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9 CREATING A HARDWARE LOGIC
9.1 Main Blocks in the Hardware Logic Outline Window
• Parameters of "Data Frame Setting"
*1 Set values so that the total of set values for "Multi Turn Data Length" and "Single Turn Data Length" is equal to or smaller than the value
set for "Data Frame Length". Note that the parity bit length is not included in these values.
*2 A value larger than the maximum value representable by "Single Turn Data Length" cannot be set for "Encoder Resolution".
*3 When using the encoder with the encoder type being multi turn and the input data type being gray code, make sure that its resolution of
single turn data is equal to 2
n
.
Variable name
Data type
Valid range
Default value
Description
Input Data Type
Word
Pure binary
Gray code
Pure binary
Set the type of input data from the SSI encoder.
• Pure binary
• Gray code
Data Frame Length
Word
1 to 32 (bit)
1 (bit)
Specify the effective bit length of a received data frame
from the SSI encoder.
Multi Turn Data Length
Word
0 to 32 (bit)
0 (bit)
Specify the effective bit length of multi turn data.
When "Encoder Type" is set to "Multi Turn", this setting
is enabled.
When this setting is disabled, a default value is set.
Multi Turn Start Bit
Word
0 to 31 (bit)
0 (bit)
Specify the start bit position of multi turn data.
When "Encoder Type" is set to "Multi Turn", this setting
is enabled.
When this setting is disabled, a default value is set.
Encoder Resolution
Word
0 to 4294967295
0
Set the encoder resolution to use the encoder with its
resolution of single turn data not equal to 2
n
(n: single
turn data length).
When the resolution is equal to 2
n
, the setting change
from the initial value (0) is not required. (When 0 is set,
the resolution is regarded as equal to 2
n
.)
When "Encoder Type" is set to "Multi Turn" and "Input
Data Type" is set to "Gray code", this setting is
disabled. When this setting is disabled, a default value
is set.
Single Turn Data Length
Word
0 to 32 (bit)
0 (bit)
Specify the effective bit length of single turn data.
Single Turn Start Bit
Word
0 to 31 (bit)
0 (bit)
Specify the start bit position of single turn data.
When "Encoder Type" is set to "Single Turn", this
setting is enabled.
When this setting is disabled, a default value is set.
Parity
Word
None
Even
Odd
None
Set whether to perform the parity check or the type of
the parity check (even or odd) according to the SSI
encoder to be connected.
• No parity check: None
• Even parity: Even
• Odd parity: Odd
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