x005A;
+    const VA_REF_FIXED_PCT: u16 = 0x005B;
+}
+
 fn main() {
     println!("Hello, world!");
     let device = "/dev/ttyUSB0";
@@ -9,10 +84,28 @@ fn main() {
     let parity = 'N';
     let data_bit = 8;
     let stop_bit = 2;
-    let modbus = Modbus::new_rtu(device, baud, parity, data_bit, stop_bit)
+    let mut modbus = Modbus::new_rtu(device, baud, parity, data_bit, stop_bit)
         .expect("could not create modbus device");
     modbus
         .set_slave(DEVICE_ID)
         .expect("could not set client device");
     modbus.connect().expect("could not connect");
+    let mut data: [u16; 5] = [0; 5];
+    modbus
+        .read_registers(0x0000, 5, &mut data)
+        .expect("couldnt read registers");
+    println!("voltage scaling (whole term): {}", get_floating(data[0]));
+    println!(
+        "voltage scaling (fractional term): {}",
+        get_floating(data[1])
+    );
+    println!("current scaling (whole term): {}", get_floating(data[3]));
+    println!(
+        "current scaling (fractional term): {}",
+        get_floating(data[4])
+    );
+}
+
+fn get_floating(num: u16) -> f32 {
+    num as f32 * 100. / 32768.
 }