22
4
Basic Knowledge
To ensure data integrity, data transfer between the data carrier and read/write device can be
monitored using a CRC_16 data check.
With the CRC_16 data check, a checksum is written to the data carrier which enables the data
to be checked for validity at any time.
Advantages of the CRC_16 data check:
– Very high data integrity, even during the non-active phase (data carrier outside the read/write
head)
Restrictions of the CRC_16 data check:
– Longer write times, as the CRC must also be written.
– User bytes are lost on the data carrier
(see table on page 23)
.
Use of CRC_16 can be configured by the user
(see chapter „7.2 Mapping of Parameter Data“
.
The Autoread function is used to immediately read out a specific memory area of the data carrier
when the data carrier enters the vicinity of the read head. The data quantity here is 8 bytes (BIS
M-4_ _-045-...) or 30 bytes (BIS M-4_ _-072-...), the start address can be configured in the
parameters.
If a read error occurs during autoread or if the specified data area lies outside the capacity of the
data carrier, no error is displayed. In this case, no data is output.
4.5 Data integrity
4.6 Autoread
BIS M-4 _ _ IO-Link Device
Read/Write Device
Содержание BIS M-4 045 0 07-S4 Series
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Страница 3: ...Technische Beschreibung Betriebsanleitung deutsch BIS M 4_ _ 045 _0_ 07 S4 BIS M 4_ _ 072 _0_ 07 S4...
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Страница 67: ...www balluff com 65 BIS M 4_ _ IO Link Device Schreib Leseger t...
Страница 69: ...Technical Description Operating Manual english BIS M 4_ _ 045 _0_ 07 S4 BIS M 4_ _ 072 _0_ 07 S4...
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Страница 138: ...4 BIS M 4_ _ IO Link 7 43 7 1 43 7 2 44 7 3 45 8 46 9 47 9 1 47 9 2 48 9 3 52 9 4 53 9 5 58 9 6 59 62 62 62 ASCII 63...
Страница 139: ...www balluff com 5 8 UL 3TLJ E227256 IC RSS 1 2 FCC FCC 15 1 2 BIS M 4_ _ IO Link 1 1 1 2 1 BIS M 4_ _ IO Link...
Страница 141: ...www balluff com 7 1 BIS CRC DPP EMC LSB MSB PC SIO IO SPDU PLC TCP 1 6 1 7 BIS M 4_ _ IO Link...
Страница 142: ...8 BIS M 4xx_ _ BIS M EMC A IO Link BIS M 4_ _ 24 A 2 1 2 2 2 3 2 BIS M 4_ _ IO Link...
Страница 152: ...18 3 IO Link M12 A 1 24 V 2 3 GND 4 C Q 2 2 2 IO Link IO Link RC 3 2 BIS M 4_ _ IO Link...
Страница 153: ...www balluff com 19 BIS M BIS M IO Link 16 1 IO Link 2 3 4 IO Link IO Link PC PLC 4 1 4 BIS M 4_ _ IO Link...
Страница 156: ...22 4 CRC_16 CRC_16 CRC_16 CRC_16 CRC 23 CRC_16 44 7 2 8 BIS M 4_ _ 045 30 BIS M 4_ _ 072 4 5 4 6 BIS M 4_ _ IO Link...
Страница 180: ...46 IO Link BIS M IO Link 10 BIS M 4_ _ 045 00_ 07 S4 32 BIS M 4_ _ 072 00_ 07 S4 8 BIS M 4_ _ IO Link...
Страница 192: ...58 01hex 02hex 03hex 04hex 05hex 07hex AV 00hex 0Ehex CRC CRC 0Fhex 48 20hex 21hex AV 9 5 9 BIS M 4_ _ IO Link...
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