diff --git a/kx_tools/kx_coeffs.cpp b/kx_tools/kx_coeffs.cpp
index 6f78192..c6e984e 100644
--- a/kx_tools/kx_coeffs.cpp
+++ b/kx_tools/kx_coeffs.cpp
@@ -126,12 +126,14 @@ void KX_Coefficients::received(bool correct) {
 			return;
 		};
 	}
+	if (k_syns.first_index < 0 || k_syns.count < 0) return;
 	if (k_syns.first_index == 0) {
 		//cout << "first receive\n";
 		k_tmp.resize(k_syns.full_count);
 		received_cnt = 0;
 	}
 	//for (int i = 0; i < k_syns.count; i++) K.at(k_syns.first_index + i) = k_syns.coeffs[i];
+	//piCout << k_tmp.size() << k_syns.first_index << k_syns.count;
 	memcpy(k_tmp.data(k_syns.first_index), k_syns.coeffs, k_syns.count);
 	received_cnt += k_syns.count;
 	tm.reset();
@@ -168,7 +170,7 @@ void KX_Coefficients::renew() {
 
 void KX_Coefficients::tick(void * , int ) {
 	//piCout << "timer" << tm.elapsed_s();
-	if (tm.elapsed_s() < 2.) return;
+	if (tm.elapsed_s() < 10.) return;
 	if (waitingCommit) {
 		//cout << "commit timeout\n";
 		//cout << "send failed\n";
diff --git a/kx_tools/kx_protocol_x.h b/kx_tools/kx_protocol_x.h
index f87e1d6..4805a50 100644
--- a/kx_tools/kx_protocol_x.h
+++ b/kx_tools/kx_protocol_x.h
@@ -49,7 +49,7 @@ public:
 		from_buff.addr_to = ce.getValue("addr_x", 0x75);
 		from_pult = from_buff;
 		for (int i = 0; i < KX_X_PACKET_NUM; ++i)
-			to_pult.x_num[i] = -1;
+			to_pult.x_num[i] = from_pult.x_num[i] = -1;
 		packetExtractor()->setSplitMode(PIPacketExtractor::Header);
 		packetExtractor()->setHeader(PIByteArray(&from_buff, 2));
 		start();
@@ -67,7 +67,7 @@ private:
 	bool aboutSend() {
 		for (int i = 0; i < KX_X_PACKET_NUM; ++i) {
 			to_pult.x_num[i] = from_pult.x_num[i];
-			to_pult.x_data[i] = X[from_pult.x_num[i]];
+			to_pult.x_data[i] = from_pult.x_num[i] < 0 ? 0. : X[from_pult.x_num[i]];
 		}
 		to_pult.checksum = checksum_i(&to_pult, sizeof(to_pult) - 4);
 		return true;