Balluff BIS M-4 045 0 07-S4 Series, Operating Manual

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Data exchange occurs via the process data, which, depending on the control system that is
used, is mapped in the input and output buffer or in a memory field. The BIS M-4_ _-045-…
uses 10 bytes of input data and 10 bytes of output data, the
BIS M-4_ _-072-… uses 32 bytes for each. The assignments are described in the following.
Subaddress 00
hex
corresponds to the respective start address in the corresponding data field.
The BIS M-4_ _ provides two fields for sending commands and data between the BIS M-4_ _
read/write device and the host system:
– Output buffer
– Input buffer
These fields are embedded in process data transmission via the IO-Link master. As already
described, 10 or 32 bytes of process data are sent in each direction.
The mapping of this process data is described in the following:
Output buffer:
Bit No.
Subaddress
7 6 5 4 3 2 1 0
00
hex
- 1st bit string TI KA GR AV
01
hex
Command designator or data
02
hex
Start address (low byte) or data
03
hex
Start address (high byte) or data
04
hex
Number of bytes (low byte) or data
05
hex
Number of bytes (high byte) or data
06
hex
Data
07
hex
Data
08
hex
Data
Last byte - 2nd bit string TI KA GR AV
Explanations on the output buffer using 10 bytes as an example:
Subaddress Bit
name
Meaning Function description
00
hex
1st bit string
TI
Toggle bit A state change during a job indicates that the
controller is ready to receive additional data made
available by the read/write device.
KA Head on/off 1 = Head off (read/write head switched off)
0 = Head on (read/write head in operation)
GR Basic state 1 = Software reset - causes the BIS to switch to
the ground state
0 = Normal operation
AV Job 1 = New job pending
0 = No new job or job no longer pending
01
hex
Command
designator
00
hex
= No command
01
hex
= Read data carrier
02
hex
= Write data carrier
12
hex
= Initialize the CRC_16 data check on the
data carrier
32
hex
= Write a constant value on the data carrier
9.2 Process data
Output/input
buffer
9
Device Function
BIS M-4 _ _ IO-Link Device
Read/Write Device