Lenze EPM-T1 Series - Page 184

Transmitting process data
Data transmission between I/O system IP20 and controller
8
Networking via system bus (CAN)
8.3
8.3.8
L
8.3−10
EDSPM−TXXX−9.0−11/2009
The planned solution is a modular system with the following modules:
I/O system IP20
Modular system
Number
modules
Required PDOs
PDO−Rx PDO−Tx
8×digital input / output 1 1/8 1/8
8×digital input 1 – 1/8
4×analog input 1 1 –
Sum 3 9/8 2/8
For exchanging the process data, the 8200 vector makes enough PDOs available:
Frequency inverter
Available PDOs
PDO−Rx PDO−Tx
8200 vector 2 2
8.3.8 Data transmission between I/O system IP20 and controller
l The basic identifiers of PDO1−Rx and PDO1−Tx are pre−assigned in such a
way that they can exchange data with the process data objects of
CAN−IN3/OUT3 of a controller.
l The basic identifiers of PDO2−Rx and PDO2−Tx are pre−assigned in such a
way that they can exchange data with the process data objects of
CAN−IN2/OUT2 of a controller.
l
L
EPM – T110 1A.10
PW
ER
RD
BA
ADR.
0
1
+
–
DC
24V
X1
DO 8xDC24V 1A
.0
L+
.1
.2
.3
.4
.5
.6
.7
F
1
2
3
4
5
6
7
8
9
L
10
EPM – T220 1A
DI 8xDC24V
.0
.1
.2
.3
.4
.5
.6
.7
1
2
3
4
5
6
7
8
9
L
10
EPM – T210 1A
PDO1-Rx
CAN_OUT3
CAN_IN3
PDO1-Tx
0
1




epm−t112
Fig. 8.3−2 Data transmission between I/O system IP20 and controller
PDO−Rx The I/O system IP20 receives the status information from the controller
PDO−Tx The I/O system IP20 transmits the status information to the controller

Controller with node address 1 (C0350 = 1)
 769
d
(basic identifier) + 1 (node address) = 770
d
(identifier)
 768
d
(basic identifier) + 1 (node address) = 769
d
(identifier)

CAN gateway of the modular system (or a module of the compact system)
with node address 2
 768
d
(basic identifier) + 2 (node address) = 770
d
(identifier)
 767
d
(basic identifier) + 2 (node address) = 769
d
(identifier)
Solution