2 operating state of system bus (can), 3 reading out the module identifiers, 4 status of the digital inputs – Lenze EPM−T9XX Modular system User Manual
Page 207: Operating state of system bus (can), Reading out the module identifiers, Status of the digital inputs, Networking via system bus (can), Diagnostics operating state of system bus (can)
Diagnostics
Operating state of system bus (CAN)
Networking via system bus (CAN)
8.10
8.10.2
L
8.10−3
EDSPM−TXXX−9.0−11/2009
8.10.2
Operating state of system bus (CAN)
Index I2359
h
displays the operating status of the system bus.
I2359
h
Operating status
Description
0
Operational
The system bus is fully functional. The I/O system can transmit and receive parameter and process data.
1
Pre−Operational
The I/O system can transmit and receive parameter data while process data are ignored.
The status can be changed from
Pre−Operational to Operational by:
·
The CAN master
·
An NMT telegram ’00 01 00’
2
Warning
The I/O system has received incorrect telegrams and becomes passive in the overall system bus environment, i. e., the I/O
system can no longer transmit data.
Possible causes:
·
A missing bus termination
·
Insufficient shielding
·
Potential differences in the earth connections for the control electronics
·
The bus load is too high
3
Bus off
The I/O system has disconnected itself from the system bus after receiving too many incorrect telegrams.
Index
Name
Possible settings
Important
Lenze
Selection
I2359
h
CAN state
0
{1}
3 Display only
System bus status
^ 8.10−3
0
1
2
3
Operational
Pre−Operational
Warning
Bus off
8.10.3
Reading out the module identifiers
When using the modular system, the number of the modules connected to the
backplane bus as well as the module types used can be read out via index I1027
h
.
Each module type can be clearly identified via a hexadecimal value.
Index
Subindex
Reading...
Module type
Module identifier
0
... the number of plugged modules (0 ... 32)
—
0
h
... 20
h
I1027
h
1 ... 32
... the module type in slots 1 ... 32
No module
0
h
8×digital input
9FC1
h
16×digital input
9FC2h
1×counter/16×digital input
08C0h
8×digital output 1A
16×digital output 1A
8×digital output 2A
4×relay
AFC8
h
8×digital input / output
BFC9
h
4×analog input
15C4h
4×analog output
A5E0
h
4×analog input / output
45DB
h
2/4×counter
B5F4
h
SSI interface
B5DB
h
8.10.4
Status of the digital inputs
Via the index I6000
h
the status of the digital inputs can be displayed.