D300529 0115 - BL67 I/O modules
12-79
BL67-1CNT/ENC
12.5.8 Process data of the module
Process input/status interface
X = reserved
Byte Byte
in DP
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Status bytes
0 11 X A B Z DI3 DI2 DI1 DI0
110
ERR_
PARA
SYNC_
AKN
XXXXX
Count
direction
29
REG_
WR_
ACCEPT
REG_
WR_
AKN
XXX
STS_
ZC
STS_
OFLW
STS_
UFLW
Communication 3 8
REG_
RD_
ABORT
REG_ACT_RD_ADR
user data
4 7 REG_RD_DATA, byte 0
5 6 REG_RD_DATA, byte 1
6 5 REG_RD_DATA, byte 2
7 4 REG_RD_DATA, byte 3
8 3 AUX_RD_DATA, byte 0
9 2 AUX_RD_DATA, byte 1
10 1 AUX_RD_DATA, byte 2
11 0 AUX_RD_DATA, byte 3
Table 12-8:
Process input data
of the module
Bit Value Meaning
DI0 to DI3 0 Digital input DIx = 0
1
Digital input DIx = 1
A, B, Z 0 Digital input A, B or Z = 0
1
Digital input A, B or Z = 1
Count direction 0 Up
1
down
SYNC_AKN 0 Encoder not synchronized.
1
Encoder not synchronized with zero-position.
ERR_PARA 0 The last change in parameters is valid.
1
Faulty/inconsistent parameter data.
STS_UFLW 0 No underflow
1
Counter value below lower limit of counter range.