diff --git a/src/adapter/driver/driver.c b/src/adapter/driver/driver.c
index 7f70ea47..0a5fd1a9 100644
--- a/src/adapter/driver/driver.c
+++ b/src/adapter/driver/driver.c
@@ -253,6 +253,11 @@ void neu_adapter_driver_write_tag(neu_adapter_driver_t *driver,
             free(tag);
             return;
         }
+        if (tag->type == NEU_TYPE_FLOAT || tag->type == NEU_TYPE_DOUBLE) {
+            if (cmd->value.type == NEU_TYPE_INT64) {
+                cmd->value.value.d64 = (double) cmd->value.value.u64;
+            }
+        }
         switch (tag->type) {
         case NEU_TYPE_BOOL:
         case NEU_TYPE_STRING: