Rockwell Automation 1395 Multi-Comm Hardware/Software - Manual (Page 60)

Chapter 3
Configuration & Interfacing
3–49
Clear Faults
This function requests the Drive to clear any soft or warning faults that
have occurred. It also clears the fault buffer. Hard faults cannot be cleared
using the command.
PLC Block Transfer Data –
BTW Instruction Length: 4
BTR Instruction Length: 4
PLC DH+ Data –
Write Read
Size In Elements: 4 4
Processor Type: PLC–5 PLC–5
Destination Address: N15:0–3 N15:0–3
Message Structure –
Message Header Information:
Word 1: 0
Word 2: 0
Function Code, Word 3: 1795
Write Message Length, Word 4: 8 bytes
WORD
BTW BTR
1
2
3
4
NOTE: Word 4 of the BTR instruction is broken down into
two bytes. The High byte contains the status bits
per table 3–H. The low byte contains the Drive
message length in bytes.
0
0
1795
8
0
0
1795
8
Message Operation – This function requests the Drive to clear any soft or
warning faults that have occurred. It also clears the fault buffer. Hard
faults cannot be cleared using this command.
IMPORTANT: If the Drive is running (i.e. the DC loop contactor is
picked up), the CLEAR FAULTS command will be ignored.
This function requires the message header only for both the BTW and BTR
instructions.