Festo CPV -GE-DN2-8 Electronic Manual page 116

B. DeviceNet objects
B.1.9 Structure of the diagnostic byte
Module Bit 7
V
Load
CPV Direct
basic unit
CP valve
terminal in the
extension
Input module
Output module
– 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 chapter 3.5.1)
– V : Load voltage failure at output module
off
– V : Operating voltage failure at input module or sensors, short circuit/overload of sensor
sen
supply (see chapter 3.5.2)
Load voltage of valve coils < 20.4 V
– V :
tol
– CM: Condition Monitoring. At least one valve counter has exceeded the limit
Power supply of the CPV Direct < 20.4 V
– V :
Load
B-12
The diagnostic byte gives information on recognizable errors
of the CPV Direct and of the modules in the extension.
Bit 6 Bit 5 Bit 4
CM V V
tol sen
Further information can be found in chapter 3.4.
Bit 3 Bit 2 Bit 1
V I mod.
Short
off
circuit/
overload
Festo P.BE-CP-DN2-EN en 0107NH
Bit 0
O mod.