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FX2N-32DP-IF Profibus-DP Interface Unit
C-2-5:
FX
-4DA Extension Configuration (Intel Format)
2N
Requirements:
• Cyclic data is 4 word outputs in every cycle.
Table C-12: Cyclic Data of FX
1st
2nd
3rd
4th
• Parameter is 50 bytes.
• For the FX
FX
-4DA. The BFM #5 is set to 1111hex which will reset the analog outputs to the offset
2N
value if there is no further FROM/TO instruction.
The reason for this setting is the behavior of the FX
specification it will set the cyclic output data to '0' if the Slave detects an internal
watchdog error (Profibus down). In the case of the FX
an internal watchdog error will set the analog output data of channel 1,2,3 and 4 to 0
which means offset value.
• To hold the last output value, please use 'simple communication', because this
communication style is accessing the BFMs indirectly. In the case of a watchdog error of
the FX
held if BFM #5 is set to 0 for the corresponding channel.
Table C-13: FX
Nr.
Parameter Name
00
Next parameter
(1st)
uses EEPROM.
01
..O/G setting
(2nd)
prohibit/permit
RESET/INIT.
02
MODULE TO
(3rd)
DEFAULT
VERIFY RESET/
*1
03
INITIALISE
(4th)
COMMAND
04
Next parameter
(5th)
uses EEPROM.
(Intel Format)
Send Data
Data for channel 1
Data for channel 2
Data for channel 3
Data for channel 4
-4DA the GSD-File is using a setting which is different to the default of the
2N
-32DP-IF, access to the FX
2N
-4DA Extension Configuration (Intel Format)
2N
DON'T write parameter to
EEPROM
write parameter to EEPROM
permit offset/gain setting
prohibit offset/gain setting
no reset/initialisation
RESET/INITIALISE MODULE
no reset/initialisation
RESET/INITIALISE MODULE
DON'T write parameter to
EEPROM
write parameter to EEPROM
-4DA Extension Configuration
2N
-4DA will be stopped but the last output data will be
2N
Value Setting List
Receive Data
None
-32DP-IF, according to the Profibus
2N
-4DA ext. & short configuration,
2N
Description
The 2nd parameter use EEPROM.
Select "writing to EEPROM" setting
from the available options.
Select prohibit/permit setting of offset/
gain from the available options (BFM
#21).
Select initialize module setting from
the available options (BFM #20).
Select initialize module setting from
the available options (BFM #20).
The 6th to 9th parameter use
EEPROM. Select "writing to
EEPROM" setting from the available
options.
Appendix C:
C-15
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