ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 117)

Reference 5204SE-MNET-PDPMV1 ♦ ProLinx Gateway
User Manual Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master
ProSoft Technology, Inc.
Page 117 of 235
December 22, 2009
Variable Name Size/Type Description
Out - Operate 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 begin and
continue normal network cyclic polling and acyclic messaging.
Set this bit to one (1) whenever no other messages are active
and you want to send this acyclic message.
Out - Stop 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 stop
normal network cyclic polling. Some acyclic messaging can
still be accomplished in this mode. Set this bit to one (1)
whenever no other messages are active and you want to send
this acyclic message.
Out - Clear 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 clear slave
diagnostic faults and re-initialize the PROFIBUS network. Set
this bit to one (1) whenever no other messages are active, the
network mode is currently set to STOP, and you want to send
this acyclic message.
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.
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.