Structure Of The Status Byte (Diagnostic Bytes - Festo CDVI-DN Manual

B. DeviceNet objects
B.1.8 Structure of the status byte (diagnostic bytes)
Module Bit 7
V
load
CDVI-DN
Valve terminal
on CP string
CP input mo-
dule
CP output mo-
dule
– O module: CP connection interrupted at output module
– I module: CP connection interrupted at input module
– SC/O: Short circuit/overload at output module (see section 3.4.1)
– V : load voltage failure at output module
off
– V : failure of operating voltage at input module or sensors, short circuit/overload in sensor
sen
supply (see section 3.4.2)
: load voltage in expansion block < 21.6 V
– V
tol
– CM: condition monitoring. At least one valve counter has exceeded the limit value.
: Load voltage in manifold block < 21.6 V
– V
load
Festo P.BE-CDVI-DN-EN en 0805a
The status byte provides information about the identifiable
errors of the CDVI-DN and the modules in the CP extension.
Bit 6 Bit 5 Bit 4
CM V V
tol sen
Further information can be found in section 3.3.
Bit 3 Bit 2 Bit 1
V SC/O I mod.
off
Bit 0
O mod.
B-9