ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 133)

Reference 5204SE-MNET-PDPMV1 ♦ ProLinx Gateway
User Manual Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master
ProSoft Technology, Inc.
Page 133 of 235
December 22, 2009
Variable Name Size/Type Description
Out -
ReadAcyclicData 1
Single-Bit
Boolean
This is the bit your control and sequencing logic will use to
trigger a message to tell the PROFIBUS Master to read
PROFIBUS DP-V1 Acyclic Data from a specific slave on the
network. Set this bit to one (1) whenever no other messages
are active and you want to send this acyclic message.
Out -
SlaveAddress 1
8-bit Byte
Valid entries 0 - 125
Enter the node address of the slave device from which you
wish to receive Acyclic Data.
Out - Slot 1
8-bit Byte
Valid entries 0 - n (where 'n' is the highest configured slot
number on the target slave address - depends on device
configuration.)
Enter the slot number on the target node from which you wish
to retrieve the acyclic data.
Out - Index 1
8-bit Byte
See slave device manufacturer for valid entries.
This parameter is used to address the desired data block in
the target slave.
Out - Length 1
8-bit Byte
See slave device manufacturer for valid entries.
This parameter specifies the number of bytes of the data
block that has to be read. If the slave data block length is less
than requested, the length of the response will be the actual
length of the data block. If the slave data block is greater or
equal, then the response will contain the same amount of
data.
Out - MailBoxData Multi-variable
nested DDT
For details, see Modbus DDT (page 98)
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.
In - ErrorDecode 1
8-bit Byte
If 'Fault' contains error code 0010h, more information can be
found here. For information on how to interpret these values,
refer to the slave device manufacturer's documentation, or
the EN50170 (DP-V1) protocol specification.
In - Error1 1
8-bit Byte
If 'Fault' contains error code 0010h, more information can be
found here. For information on how to interpret these values,
refer to the slave device manufacturer's documentation, or
the EN50170 (DP-V1) protocol specification.
In - Error2 1
8-bit Byte
If 'Fault' contains error code 0010h, more information can be
found here. For information on how to interpret these values,
refer to the slave device manufacturer's documentation, or
the EN50170 (DP-V1) protocol specification.
In - Length 1
8-bit Byte
This value specifies the number of valid acyclic read data
bytes returned by the slave.
In - Extended
Fault 1
16-bit Integer
Refer to Read Class 1 Acyclic Data Message Structure (page
214)
In - Fault 1
16-bit Integer
Refer to Read Class 1 Acyclic Data Message Structure (page
214)
In - AcyclicData[ ] 243-element 8-
bit Byte Array
This array will hold the actual acyclic read data bytes
returned by the slave.