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7 SSI Input Units
7 - 42
NX-series Position Interface Units User’s Manual (W524)
This section provides setting examples for four different encoder formats.
Single-turn 13-bit Data
Note S0, S1, etc., are the data bits that give the absolute position during a single rotation.
Multi-turn 25-bit, Multi-turn 12-bit, and Single-turn 13-bit Data
Multi-turn Data Start
Bit
*3
0 to 31 (bit)
0
Set the start bit position for multi-turn data.
Multi-turn Data
Length
*3*5
0 to 32 (bits)
12
Set the data length for multi-turn data.
Status Data Start Bit
*4
0 to 31 (bit)
0
Set the start bit position for status data.
Status Data
Length
*4*5
0 to 32 (bits)
0
Set the data length for status data.
Encoder Resolution
*6
0 to 4294967295
0
Set the single-turn resolution.
If this parameter is set to 0, the resolution is
the maximum setting value for single-turn
data + 1.
*1. Set the time that is required for the SSI encoder to output data again. This time depends on the SSI encoder.
Set it according to the specifications of the SSI encoder that is connected.
*2. If the sum of the values set for the Single-turn Data Start Bit and the Single-turn Data Length parameters is
greater than the Valid Data Length parameter, SSI communications are disabled and an SSI Data Setting Error
event occurs.
*3. If the sum of the values set for the Multi-turn Data Start Bit and the Multi-turn Data Length parameters is greater
than the Valid Data Length parameter, SSI communications are disabled and an SSI Data Setting Error event
occurs.
*4. If the sum of the values set for the Status Data Start Bit and the Status Data Length parameters is greater than
the Valid Data Length parameter, SSI communications are disabled and the SSI Data Setting Error event oc-
curs.
*5. If the sum of the values set for the Multi-turn Data Length, Single-turn Data Length, and Status Data Length
parameters is greater than 32, SSI communications are disabled and an SSI Data Setting Error event occurs.
*6. If the resolution is greater than the range represented by the value set for the Single-turn Data Length param-
eter, SSI communications are disabled and an SSI Data Setting Error event occurs.
Encoder Setting Examples
Received frame bit positions
0: MSB
1
2
3
4
5
6
7
8
9
10
11
12
S12
S11
S10 S9
S8
S7
S6
S5
S4
S3
S2
S1
S0
Valid
data
length
Single-turn data
start bit
Single-turn
data length
Multi-turn data
start bit
Multi-turn
data
length
Status data start
bit
Status
data
length
13
0
13
0
0
0
0
Received frame bit positions
0: MSB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
M11
M10
M9
M8
M7
M6
M5
M4
M3
M2
M1
M0
S12 S11
S10 S9
S8
Received frame bit positions
17
18
19
20
21
22
23
24
S7
S6
S5
S4
S3
S2
S1
S0
Parameter name
Setting
Default
Remarks
Содержание NX-EC0112
Страница 13: ...11 Manual Structure NX series Position Interface Units User s Manual W524...
Страница 34: ...Revision History 32 NX series Position Interface Units User s Manual W524...
Страница 36: ...Sections in this Manual 34 NX series Position Interface Units User s Manual W524...
Страница 70: ...2 Specifications and Application Procedures 2 14 NX series Position Interface Units User s Manual W524...
Страница 78: ...3 Part Names and Functions 3 8 NX series Position Interface Units User s Manual W524...
Страница 108: ...4 Installation and Wiring 4 30 NX series Position Interface Units User s Manual W524 Unit...
Страница 114: ...4 Installation and Wiring 4 36 NX series Position Interface Units User s Manual W524...
Страница 126: ...5 I O Refreshing Methods 5 12 NX series Position Interface Units User s Manual W524...
Страница 340: ...8 Pulse Output Units 8 76 NX series Position Interface Units User s Manual W524...
Страница 462: ...Appendices A 74 NX series Position Interface Units User s Manual W524...
Страница 463: ...I 1 I NX series Position Interface Units User s Manual W524 Index...
Страница 466: ...I 4 NX series Position Interface Units User s Manual W524 Index...