Specifications

IP 240 Position Decoding
Interrupt request byte for Channel 1 and Channel 2
Channel 1
Channel 1
Channel 2
Channel 2
DL 20
DR 20
DL 21
DR 21
7
Data
byte
6 5 4 3 2 1 0
RF6
0
RF6
0
RF5
0
RF5
0
RF4
0
RF4
0
RF3
DRB
RF3
DRB
RF2
NPU
RF2
NPU
RF1
UEB
RF1
UEB
Bit
RF8
0
RF8
0
RF7
0
RF7
0
RFn =1 Process interrupt was initiated by positive-going edge of corresponding reference
bit REFn
DRB =1 Process interrupt was initiated by wire break monitoring
NPU =1 Process interrupt was initiated by zero mark monitor
UEB =1 Process interrupt was initiated by a range violation
Hysteresis
10
1
DL 22
DR 22
7
Data
byte
6 5 4 3 2 1 0
0 0 0 0 0 0
Bit
0 0
10
0
The hysteresis can be specified in the range 0 to 99.
The values entered in DL 22 are not taken into account and do not lead to an error message.
Identifier of the configured mode and data block number
DL 23
DR 23
7
Data
byte
6 5 4 3 2 1 0
0
2
5
0
2
4
0
2
3
0
2
2
0
2
1
1
2
0
Bit
0
2
7
0
2
6
DB no.
After error-free configuring of the channel, a bit combination corresponding to the mode is
entered in DL 23.
DL 23 =01
H
The channel was configured for position decoding mode
DR 23 = Number of the data block (in binary)
EWA 4NEB 811 6120-02a 7-27