Bender ISOMETER isoPV425 - Measuring Values; Float = Floating Point Value of the Channels

Modbus register assignment of the ISOMETER®
50
isoPV425_D00028_09_M_XXEN/05.2018
8.1.2 Measuring values
Each measuring value is available as a channel and consists of 8 bytes (4 reg-
isters). The first measuring value register address is 1000. The structure of a
channel is always identical. Content and number depend on the device. The
structure of a channel is shown with the example of channel 1:
8.1.2.1 Float = Floating point value of the channels
Presentation of the bit order for processing analogue measuring values
according to IEEE 754
S = Sign
E = Exponent
M = Mantissa
1000 1001 1002 1003
HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte
Floating point value (Float)
Alarm
type and
test type
(AT&T)
Range
and unit
(R&U)
Channel
description
Word
0x00 0x01
Byte
HiByte LoByte HiByte LoByte
Bit
31 30 24 23 22 16 15
8 7 0
S E E E E E E E E MMMMMMMMMMMMMMMMMMMMMMM