diff --git a/TSCP/src/MSCP/CFM/CFM_Net.c b/TSCP/src/MSCP/CFM/CFM_Net.c
index b9b90d7..41bb259 100644
--- a/TSCP/src/MSCP/CFM/CFM_Net.c
+++ b/TSCP/src/MSCP/CFM/CFM_Net.c
@@ -4812,7 +4812,7 @@ static CM_THREAD_FUNC_T t_OutNetHeartSendThread(IN CM_Thread_Arg_Struct_T* arg)
 	{
 		CM_Sem_Wait(pCtrl->m_Start);
 		state_2x2 = SFM_2x2_GetLocal2x2State();
-		CM_Sleep(cyc_time - 30u);
+		CM_Sleep(cyc_time - CFM_HEART_WAITE);
 		/*- 发送主线程热备状态的外网心跳*/
 		(void)CFM_TxOutnetHeart(state_2x2);
 	}