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Prosoft-technology 5204SE-MNET-PDPMV1 Manual de usuario Pagina 106

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5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference
Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual
Page 106 of 235 ProSoft Technology, Inc.
December 22, 2009
DFB Write Cyclic Data - M340
MNETDPV1_BASICVAR_WriteCyclicData Variables - M340
This variable structure is the one to use with your control and sequencing logic
when you want to send a request to write PROFIBUS cyclic output data.
Variable Name Size/Type Description
Out -
WriteCyclicData
1
Single-bit
Boolean
This is the bit your control and sequencing logic will use to
trigger a cyclic write message. Set this bit to one (1)
whenever no other messages are active and when you
want to send PROFIBUS cyclic slave output data.
Out - RegisterCount 1
16-bit integer
Will hold the total number of 16-bit register words of
PROFIBUS cyclic output data that need to be written. This
value will be the same as what you entered in the PCB
configuration for the [PROFIBUS Master DPV1] Output
Data Size parameter.
Out - Timeout 1
16-bit integer
Used to hold the amount of time in milliseconds to wait for a
response to the Modbus TCP/IP command before assuming
a communication error has occurred and setting the In-
MessageError status bit.
Out - MailBoxData Multi-variable
nested DDT
For details, see Modbus DDT (page 98).
In - MessageDone 1
Single-bit
Boolean
The DFB will set this bit when the Modbus TCP/IP response
is successfully received and the PROFIBUS cyclic output
data memory area in the gateway has been updated.
In - MessageError 1
Single-bit
Boolean
The DFB will set this bit when the Modbus TCP/IP response
is not successfully received. When this bit is set, it indicates
your control and sequencing logic should retry the
command.
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