I/O Diagnostics Interface - Festo MSE6-E2M Original Instructions Manual

8 Diagnostics and error handling
Examples of typical status information
No error signalled
Error type
Other er­
ror
Bit 7
Status 0
Tab. 8.16 Example 1 – no fault
Exceeding upper flow limit
Error type
Other er­
ror
Bit 7
Status 1
Tab. 8.17 Example 2 - Exceeding upper flow limit value
If different errors occur simultaneously on different types of modules, errors cannot be
distinguished. Use the I/O diagnostic interface in order to distinguish faults clearly
(è 8.3.2 I/O diagnostics interface).
8.3.2

I/O diagnostics interface

With networks that do not possess extensive diagnostic functions, the diagnostic information of the
MSE6-E2M is available via the I/O diagnostic interface. The I/O diagnostic interface enables network-in­
dependent read-only access to diagnostic information, data and parameters via internal inputs and
outputs (16 I/16 O).
Organisation of internal data and parameters
Internal data and parameters of the MSE6-E2M are stored in a common memory area. With the I/O
diagnostic interface, read access to individual bytes of this memory area can be achieved with the aid
of the function number.
Parameters can be modified, depending on the network used, with the aid of network-
specific functions or the CPX-MMI operator unit.
94
Wire Short
break circuit
6 5
0 0
Wire Short
break circuit
6 5
0 0
Module type
Under­ Ana­
voltage logue,
function
4 3
0 0
Module type
Under­ Ana­
voltage logue,
function
4 3
0 1
Festo – MSE6-E2M-SY-EN – 1703d – English
Input Output
2 1
0 0
Input Output
2 1
0 0
Valve
0
0
Valve
0
0