System integration
Smartec S CLD132/134 PROFIBUS-PA/-DP
20
Hauser
Customizing the cyclic data telegram
You can customize the cyclic telegram to better meet the requirements of a process. The
tables above represent the maximum contents of the cyclic data telegram.
If you do not want to use all output variables of the transmitter, you can use the device
configuration (CHK_CFG) to eliminate individual data blocks from the cyclic telegram via the
PLC software. Shortening the telegram improves the data throughput rate of a PROFIBUS
system. You should only keep those blocks active which you process further in the system.
You can do this by means of a ”negative” selection in the configuration tool.
To achieve the correct structure of the cyclic data telegram, the PROFIBUS master must send
the identification FREE_PLACE (00h) for the non-active blocks.
Status codes for the OUT parameter of the Analog Input block
Status code
Device status
Meaning
Limits
0x00
0x01
0x02
0x03
BAD
non-specific
OK
LOW_LIM
HIGH_LIM
CONST
0x04
0x05
0x06
0x07
BAD
configuration error
OK
LOW_LIM
HIGH_LIM
CONST
0x0C
0x0D
0x0E
0x0F
BAD
device failure
OK
LOW_LIM
HIGH_LIM
CONST
0x10
0x11
0x12
0x13
BAD
sensor failure
OK
LOW_LIM
HIGH_LIM
CONST
0x1F
BAD
out of service
CONST
0x40
0x41
0x42
0x43
UNCERTAIN
non-specific
OK
LOW_LIM
HIGH_LIM
CONST
0x47
UNCERTAIN
last usable value
CONST
0x4B
UNCERTAIN
substitute set
CONST
0x4F
UNCERTAIN
initial value
CONST
0x50
0x51
0x52
0x53
UNCERTAIN
sensor conversion not
accurate
OK
LOW_LIM
HIGH_LIM
CONST
0x5C
0x5D
0x5E
0x5F
UNCERTAIN
configuration error
OK
LOW_LIM
HIGH_LIM
CONST
0x60
0x61
0x62
0x63
UNCERTAIN
simulated value
OK
LOW_LIM
HIGH_LIM
CONST