General - ABB AE/S 4.2 Product Manual

®
ABB i-bus EIB / KNX
3.3.5

General

Commissioning
Fig. 26: Communication objects "General"
No. Function
40 In operation
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
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:
Bit 7: Not assigned
Bit 6: Not assigned
Bit 5: Internal error in analogue component
Telegram value
Bit 4: Undervoltage V+ < 20 V
Telegram value
Bit 3: Status of channel D, measured value outside range
Telegram value
Bit 2: Status of channel C, measured value outside range
Telegram value
Bit 1: Status of channel B, measured value outside range
Telegram value
Bit 0: Status of channel A, measured value outside range
Telegram value
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"
Object name
System
System
76543210
always "0"
always "0"
"0": In range
"1": Outside range
"0": OK > 20 V
"1": Not OK < 20 V
"0": In range
"1": Outside range
"0": In range
"1": Outside range
"0": In range
"1": Outside range
"0": In range
"1": Outside range
Data type Flags
EIS1, 1 bit C, R, T
DPT 1.003
EIS none C, R, T
DPT none
39