Bender COMTRAXX CP9 Series Manual page 25

Modbus TCP server
4.2.2.5 C = Common alarm and D = Device lost (device failure)
Word 0x0E
HiByte
C
Common alarm, 1 byte: LSB
= 0 or 1
The common alarm bit is set as soon as an alarm status from the respective device is detected.
The device error bit is set when communication with the respective device is no longer possible.
4.2.2.6 Channels 1 to 32 with analogue and/or digital values
Word 0x00
HiByte LoByte
Floating point value (Float)
Every analogue device channel can contain alarm messages, operating messages, measured values, test mes-
sages and descriptive text. Both analogue and digital information can be transmitted.
AT&T = Alarm type and test type (internal/external)
R&U = Range and unit
For details on the channel description refer to Kapitel 4.2.5.
4.2.2.7 Float = Floating point value of the channels
Word
0x00
Byte
HiByte
3 3
Bit
1 0
S E E E E
Representation of the bit order for processing analogue measured values according to IEEE 754
S = Sign E = Exponent
CP9xx_D00349_07_M_XXEN/01.2020
LoByte
D
Device error, 1 byte:
LSB = 0 or 1
0x01
HiByte LoByte
LoByte
2 2 2
4 3 2
E E E E M M M M M M M M M M M M M M M M M M M M M M M
M = Mantissa
0x02 0x03
HiByte LoByte HiByte
AT&T R&U Channel description
0x01
HiByte
1 1
6 5
LoByte
LoByte
8 7 0
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