Festo CPX-FB33 Manual page 106

2. Commissioning
Device-specific parameters
Summarise channel alarm filters
1)
("channel bundling")
Analogue process value representa-
tion (Intel/Motorola format)
1) Only available for bus nodes from CPX revisions code 20 ("Rev 20").
Tab. 2/14: Bus node parameters – part 2
2-58
Description/setting options
– Inactive:
Channel alarms are reported individually over the network
– Active:
Channel alarms (e.g. short circuit or undervoltage) are
summarised and transmitted as a common message over
the network; the error is also displayed through flashing of
the corresponding LED on the bus node
Special bus node parameter – defines the representation of
process values of the analogue modules – setting options:
– Intel byte sequence (LSB-MSB, "Little Endian";
factory setting):
Process values are displayed in the Intel format
(least significant bit on the left, most significant bit)
– Motorola byte sequence (MSB-LSB, "Big Endian"):
Process values are displayed in the Motorola format (most
significant bit on the left, least significant bit on the right)
This parameter can also be set via the I/O diagnostic interface
with the function number 4402 in bit 7:
– Value "0": Intel (LSB-MSB; factory setting)
– Value "1": Motorola (MSB-LSB)
The setting of the byte sequence or of the process value rep-
resentation is dependent on your control system and the re-
lated user programs: Select the byte sequence used in your
control system.
Note
Take into account the set bus node parameters in your
user programs also, in particular the "analogue process
value representation" (byte sequence).
Festo P.BE-CPX-PNIO-EN en 1407c English