Configuration and Parameter Assignment Frame for the IM 178-4
B-5
IM 178-4
C79000-G7076-C178-01
Table B-2 Technological Parameters
Byte Meaning of the bits
What can be assigned
Default
Value
Bit
18
0..3
0
H
With sensor type 1 to 3:
normalization
Number of places by which the
sensor value is shifted right be-
fore it is entered in the user data
area (possible values with an SSI
13-bit position encoder: 0 to 9;
otherwise 0 to 15)
4..5
00
With sensor type 4 and 5:
synchronization condition
00=software
01=zero mark
10=digital input 0I1
11=digital input 0I1 and zero mark
6..7
00
With actual reference value
generation via 0I0:
Edge se-
lection 0I0
00=none
01=falling edge at 0I0
10=rising edge at 0I0
11=both edges of 0I0
19
00
H
reserved
20
00
H
reserved
Parameters for channel 1
21
0..2
100
Sensor type
000=none
001=SSI 13-bit
010=SSI 21-bit
011=SSI 25-bit
100=incremental sensor
101=incremental sensor inverted
3
1
With sensor type 1 to 3:
Gray/
binary convertor
0=off
1=on
4..5
00
With sensor type 1 to 3:
baud
rate
00=125 kHz
01=250 kHz
10=500 kHz
11=1 MHz
6..7
00
With sensor type 0 to 3:
monoflop time
The duration of two shift clock
periods must be added to the
monoflop times. At a baud
rate of 125 kHz, this is 16
µ
s.
The connected position enco-
der (refer to the manufactu-
rers information) must have a
Monoflop time shorter than
the time set here.
00=16
µ
s
01=32
µ
s
10=48
µ
s
11=64
µ
s