Diagnostics; The "I/O Index" Field - elobau 485EPF series Originalbetriebsanleitung

DIAGNOSTICS

Each input and each safety output is associated with a relative diagnostic code.
When the I/O is connected correctly the diagnostic code is OK and is not exported to the field bus;
if there is a problem on the I/O, the system exports 2 bytes to the field bus with:
- the index of the I/O in question
- the relative diagnostics code

The "I/O index" field

This field indicates the number used to identify the I/O with a diagnostics code other than OK.
Possible values for this field are shown in Table 2.
TYPE OF SIGNAL
Input
Output
eloProg 485EPF.. - Vers. 1.2
1-128
192-255
Table 2
I/O INDEX
6