Modbus TCP server
45
COM465IP-COM465DP_D00216_02_M_XXEN/03.2017
6.2.2.7 Float = Floating point value of the channels
Representation of the bit order for processing analogue measured values according to IEEE 754
S = Sign
E = Exponent
M = Mantissa
6.2.2.8 A&T = Alarm type and test type (internal/external)
The alarm type is coded by the bits 0 to 2.
The bits 3 and 4 are reserved and always have the value 0.
Bit 5 usually has the value 0 SMI472 and represents the digital value of the status
This column is relevant for the SMI472 only.
Bit 6 or 7 are usually set when an internal or external test has been completed.
Other values are reserved.
The complete byte is calculated from the sum of the alarm type and the test type.
Word
0x00 0x01
Byte
HiByte LoByte HiByte LoByte
Bit
31 30 24 23 22 16 15 8 7 0
SEEEEEEEEMMMMMMMMMMMMMMMMMMMMMMM
Bit 76543210 Meaning
Test external
Test internal
Status
Reserved
Reserved
Alarm
Error
Alarm type
XXXXX000 No alarm
XXXXX001 Prewarning
00XXX010 Device error
XXXXX011 Reserved
XXXXX100 Alarm (yellow LED), e.g. insulation fault
XXXXX101 Alarm (red LED)
XXXXX110 Reserved
XXXXX……… Reserved
XXXXX111 Reserved
Test
00XXXXXX No test
01XXXXXX Internal test
10XXXXXX External test
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