Modbus TCP server
44
COM465IP-COM465DP_D00216_02_M_XXEN/03.2017
6.2.2.3 Device type
The device type is set using a bus scan.
6.2.2.4 Timestamp
The timestamp is set according to a datagram received from a transmitting device.
6.2.2.5 C = Common alarm and D = Device lost (device failure)
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.
6.2.2.6 Channels 1 to 32 with analogue and/or digital values
Every analogue device channel can contain alarm messages, operating messages, measured values,
test messages 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 chapter "6.2.5 ".
Word
0x00
0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09
ASCII text, 10 words/20 bytes
Word 0x0A 0x0B 0x0C 0x0D
HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte
Year
YY
Month
mm
Day
TT
Hour
hh
Minute
mm
Second
ss
Reserved
Word 0x0E
HiByte LoByte
CD
Common alarm, 1 byte:
LSB = 0 or 1
Device error, 1 byte:
LSB = 0 or 1
Word 0x00 0x01 0x02 0x03
HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte
Floating point value AT&T R&U Channel description
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