diff --git a/src/laser_diode/laser_diode.rs b/src/laser_diode/laser_diode.rs
index 0cf08e4..7f7a42f 100644
--- a/src/laser_diode/laser_diode.rs
+++ b/src/laser_diode/laser_diode.rs
@@ -168,11 +168,11 @@ impl LdDrive{
     }
 
     pub fn set_pd_responsitivity(&mut self, responsitivity: pd_responsitivity::ResponsitivityUnit){
-        self.settings.pd_responsitivity.responsitivity = responsitivity;
+        self.settings.pd_responsitivity.set(responsitivity);
     }
 
     pub fn set_pd_dark_current(&mut self, i_dark: ElectricCurrent){
-        self.settings.pd_responsitivity.i_dark = i_dark;
+        self.settings.pd_responsitivity.set_i_dark(i_dark);
     }
 
     pub fn set_ld_power_limit(&mut self, pwr_limit: Power){
diff --git a/src/laser_diode/pd_responsitivity.rs b/src/laser_diode/pd_responsitivity.rs
index 74edebf..ee28084 100644
--- a/src/laser_diode/pd_responsitivity.rs
+++ b/src/laser_diode/pd_responsitivity.rs
@@ -14,8 +14,8 @@ pub type ResponsitivityUnit = Quantity<ISQ<N2, N1, P3, P1, Z0, Z0, Z0>, SI<f64>,
 
 #[derive(Clone, Debug, PartialEq, Tree)]
 pub struct Parameters {
-    pub responsitivity: ResponsitivityUnit,
-    pub i_dark: ElectricCurrent,
+    responsitivity: ResponsitivityUnit,
+    i_dark: ElectricCurrent,
 }
 
 impl Parameters {
@@ -28,6 +28,14 @@ impl Parameters {
         let ld_i = pwr * self.responsitivity + self.i_dark;
         ld_i
     }
+
+    pub fn set(&mut self, responsitivity: ResponsitivityUnit) {
+        self.responsitivity = responsitivity;
+    }
+
+    pub fn set_i_dark(&mut self, i_dark: ElectricCurrent) {
+        self.i_dark = i_dark;
+    }
 }
 
 impl Default for Parameters {
diff --git a/src/net/cmd_handler.rs b/src/net/cmd_handler.rs
index 782e5dc..9a457d5 100644
--- a/src/net/cmd_handler.rs
+++ b/src/net/cmd_handler.rs
@@ -1,14 +1,16 @@
-use core::{default, fmt::Debug};
+use core::{fmt::Debug, marker::PhantomData};
 use miniconf::{JsonCoreSlash, Tree};
 use serde::{Deserialize, Serialize};
 use uom::si::{
-    electric_current::{ampere, milliampere, ElectricCurrent}, 
+    electric_current::{ampere, microampere, milliampere, ElectricCurrent}, 
     electric_potential::{volt, ElectricPotential}, 
-    electrical_resistance::{ElectricalResistance, ohm}, 
-    f64::ThermodynamicTemperature, thermodynamic_temperature::degree_celsius
+    electrical_resistance::{ohm, ElectricalResistance}, 
+    power::{milliwatt, Power}, 
+    thermodynamic_temperature::{degree_celsius, ThermodynamicTemperature}
 };
-use crate::{laser_diode::laser_diode::{
-        LdDrive, StatusReport as LdStatusReport
+use crate::{laser_diode::{laser_diode::{
+        LdDrive, StatusReport as LdStatusReport},
+        pd_responsitivity::ResponsitivityUnit
     }, 
     net::net, 
     thermostat::thermostat::StatusReport as TecStatusReport
@@ -194,10 +196,24 @@ pub fn execute_cmd(buffer: &mut [u8], buffer_size: usize, mut laser: LdDrive, mu
                     }
                 }
                 Some(LdCmdEnum::SetPdResponsitivity) => {
-                    info!("Not supported Yet")
+                    match cmd.json.data_f64 {
+                        Some(val) => {
+                            laser.set_pd_responsitivity(ResponsitivityUnit {dimension: PhantomData, units: PhantomData, value: val})
+                        }
+                        None => {
+                            info!("Wrong Data type is received")
+                        }
+                    }
                 }
                 Some(LdCmdEnum::SetPdDarkCurrent) => {
-                    info!("Not supported Yet")
+                    match cmd.json.data_f64 {
+                        Some(val) => {
+                            laser.set_pd_dark_current(ElectricCurrent::new::<microampere>(val))
+                        }
+                        None => {
+                            info!("Wrong Data type is received")
+                        }
+                    }
                 }
                 Some(LdCmdEnum::SetPdILimit) => {
                     match cmd.json.data_f64 {
@@ -210,7 +226,14 @@ pub fn execute_cmd(buffer: &mut [u8], buffer_size: usize, mut laser: LdDrive, mu
                     }
                 }
                 Some(LdCmdEnum::SetLdPwrLimit) => {
-                    info!("Not supported Yet")
+                    match cmd.json.data_f64 {
+                        Some(val) => {
+                            laser.set_ld_power_limit(Power::new::<milliwatt>(val))
+                        }
+                        None => {
+                            info!("Wrong Data type is received")
+                        }
+                    }
                 }
                 Some(LdCmdEnum::ClearAlarmStatus) => {
                     laser.pd_mon_clear_alarm()