
Response
Byte
Value
Description
B0
0x10
n
‘Status communication’ on page 319
n
Bit 6 ... 4: 001 Telegram type
‘Read Value’
n
Bit 7: 0 fix reserved
B1
...
n
ID
of the measurand from the request
B2
...
n
Length of the user data with measured values in byte
n
DS-ID
of the measured value from the request, which was read
B3
...
n
D00
...
n
User data with the requested measured value
n
Byte order: high byte, low byte (big endian)
...
D11
In the example with
ID
= 14 the temperature of the module for
DS-ID
= 1 is requested.
Request
Byte
Value
Description
B0
0x10
Telegram type
‘Read Value’
B1
0x0E
of the measurand
B2
0x01
of the measured value to be read (
DS-ID
= 1)
B3
0x00
Common status (not relevant)
D00
-
User data (not relevant)
...
D11
Response
Byte
Value
Description
B0
0x10
Telegram type
‘Read value’
from the request
B1
0x0E
ID
of the measurand from the request
B2
0x21
Length of the user data here temperature 2 byte
DS-ID
of the measured value from the request, which was read
B3
0x00
: OK
D00
0x00
User data with the requested temperature e.g. 35°C
D01
0x23
Example ‘Read Value’
VIPA System SLIO
Analog Input
031-1PA00 - AI1x 3Ph 230/400V 1A > Process data communication
HB300 | SM-AIO | | en | 17-05
322