Canopen communication – Lenze I/O system 1000 System Manual User Manual
Page 281

CANopen communication
Transmitting parameter data
Reading a parameter (example)
l
281
EDSIO1000 EN 7.0
Telegram from the I/O system (value of the requested parameter)
Formula
Information
Identifier
= Basic identifier + node address
= 1408 + 2 = 1410
l
Basic identifier for parameter channel 1 (input) = 1408
l
Node address of the I/O system = 2
Instruction code = 43
h
l
Read Response command (response to the read request
with the current value)
Index
= Index of the read request
Subindex
= Subindex of the read request
Data 1
Data 2
Data 3
Data 4
Data 1 ... 4
= 00
h
= 00
h
= 05
h
= 3B
h
= 00 00 05 3B
h
l
Assumption: The first channel of the first analog
module outputs a voltage signal 0 ... +10 V with a
resolution of 0 ... 07648
dec
.
11 bits
Eight bytes of user data
Identifier
Instructio
n code
Index
Subindex
Data 1
Data 2
Data 3
Data 4
LOW byte HIGH byte
1410
43
h
00
h
31
h
0
00
h
00
h
05
h
3Bh