Dec 12, 2008 #1 K kishorekumar_ms Member level 5 Joined Nov 12, 2006 Messages 84 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,288 Activity points 1,815 pca82c251 hi frns, Please tell me 1. what happens when we apply +ve voltage to CANH (CAN High Signal) and Ground to CANL (CAN low signal) ? 2.What happens if we ground both CANH and CANL ? 3.Can u give clear idea or clear diagram about CANH and CANL to represent logic '0' and logic '1'? Thanks & Regards, M.S. Kishore Kumar.
pca82c251 hi frns, Please tell me 1. what happens when we apply +ve voltage to CANH (CAN High Signal) and Ground to CANL (CAN low signal) ? 2.What happens if we ground both CANH and CANL ? 3.Can u give clear idea or clear diagram about CANH and CANL to represent logic '0' and logic '1'? Thanks & Regards, M.S. Kishore Kumar.
Dec 16, 2008 #2 Gomez Full Member level 2 Joined Feb 12, 2002 Messages 125 Helped 10 Reputation 20 Reaction score 3 Trophy points 1,298 Activity points 1,006 The PCA82c251 is a CAN transceiver. Let's take a look in the data sheet for your three questions. **broken link removed** 1. page 5 says - no problem. Voltage V6 and V7 can be between -37V and +35V. The truth table (page 4, table 1) says thats a logical 0. 2. nothing because CAN is a differential signal transmission system, means no difference -> no signal. 3. take a look at truth table (page 4, table 1) Regards Gomez
The PCA82c251 is a CAN transceiver. Let's take a look in the data sheet for your three questions. **broken link removed** 1. page 5 says - no problem. Voltage V6 and V7 can be between -37V and +35V. The truth table (page 4, table 1) says thats a logical 0. 2. nothing because CAN is a differential signal transmission system, means no difference -> no signal. 3. take a look at truth table (page 4, table 1) Regards Gomez
Jan 26, 2009 #3 I idlebrain Advanced Member level 4 Joined Jul 20, 2005 Messages 107 Helped 20 Reputation 40 Reaction score 1 Trophy points 1,298 Activity points 2,501 May be BUSOFF