3D sensor
26
9.3.5 Transmit process values of the dimensioning of the object via PROFINET
The device can transmit the process values to a PLC via the PROFINET fieldbus. The process values are
displayed in the ifm Vision Assistant as output string as below:
Only one fieldbus can be active at a time. The fieldbus is adjustable
(→ software manual).
In the output string the process values are separated by a semicolon. The output string is transferred to a
PLC in the displayed sequence.
Observe the following remarks for the transmission of the output string to a PLC:
●
The output string is adjustable. The process values to be transferred can be set in the ifm Vision
Assistant.
●
Bytes 0 to 7 are part of the output string. They are not displayed in the ifm Vision Assistant (see
screenshot above).
●
Semicolons ";" in the output string are not transferred.
●
Float values are converted into 16-bit integers before the transmission.
●
All numerical values are converted into binary 16-bit integers before the transmission.
The output string is composed of the following:
star
;
1
;
0.104
;
0.088
;
0.109
;
+0.021
;
-0.011
;
+0.389
;
158
;
097
;
094
;
097
;
stop
Byte no.
Data
Coding
Process
value
Unit
Description
Comments
0
2#0010_0000 Binary
0.5
Duplicated
command word
●
Bit 0.5 shows a successful
trigger command
1
2#0000_0000 Binary
2
2#0000_0000 Binary
Synchronous /
asynchronous
message
identification
3
2#0000_0000 Binary
4
2#0000_0000 Binary
3
Message counter
●
The device has received 3
messages.
●
Increments by 1 with each
action (trigger, message sent
etc.).
5
2#0000_0011 Binary
6
2#0000_0000 Binary
Reserved
7
2#0000_0000 Binary
8
s
ASCII
star
Start string
9
t
ASCII
10
a
ASCII
11
r
ASCII
12
2#0000_0000 Binary
1
Result bit
0 = no box found
1 = box found
13
2#0000_0001 Binary
14
0
Decimal
104
mm
Width
15
104
Decimal
16
0
Decimal
88
mm
Height
17
88
Decimal
18
0
Decimal
109
mm
Length
19
109
Decimal
20
0
Decimal
21
x coordinate
21
21
Decimal
