Io-Link - Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung

BIS U-6127-081-1_4-06-ST36
Processor unit
8
007 protocol (continued)
8.12

IO-Link

The IO-Link-specific commands can be used to exchange
data via the IO-Link interface and to operate digital input/
output ports.
Command identifier 'i': Acyclical demand data, read
Read IO-Link device demand data/parameters.
Byte Length Command
element
00 1 Command
identifier (ASCII)
01...04 4 Index MSB...LSB
(ASCII hex)
05...08 4 Sub-index
MSB...LSB
(ASCII hex)
09 1 BCC
Status message:
Byte Length Command
element
00 1 Status
01 1 Status code
If the status message is positive, data is requested with
<STX>.
Byte Length Command
element
00 1 Control com-
mand
If the command cannot be executed properly, a negative
status message follows.
Byte Length Command
element
00 1 Status
01 1 Status code
www.balluff.com
If the command is executed successfully, a positive status
message follows. This contains a length field and the
requested data.
Byte
00
01...02 2
Value range
03
'i'
Last
"0000"..."FFFF" byte
"0000"..."FFFF"
00 ...FF
hex hex
Value range
<ACK> or
<NAK>
See Status codes
on page 94
Value range
<STX>
Value range
<NAK>
See table Status
codes on page
94
Length Command
element
1 Status
Number of bytes
(ASCII)
No. of Data
bytes
1 BCC
english
Value range
<ACK>
"00"..."99"
Byte:
00 ...FF
hex hex
00 ...FF
hex hex
125