IFM Electronic Efector 400 RM30 Series, Руководство по эксплуатации устройства

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Encoder with ProfiNet interface
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8.4.3 Encoder status word (ZSW2_ENC)
4-bit counter, left-aligned� The slave application starts the sign-of-life counter with
any value between 1 and 15 after successful synchronisation to the clock pulse�
The counter is increased in every DP cycle of the slave application� Valid values
for the slave's sign-of-life counter are 1 to 15, "0" indicates an error and is left out
in normal operation�
Implementation
Bit Function Class 3 Class 4
0���8 Reserved,
currently not used
- -
9 Control requested Mandatory Mandatory
10���11 Reserved,
currently not used
- -
12���15 Encoder sign-of-life counter - Mandatory
Bit Value Meaning Comments
9 1 Control requested Control via interface,
IO data is valid
0 No control via PLC IO data is not valid, except sign-
of-life
12���15 Encoder
Sign-of-life counter
Continuously sends
counting values from 0 to 15
8.4.4 Encoder control word (G1_STW)
Bit Value Function Comments
0���10 Reserved,
currently not used
11 0/1 "Home position" mode Specifies if the position value
shall be set to a previously
programmed absolute value or
shifted by this value�
0: set home position / preset
(absolute)
1: shift home position / preset
(relative = offset)
12 1 Set preset /
shift request
Preset (shift) is set when chan-
ging this bit to "1" (rising edge)�
Default preset value:
(shift): 0
Warning:
After setting the preset the offset
will be saved in the EEPROM� In
these 5-10 ms the encoder will
not send position values�