Leuze electronic MSI 400 Series Manual page 20

Bit 7
Byte 5 I15/I16
dual-
channel
state
0: Error
1: ok or
not used
Byte 6 0: Inver-
sion error
I14 vs. I16
1: OK or
not used
Byte 7 0: I16
Stuck at
low
1: OK or
not used
Byte 8 Q4
Stuck at
low
Byte 9 IQ4 (Out-
put)
Stuck at
low
Module state bits of the I/O modules MSI-EM-I8 and MSI-EM-IO84
The module state bits have the following meaning, if not otherwise indicated:
0 = error
1 = no error
Tab. 3.7: Meaning of the module state bits of the safe I/O modules MSI-EM-I8 and MSI-EM-IO84
Bit 7
Byte 0 Reserved Collective
Byte 1 Module
state of
output
data
Byte 2 Test im-
pulse
compar-
ison I8 vs.
X2
Leuze electronic
Bit 6 Bit 5
I13/I14 I11/I12
dual- dual-
channel channel
state state
0: Error 0: Error
1: ok or 1: ok or
not used not used
0: Inver- 0: Fre-
sion error quency
I13 vs. I15 difference
I14 vs. I16
1: OK or
not used 1: OK or
not used
0: I16 0: I15
Stuck at Stuck at
high low
1: OK or 1: OK or
not used not used
Q4 Q3
Stuck at Stuck at
high low
IQ4 (Out- IQ3 (Out-
put) put)
Stuck at Stuck at
high low
Bit 6 Bit 5
Power
error fast supply for
shut-off Q1 .. Q4
Module Reserved Reserved Two-
state of
input data
Test im- Test im-
pulse pulse
compar- compar-
ison I7 vs. ison I6 vs.
X1 X2
Bit 4 Bit 3
I9/I10 I7/I8
dual- dual-
channel channel
state state
0: Error 0: Error
1: ok or 1: ok or
not used not used
0: Fre- 0: Phase
quency difference
difference I14 vs. I16
I13 vs. I15 too low
1: OK or 1: OK or
not used not used
0: I15 0: I14
Stuck at Stuck at
high low
1: OK or 1: OK or
not used not used
Q3 Q2
Stuck at Stuck at
high low
IQ3 (Out- IQ2 (Out-
put) put)
Stuck at Stuck at
high low
Bit 4 Bit 3
Configur- Not used
ation of (error his-
this mod- tory flag)
ule is
valid.
channel
evaluation
of input
I7–I8
Test im- Test im-
pulse pulse
compar- compar-
ison I5 vs. ison I4 vs.
X1 X2
MSI 400
Product description
Bit 2 Bit 1
I5/I6 I3/I4
dual- dual-
channel channel
state state
0: Error 0: Error
1: ok or 1: ok or
not used not used
0: Phase IQ3/IQ4
difference dual-
I13 vs. I15 channel
too low state
0: Error
1: OK or
1: ok or
not used
not used
0: I14 0: I13
Stuck at Stuck at
high low
1: OK or 1: OK or
not used not used
Q2 Q1
Stuck at Stuck at
high low
IQ2 (Out- IQ1 (Out-
put) put)
Stuck at Stuck at
high low
Bit 2 Bit 1
External Internal
module module
state state
Two- Two-
channel channel
evaluation evaluation
of input of input
I5–I6 I3–I4
Test im- Test im-
pulse pulse
compar- compar-
ison I3 vs. ison I2 vs.
X1 X2
Bit 0
I1/I2
dual-
channel
state
0: Error
1: ok or
not used
IQ1/IQ2
dual-
channel
state
0: Error
1: ok or
not used
0: I13
Stuck at
high
1: OK or
not used
Q1
Stuck at
high
IQ1 (Out-
put)
Stuck at
high
Bit 0
Not used
("execut-
ing state")
Two-
channel
evaluation
of input
I1–I2
Test im-
pulse
compar-
ison I1 vs.
X1
20