A Murrelektronik Company
27
Counter - Roll Over and Output Enable
Set Point set, Reset off, Roll Over on, Output Enable on
1
2
8
7
6
5
4
3
0
0
6
6
6
5
4
3
2
1
0
0
0
6
6
6
6
5
4
3
2
1
6
0
3
3
3
3
3
3
3
3
3
3
0
3
3
3
3
3
3
3
3
3
3
3
Counter Input
Counter On
Counter
Set Point
Output Command
Output Status
ENCODER OPERATION
• Input 7A & 8A are used for encoder mode. Channel A of the encoder is connected to Input 7A & Channel B is connected to Input 8A.
• When the encoder channels are correctly connected, as shown above, firmware takes care of incrementing or decrementing
the count.
• The functions that work when using encoder mode are tied to counter 7A, the on/off & reset are the only commands that work at
this time.
PGN
65307 (0xFF1B)
Source Address
224 (0xE0)
PDU Format
255 (0xFF)
PDU Specific
27 (0x1B)
Built Message
(0x
18FF1BE0
)
Name
Data Type
Byte
Bits
Description
Hertz_Count Input 7A
Word
1
Low Byte
Input 7A,
Hertz is used when the input is configured as a frequency input,
Count is used when the input is configured as a high speed counter
2
High Byte
Duty Cycle_ SP Input 7A
Word
3
Low Byte
Input 7A,
Duty Cycle is used when the input is configured as a frequency input,
Set Point is used when the input is configured as a high speed counter
4
High Byte
Hertz_Count Input 8A
Word
5
Low Byte
Input 8A,
Hertz is used when the input is configured as a frequency input,
Count is used when the input is configured as a high speed counter
6
High Byte
Duty Cycle_SP Input 8A
Word
7
Low Byte
Input 8A,
Duty Cycle is used when the input is configured as a frequency input,
Set Point is used when the input is configured as a high speed counter
8
High Byte
2. The Count and Counter Set Point are shown in the message below/Encoder
In Encoder mode, bytes 1 & 2 are the low word and bytes 3 & 4 are the high word to display a 32 bit value of the encoder count,
32 bit signed maximum positive count is 2,147,483,647.
