
3.27.7.2.4
Read Frame
In the module you can combine some measurands to one data package (Frame), which
is transferred in one step.
With
‘Read Frame’
a Frame can be requested.
Request
Byte
Value
Description
B0
0x20
n
Bit 3 ... 0: Error code (not relevant)
n
Bit 6 ... 4: 010 Telegram type
‘Read Frame’
n
Bit 7: 0 fix reserved
B1
?
n
B2
0x00
n
Length of the user data is 0
?
n
of the measured value to be read
B3
0x00
n
Common status (not relevant)
D00
-
n
Common status (not relevant)
...
D11
Response
Byte
Value
Description
B0
0x20
n
‘Status communication’ on page 319
n
Bit 6 ... 4: 010 Telegram type
‘Read Frame’
n
Bit 7: 0 fix reserved
B1
...
n
FR-ID
of the Frame 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 Frame with measured values
n
Byte order: high byte, low byte (big endian)
...
D11
Overview
VIPA System SLIO
Analog Input
031-1PA00 - AI1x 3Ph 230/400V 1A > Process data communication
HB300 | SM-AIO | | en | 17-05
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