diff --git a/src/dbg.rs b/src/dbg.rs
index b106f64..20656f9 100644
--- a/src/dbg.rs
+++ b/src/dbg.rs
@@ -11,3 +11,13 @@ pub fn dbg_chn(chn: &str) -> bool {
         false
     }
 }
+
+pub fn binwrite2_enable(chn: &str) -> bool {
+    let chns = [
+        // "ARS05-RAMP-0230:PLC-COUNT-MON",
+        // "ARS09-R3HC-0150:TUN1-MOTOR-TEMP",
+        // "ARS09-R3HC-0150:HOM27-ATT-TEMP",
+        // "ARIDI-BLM01:LOSS7",
+    ];
+    chns.contains(&chn)
+}
diff --git a/src/msp.rs b/src/msp.rs
index c097a00..2a72b47 100644
--- a/src/msp.rs
+++ b/src/msp.rs
@@ -32,16 +32,35 @@ impl PrebinnedPartitioning {
 
     pub fn msp_div(&self) -> DtMs {
         use PrebinnedPartitioning::*;
-        match self {
-            Sec1 => DtMs::from_ms_u64(1000 * 60 * 10),
-            Sec10 => DtMs::from_ms_u64(1000 * 60 * 60 * 2),
-            Min1 => DtMs::from_ms_u64(1000 * 60 * 60 * 8),
-            Min10 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 4),
-            Hour1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 28),
-            Day1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 400),
+        if true {
+            match self {
+                Sec1 => DtMs::from_ms_u64(1000 * 60 * 20),
+                Sec10 => DtMs::from_ms_u64(1000 * 60 * 60 * 2),
+                Min1 => DtMs::from_ms_u64(1000 * 60 * 60 * 12),
+                Min10 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 7),
+                Hour1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 40),
+                Day1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 800),
+            }
+        } else {
+            match self {
+                Sec1 => DtMs::from_ms_u64(1000 * 60 * 10),
+                Sec10 => DtMs::from_ms_u64(1000 * 60 * 60 * 2),
+                Min1 => DtMs::from_ms_u64(1000 * 60 * 60 * 8),
+                Min10 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 4),
+                Hour1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 28),
+                Day1 => DtMs::from_ms_u64(1000 * 60 * 60 * 24 * 400),
+            }
         }
     }
 
+    pub fn quo_rem(&self, val: DtMs) -> (u64, u32) {
+        let valms = val.ms();
+        let divms = self.msp_div().ms();
+        let quo = valms / divms;
+        let rem = (valms - divms * quo) / self.bin_len().ms();
+        (quo, rem as u32)
+    }
+
     pub fn off_max(&self) -> u32 {
         self.msp_div().ms() as u32 / self.bin_len().ms() as u32
     }
@@ -49,6 +68,18 @@ impl PrebinnedPartitioning {
     pub fn clamp_off(&self, off: u32) -> u32 {
         self.off_max().min(off)
     }
+
+    pub fn uses_index_hour1(&self) -> bool {
+        use PrebinnedPartitioning::*;
+        match self {
+            Sec1 => true,
+            Sec10 => true,
+            Min1 => true,
+            Min10 => false,
+            Hour1 => false,
+            Day1 => false,
+        }
+    }
 }
 
 impl TryFrom<DtMs> for PrebinnedPartitioning {