Klöckner-Moeller - Festo VIFB-02- Series Manual

VIFB1 - 02
Bit no.
Diagnostic
information
Signal status
Meaning Signal status L:
Signal status H:
*
Bit no. 0 always '1': Indicates a cyclic field bus participant.
Fig. 6/8: Protocol from of diagnostic byte
6-10
> IFB1-02_BES_V_018474g1_1996-04N - Restored Document - 2011-12-15 <
6. Diagnostic/error treatment
Klöckner-Moeller
The valve terminal/valve sensor terminals react
on the SUCONET like a PS3 in slave configura-
tion. The valve terminal/valve sensor terminal
therefore transfers its diagnostic byte to the mas-
ter via the PS3 operand "Analogue output" (3rd.
analogue channel). The master receives this dia-
gnostic byte from the SUCONET via the PS3
operand "3rd. analogue input" (5th. input chan-
nel). For further information see the following ex-
ample and the PLC manual of the control sys-
tem.
Example:
Load diagnostic byte.
Master:
Field bus address
of terminal:
Program:
LIA1.2 "Load diagnostic byte of terminal via 5th. input
channel to 1st. output byte of PS3
Diagnostic information can only be received via
this diagnostic byte, not via the remote user sta-
tus bytes.
Protocol form for diagnostic byte:
7
None
L or H
No error
Error
PS3
2 (= unit no. 1)
1 0
None None
*
H
*
Cyclic
field bus
slave
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