39
ABB i-bus
®
EIB / KNX
Commissioning
Fig. 26: Communication objects “General”
No.
Function
Object name
Data type
Flags
40
In operation
System
EIS1, 1 bit
DPT 1.003
C, R, T
This communication object is active if “yes” has been selected in the “Send cyclical “in
operation” telegram” parameter.
If the communication object is active, it sends a “1” telegram cyclically. This communication
object is sent once when the device is started and then cyclically after the set send delay.
The presence of the Analogue Input product can be monitored using this communication
object.
41
Status byte
System
EIS none
DPT none
C, R, T
The communication object is used to establish whether one of the measured values lies
outside the measuring range, whether the supply voltage of the sensors falls below 20 V,
whether the sensors have a short circuit, whether an error can be detected in the analogue
component and whether time synchronisation is available.
Bit sequence:
76543210
Bit 7:
Not assigned
always “0”
Bit 6:
Not assigned
always “0”
Bit 5:
Internal error in analogue component
Telegram value
“0”: In range
“1”: Outside range
Bit 4: Undervoltage V+ < 20 V
Telegram value
“0”: OK > 20 V
“1”: Not OK < 20 V
Bit 3: Status of channel D, measured value outside range
Telegram value
“0”: In range
“1”: Outside range
Bit 2: Status of channel C, measured value outside range
Telegram value
“0”: In range
“1”: Outside range
Bit 1: Status of channel B, measured value outside range
Telegram value
“0”: In range
“1”: Outside range
Bit 0: Status of channel A, measured value outside range
Telegram value
“0”: In range
“1”: Outside range
The communication object is sent after a change and can be read using a value read
command. This communication object is sent once automatically after the set send delay
when the device is started.
A truth table is included in the appendix.
With perfect function the value of the status byte is zero.
Table 9: Communication objects 40 and 41 – “General”
3.3.5 General