Lenze EPM-T110 - Fig. 12.5-2 Data Input Output of SSI Interface; Input Data Output Data

Parameterising SSI interface
Input data / output data
12
Parameter setting
12.5
12.5.2
l
12.5-3
EDSPM-TXXX-3.0-04/2004
12.5.2 Input data / output data
epm-t172
Fig. 12.5-2 Data input /output of SSI interface
For data input / output, four bytes are available which are transmitted (Rx PDO) or
output (Tx PDO) by PDOs.


 Note!
Input and output data get lost when the mains supply is switched
off/on; they are not stored!
The input data, which serve to control the outputs (I/O.0 and I/O.1) depending on
the encoder value, are located in the first Rx PDO.
Byte Assignment
0 Control Bits 0..1
Setpoint selection
0
C
o
n
t
r
o
l
B
i
t
s
0
.
.
1
00: No setpoint selection
01: Setpoint selection for output I/O.0
10: Setpoint selection for output I/O.1
11: Setpoint selection for outputs I/O.0 and I/O.1
Bit 2 reserved
Bit 3
Condition for output
B
i
t
3
0: If SSI encoder value is higher than setpoint
1: If SSI encoder value i s l ower than setpoint
Bits 4..7 reserved
1 Comparison value (HIGH byte)
Bits 0 ... 7 Binar y code or Gray code, depending on the parameter
2 Comparison value (MID byte)
B
i
t
s
0
.
.
.
7
B
i
n
a
r
y
c
o
d
e
o
r
G
r
a
y
c
o
d
e
,
d
e
p
e
n
d
i
n
g
o
n
t
h
e
p
a
r
a
m
e
t
e
r
setting
3 Comparison value (LOW byte)
g
The output data supplied by your encoder is located in the first Tx PDO:
Byte Assignment
0 Status
Bit 0 Status I/O.0
0
S
t
a
t
u
s
Bit 1 Status I/O.1
Bits 2 ... 7 reserved
1 SSI encoder value (HIGH byte)
Bits 0 ... 7 Binar y code or Gray code, depending on the parameter
2 SSI encoder value (MID byte)
B
i
t
s
0
.
.
.
7
B
i
n
a
r
y
c
o
d
e
o
r
G
r
a
y
c
o
d
e
,
d
e
p
e
n
d
i
n
g
o
n
t
h
e
p
a
r
a
m
e
t
e
r
setting
3 SSI encoder value (LOW byte)
g
Input data
Output data
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