diff --git a/detector_control/DectrisSimplonClient.cpp b/detector_control/DectrisSimplonClient.cpp
index 8a9367f3..efc8d2b9 100644
--- a/detector_control/DectrisSimplonClient.cpp
+++ b/detector_control/DectrisSimplonClient.cpp
@@ -91,6 +91,12 @@ void DectrisSimplonClient::SetConfigIfDifferent(SimplonModule element, const std
         SetConfig(element, key, value);
 }
 
+void DectrisSimplonClient::SetConfigIfDifferent(SimplonModule element, const std::string &key, int64_t value) {
+    auto curr_val = GetConfig(element, key).val.get<int64_t>();
+    if (curr_val != value)
+        SetConfig(element, key, value);
+}
+
 std::string DectrisSimplonClient::GenAddr(SimplonModule element, SimplonTask task, const std::string& key) {
     std::string addr;
     switch (element) {
@@ -232,18 +238,19 @@ void DectrisSimplonClient::EndAcquisitionFinished() {
 
 void DectrisSimplonClient::StartAcquisition(const DiffractionExperiment& experiment) {
     // For DECTRIS detectors we assume frame_time == count_time
+    // but give it 100 ns resolution
     if (experiment.GetFrameCountTimeAuto())
-        SetConfig(SimplonModule::Detector, "count_time", experiment.GetFrameTime().count() / 1e6f);
+        SetConfigIfDifferent(SimplonModule::Detector, "count_time", experiment.GetFrameTime().count() / 1e6f, 1e-7);
     else
-        SetConfig(SimplonModule::Detector, "count_time", experiment.GetFrameCountTime().count() / 1e6f);
+        SetConfigIfDifferent(SimplonModule::Detector, "count_time", experiment.GetFrameCountTime().count() / 1e6f, 1e-9);
 
-    SetConfig(SimplonModule::Detector, "frame_time", experiment.GetFrameTime().count() / 1e6f);
-    SetConfig(SimplonModule::Detector, "nimages", experiment.GetFrameNumPerTrigger());
-    SetConfig(SimplonModule::Detector, "ntrigger", experiment.GetNumTriggers());
+    SetConfigIfDifferent(SimplonModule::Detector, "frame_time", experiment.GetFrameTime().count() / 1e6f, 1e-9);
+    SetConfigIfDifferent(SimplonModule::Detector, "nimages", experiment.GetFrameNumPerTrigger());
+    SetConfigIfDifferent(SimplonModule::Detector, "ntrigger", experiment.GetNumTriggers());
 
-    SetConfig(SimplonModule::Detector, "beam_center_x", experiment.GetBeamX_pxl());
-    SetConfig(SimplonModule::Detector, "beam_center_y", experiment.GetBeamY_pxl());
-    SetConfig(SimplonModule::Detector, "detector_distance", experiment.GetDetectorDistance_mm() / 1e3f);
+    SetConfigIfDifferent(SimplonModule::Detector, "beam_center_x", experiment.GetBeamX_pxl(), 1e-6);
+    SetConfigIfDifferent(SimplonModule::Detector, "beam_center_y", experiment.GetBeamY_pxl(), 1e-6);
+    SetConfigIfDifferent(SimplonModule::Detector, "detector_distance", experiment.GetDetectorDistance_mm() / 1e3f, 1e-9);
 
     SendDetectorCommand(SimplonDetectorCommand::Arm);
 }
diff --git a/detector_control/DectrisSimplonClient.h b/detector_control/DectrisSimplonClient.h
index 51f38d97..4cd35887 100644
--- a/detector_control/DectrisSimplonClient.h
+++ b/detector_control/DectrisSimplonClient.h
@@ -40,6 +40,7 @@ class DectrisSimplonClient {
     nlohmann::json GetStatus(SimplonModule element, const std::string &key);
     void SetConfig(SimplonModule element, const std::string &key, const nlohmann::json &value);
     void SetConfigIfDifferent(SimplonModule element, const std::string &key, float value, float tolerance);
+    void SetConfigIfDifferent(SimplonModule element, const std::string &key, int64_t value);
 
     void SendDetectorCommand(SimplonDetectorCommand cmd);
 public: