Technical data

Feldbus Coupler 750-344 / -345 • 67
Diagnostics
WAGO-I/O-SYSTEM 750
INTERBUS
3.1.6.2.2 Diagnostics Word in the Process Output Image
The diagnostics output word (first work in the process output image) has the
following functions.
Data bit Meaning
D15 Reserved (= 0)
D14
D13 Reserved
D12
D11
D10
D9
D8
D7 Delete diagnostics memory completely in the fieldbus coupler
D6
D5
D4
D3
D2
D1
D0 confirm current diagnostics information
The current diagnostics information is transferred in the diagnostics input
word (first word in the process input image) from the fieldbus coupler. If the
bit D0 is set in the diagnostics output word, the current diagnostics
information will be confirmed in the bus coupler. The coupler sets the contents
of the diagnostics input word to 0 once it has received confirmation. After this,
the master must de-activate the D0 bit again in the diagnostics output word.
When this status is detected, the coupler checks whether the buffer contains
any other diagnostics information. If other data is present the coupler enters
the next data into the diagnostics input word.
Unused bits in the diagnostics output word must be set to '0'